/* roulang page: index */
:root {
    --bg: #061121;
    --bg-deep: #030812;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-strong: rgba(255, 255, 255, 0.085);
    --stroke: rgba(255, 255, 255, 0.12);
    --stroke-light: rgba(255, 255, 255, 0.18);
    --blue: #2B6FFF;
    --cyan: #12E2FF;
    --green: #4AE3A0;
    --gold: #F7C75D;
    --light: #F4F9FF;
    --text: #C6D4EA;
    --muted: #7F91AF;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
    --glow: 0 0 0 1px rgba(18, 226, 255, 0.14), 0 10px 36px rgba(43, 111, 255, 0.32);
    --ease: all .25s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
    margin: 0;
    padding: 0;
}

ul,
ol {
    list-style: none;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--ease);
}

button,
input,
select,
textarea {
    font: inherit;
    letter-spacing: inherit;
}

button {
    border: 0;
    cursor: pointer;
    background: transparent;
}

input {
    border-radius: 0;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

.section {
    padding: clamp(72px, 9vw, 120px) 0;
    position: relative;
}

.grid-x {
    margin-left: -16px;
    margin-right: -16px;
}

.grid-x > .cell {
    padding: 0 16px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    height: 78px;
    display: flex;
    align-items: center;
    background: rgba(6, 17, 33, 0.5);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease, height .3s ease;
}

.site-header.scrolled {
    background: rgba(4, 12, 28, 0.86);
    border-bottom-color: var(--stroke);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(18, 226, 255, 0.22), rgba(43, 111, 255, 0.28));
    border: 1px solid rgba(18, 226, 255, 0.42);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 20px;
    box-shadow: 0 0 18px rgba(18, 226, 255, 0.12);
}

.brand-logo svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.brand-text {
    color: var(--light);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: .04em;
    white-space: nowrap;
}

.main-nav {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.main-nav > ul {
    display: flex;
    align-items: center;
    gap: clamp(16px, 2.4vw, 36px);
    list-style: none;
}

.main-nav a:not(.btn) {
    position: relative;
    display: inline-block;
    padding: 8px 0;
    font-size: 15px;
    color: #C6D4EA;
    line-height: 1.4;
}

.main-nav a:not(.btn)::after {
    content: "";
    position: absolute;
    left: 0;
    right: auto;
    bottom: 4px;
    width: 0;
    height: 2px;
    border-radius: 4px;
    background: var(--cyan);
    box-shadow: 0 0 10px rgba(18, 226, 255, 0.5);
    transition: width .25s ease;
}

.main-nav a:not(.btn):hover,
.main-nav a:not(.btn):focus-visible {
    color: #fff;
}

.main-nav a.active:not(.btn),
.main-nav a[aria-current="page"]:not(.btn) {
    color: #fff;
}

.main-nav a.active:not(.btn)::after,
.main-nav a[aria-current="page"]:not(.btn)::after {
    width: 22px;
}

.main-nav a:hover::after {
    width: 22px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 28px;
}

.nav-burger {
    width: 48px;
    height: 48px;
    display: none;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--stroke);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.nav-burger svg {
    width: 24px;
    height: 24px;
    display: block;
}

.nav-mask {
    display: none;
}

@media (max-width: 1024px) {
    .site-header {
        height: 64px;
    }

    .nav-burger {
        display: flex;
    }

    .main-nav {
        position: fixed;
        inset: 0;
        z-index: 100;
        padding: 92px 32px 32px;
        background: rgba(4, 10, 24, 0.96);
        backdrop-filter: blur(26px);
        -webkit-backdrop-filter: blur(26px);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform .3s ease, visibility .3s ease;
        flex-direction: column;
        align-items: flex-start;
        overflow-y: auto;
        margin-left: 0;
    }

    body.nav-open .main-nav {
        transform: translateX(0);
        visibility: visible;
    }

    .main-nav > ul {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        width: 100%;
    }

    .main-nav a:not(.btn) {
        display: block;
        padding: 14px 0;
        font-size: 28px;
        font-weight: 600;
        color: var(--text);
    }

    .main-nav a:not(.btn)::after {
        bottom: 10px;
    }

    .main-nav .nav-close {
        display: block;
    }
}

.countdown-bar {
    position: relative;
    z-index: 5;
    background: rgba(6, 18, 38, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid var(--stroke);
}

.countdown-inner {
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px 24px;
}

.live-state {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--light);
    font-size: 15px;
    font-weight: 600;
}

.pulse-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 rgba(74, 227, 160, 0.6);
    animation: pulse 1.6s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(74, 227, 160, .45); }
    70% { box-shadow: 0 0 0 12px rgba(74, 227, 160, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 227, 160, 0); }
}

.countdown-text {
    color: var(--muted);
    font-size: 14px;
}

.countdown-num {
    font-variant-numeric: tabular-nums;
    color: var(--cyan);
    font-size: 20px;
    font-weight: 500;
    letter-spacing: .08em;
    background: rgba(18, 226, 255, 0.08);
    padding: 5px 14px;
    border-radius: 999px;
    border: 1px solid rgba(18, 226, 255, 0.22);
    box-shadow: inset 0 0 16px rgba(18, 226, 255, 0.04);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 52px;
    padding: 0 32px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    min-height: 44px;
    cursor: pointer;
}

.btn:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
}

.btn-primary {
    background: linear-gradient(135deg, #12E2FF, #2B6FFF);
    color: #fff;
    box-shadow: 0 0 0 1px rgba(18, 226, 255, 0.18), 0 10px 36px rgba(43, 111, 255, 0.34);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 16px rgba(18, 226, 255, 0.22), 0 18px 42px rgba(43, 111, 255, 0.42);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 0 8px rgba(18, 226, 255, 0.14), 0 8px 24px rgba(43, 111, 255, 0.26);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #fff;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    border-color: var(--cyan);
    background: rgba(18, 226, 255, 0.08);
    color: #fff;
    transform: translateY(-2px);
}

.btn-small {
    height: 42px;
    padding: 0 20px;
    font-size: 14px;
}

.btn-dark {
    background: #061121;
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(18, 226, 255, 0.08);
    border: 1px solid rgba(18, 226, 255, 0.2);
    color: var(--cyan);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .06em;
}

.section-title-wrap {
    max-width: 760px;
    margin-bottom: clamp(32px, 5vw, 56px);
}

.section-title-wrap.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-title-wrap h2 {
    margin-top: 16px;
    color: var(--light);
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.35;
    letter-spacing: -0.02em;
    font-weight: 650;
}

.section-title-wrap h2 span {
    color: var(--cyan);
}

.section-desc {
    margin-top: 14px;
    color: var(--text);
    font-size: 16px;
}

/* Hero */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: clamp(48px, 7vh, 90px);
    margin-top: -1px;
    background:
        linear-gradient(105deg, rgba(3, 8, 18, 0.94) 0%, rgba(6, 17, 33, 0.78) 46%, rgba(43, 111, 255, 0.18) 100%),
        url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    right: -120px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: rgba(18, 226, 255, 0.1);
    filter: blur(90px);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 20%;
    width: 420px;
    height: 240px;
    border-radius: 50%;
    background: rgba(43, 111, 255, 0.12);
    filter: blur(100px);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 960px;
    padding-top: 64px;
    padding-bottom: 96px;
}

.hero-eyebrow {
    margin-bottom: 24px;
}

.hero h1 {
    max-width: 980px;
    margin: 6px 0 24px;
    color: #fff;
    font-size: clamp(38px, 6vw, 64px);
    line-height: 1.22;
    font-weight: 700;
    letter-spacing: -0.03em;
    word-break: break-word;
}

.hero-lead {
    max-width: 680px;
    color: #C9D6EC;
    font-size: clamp(16px, 1.7vw, 20px);
    line-height: 1.85;
    margin-bottom: 34px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 46px;
}

.hero-facts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 900px;
}

.hero-fact {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--stroke);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color .25s ease, background .25s ease;
}

.hero-fact:hover {
    border-color: rgba(18, 226, 255, 0.32);
    background: rgba(255, 255, 255, 0.075);
}

.hero-fact-title {
    color: var(--light);
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-fact-title i {
    font-style: normal;
    color: var(--cyan);
    font-size: 18px;
}

.hero-fact p {
    color: var(--text);
    font-size: 14px;
    line-height: 1.7;
}

.scroll-hint {
    position: absolute;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.4);
    font-size: 12px;
    letter-spacing: .2em;
    text-transform: uppercase;
}

.scroll-hint-line {
    width: 1px;
    height: 36px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2), transparent);
}

/* Feature wall / activity wall */
.feature-section {
    background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
}

.feature-wall {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: minmax(260px, auto);
    gap: 28px;
}

.feature-card {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--stroke);
    background: var(--panel);
    box-shadow: var(--shadow);
    transition: transform .25s ease, border-color .3s ease, box-shadow .3s ease, background .3s ease;
    min-height: 300px;
    display: block;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(18, 226, 255, 0.28);
    box-shadow: 0 0 0 1px rgba(18, 226, 255, 0.08), 0 22px 60px rgba(0, 0, 0, 0.38);
    background: var(--panel-strong);
}

.feature-card.span-col {
    grid-column: span 1;
}

.feature-card.span-row {
    grid-row: span 2;
}

.feature-card-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.feature-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.feature-card:hover .feature-card-img img {
    transform: scale(1.05);
}

.feature-card-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(3, 8, 18, 0.2) 0%, rgba(3, 8, 18, 0.72) 58%, rgba(3, 8, 18, 0.95) 100%);
}

.feature-card-content {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 30px 28px;
    z-index: 2;
}

.feature-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(18, 226, 255, 0.12);
    border: 1px solid rgba(18, 226, 255, 0.26);
    color: var(--cyan);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .08em;
    margin-bottom: 12px;
}

.feature-card h3 {
    color: var(--light);
    font-size: clamp(20px, 2vw, 25px);
    line-height: 1.4;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    color: #C3D1E8;
    font-size: 15px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-width: 520px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    color: var(--light);
    font-size: 14px;
    font-weight: 600;
}

.feature-link::after {
    content: "→";
    transition: transform .2s ease;
}

.feature-card:hover .feature-link::after {
    transform: translateX(5px);
}

/* Claim / CTA */
.claim-section {
    background: var(--bg-deep);
}

.claim-card {
    background:
        linear-gradient(120deg, rgba(3, 8, 18, 0.82), rgba(16, 41, 78, 0.55)),
        url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
    border: 1px solid var(--stroke);
    border-radius: 34px;
    padding: clamp(30px, 6vw, 72px);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.claim-card::after {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    right: -180px;
    bottom: -180px;
    background: rgba(18, 226, 255, 0.08);
    filter: blur(90px);
    border-radius: 50%;
    pointer-events: none;
}

.claim-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 42px;
    align-items: center;
}

.claim-copy h2 {
    color: #fff;
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.35;
    margin: 16px 0 18px;
    font-weight: 650;
}

.claim-copy p {
    color: #C9D6EC;
    font-size: 16px;
}

.claim-form {
    background: rgba(255, 255, 255, 0.065);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
    padding: 32px 28px;
}

.form-field {
    display: block;
    margin-bottom: 20px;
}

.form-field label {
    display: block;
    color: var(--light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-field input,
.form-field select {
    width: 100%;
    height: 52px;
    padding: 0 16px;
    background: #0A1428;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 14px;
    color: var(--light);
    transition: border-color .2s ease, box-shadow .2s ease;
    outline: none;
}

.form-field input::placeholder {
    color: var(--muted);
}

.form-field input:focus,
.form-field select:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 0 6px rgba(18, 226, 255, 0.08);
}

.form-note {
    font-size: 13px !important;
    color: var(--muted) !important;
    line-height: 1.7;
    margin-top: 14px;
}

/* News / CMS */
.news-section {
    background: var(--bg);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.news-list-item {
    display: grid;
    grid-template-columns: 290px 1fr;
    align-items: center;
    overflow: hidden;
    border-radius: 24px;
    background: var(--panel);
    border: 1px solid var(--stroke);
    text-decoration: none;
    transition: border-color .25s ease, background .25s ease, transform .2s ease;
    min-height: 174px;
}

.news-list-item:hover {
    background: var(--panel-strong);
    border-color: rgba(18, 226, 255, 0.24);
    transform: translateY(-3px);
}

.news-thumb {
    align-self: stretch;
    min-height: 170px;
    overflow: hidden;
    position: relative;
    background: #0A152D;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    min-height: 170px;
    object-fit: cover;
    transition: transform .4s ease;
}

.news-list-item:hover .news-thumb img {
    transform: scale(1.05);
}

.news-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(6, 17, 33, 0.2) 100%);
    pointer-events: none;
}

.news-content {
    padding: 24px 28px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    font-size: 13px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(18, 226, 255, 0.1);
    border: 1px solid rgba(18, 226, 255, 0.22);
    color: var(--cyan);
    font-size: 12px;
    font-weight: 600;
}

.badge-solid {
    background: linear-gradient(135deg, rgba(18, 226, 255, 0.24), rgba(43, 111, 255, 0.22));
    color: var(--light);
}

.news-meta time {
    color: var(--muted);
}

.news-content h3 {
    color: var(--light);
    font-size: 19px;
    line-height: 1.5;
    font-weight: 600;
    margin-bottom: 7px;
}

.news-list-item:hover .news-content h3 {
    color: #fff;
}

.news-content .summary {
    color: var(--text);
    font-size: 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.arrow-text {
    display: none;
    position: absolute;
    right: 26px;
    top: 28px;
    font-size: 24px;
    color: var(--cyan);
}

.news-empty {
    text-align: center;
    padding: 60px 30px;
    background: var(--panel);
    border: 1px dashed rgba(255, 255, 255, 0.14);
    border-radius: 24px;
    color: var(--muted);
    font-size: 16px;
}

/* FAQ */
.faq-section {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

.faq-wrap {
    max-width: 920px;
    margin: 0 auto;
}

.faq-sub-note {
    margin-top: 24px;
    text-align: center;
    padding: 22px 30px;
    border-radius: 18px;
    background: var(--panel);
    border: 1px solid var(--stroke);
    color: var(--text);
}

.faq-sub-note a {
    color: var(--cyan);
    font-weight: 600;
}

.faq-sub-note a:hover {
    color: #fff;
}

.faq-item {
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.11);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    margin-bottom: 14px;
    transition: border-color .25s ease, background .25s ease;
}

.faq-item[open] {
    border-color: rgba(18, 226, 255, 0.24);
    background: rgba(255, 255, 255, 0.07);
}

.faq-item > summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    color: var(--light);
    font-size: 18px;
    font-weight: 600;
    padding: 24px 26px;
    user-select: none;
    transition: color .2s ease;
}

.faq-item > summary::-webkit-details-marker {
    display: none;
}

.faq-item > summary:hover {
    color: #fff;
}

.faq-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    position: relative;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: #fff;
    border-radius: 2px;
}

.faq-icon::before {
    width: 12px;
    height: 2px;
}

.faq-icon::after {
    width: 2px;
    height: 12px;
}

.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: rgba(18, 226, 255, 0.16);
    border-color: var(--cyan);
}

.faq-answer {
    padding: 4px 28px 28px 28px;
    color: var(--text);
    line-height: 1.9;
    font-size: 16px;
}

.faq-answer p {
    margin-top: 6px;
}

.footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: clamp(48px, 6vw, 84px);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.9fr;
    gap: 40px;
    padding-bottom: 50px;
}

.footer .brand {
    margin-bottom: 16px;
}

.footer-brand-desc {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    max-width: 320px;
}

.footer h3 {
    color: var(--light);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: .06em;
}

.footer-links li + li {
    margin-top: 10px;
}

.footer-links a {
    color: var(--text);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.footer-links a::before {
    content: "";
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--cyan);
    opacity: 0.7;
}

.footer-links a:hover {
    color: #fff;
}

.footer-note p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: 22px 0;
    color: rgba(255, 255, 255, 0.32);
    font-size: 13px;
    text-align: center;
}

@media (max-width: 1024px) {
    .feature-wall {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .hero-facts {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .feature-card {
        min-height: 260px;
    }

    .feature-card.span-row {
        grid-row: span 1;
    }

    .claim-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .news-list-item {
        grid-template-columns: 1fr;
    }

    .news-thumb img {
        max-height: 190px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .footer h3 {
        margin-bottom: 12px;
    }

    .faq-item > summary {
        font-size: 16px;
        padding: 20px;
    }

    .countdown-inner {
        justify-content: center;
        gap: 10px 18px;
        padding: 8px 0;
    }
}

@media (max-width: 520px) {
    .brand-text {
        font-size: 18px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .hero-content {
        padding-top: 36px;
        padding-bottom: 50px;
    }

    .hero-actions,
    .claim-form .btn {
        width: 100%;
    }

    .hero-actions .btn,
    .claim-form .btn {
        justify-content: center;
    }

    .feature-card-content {
        padding: 24px 20px;
    }

    .news-content {
        padding: 20px;
    }

    .news-content h3 {
        font-size: 17px;
    }

    .btn {
        padding: 0 24px;
        font-size: 14px;
    }
}

/* Nav mobile close mask */

/* roulang page: article */
:root {
  --bg-deep: #030812;
  --bg-main: #061121;
  --bg-card: rgba(255, 255, 255, 0.065);
  --bg-card-hover: rgba(255, 255, 255, 0.09);
  --bg-input: #0a1428;
  --border-light: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.22);
  --blue-main: #2B6FFF;
  --cyan-glow: #12E2FF;
  --green-ok: #4AE3A0;
  --gold-accent: #F7C75D;
  --text-white: #F4F9FF;
  --text-body: #C6D4EA;
  --text-weak: #7F91AF;
  --radius-lg: 18px;
  --radius-sm: 10px;
  --radius-pill: 100px;
  --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 0 0 1px rgba(13, 216, 255, 0.16), 0 10px 36px rgba(32, 105, 255, 0.35);
  --space-xl: clamp(72px, 9vw, 120px);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 78px;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(4, 11, 24, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 26px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(18, 226, 255, 0.15), rgba(43, 111, 255, 0.15));
  border: 1px solid rgba(18, 226, 255, 0.25);
}
.brand-logo svg {
  width: 22px;
  height: 22px;
  fill: var(--cyan-glow);
}
.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.main-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
}
.main-nav a {
  font-size: 15px;
  color: var(--text-body);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
  letter-spacing: 0.3px;
}
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px rgba(18, 226, 255, 0.55);
  transition: width 0.25s ease;
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after,
.main-nav a.active::after { width: 22px; }
.main-nav a.active { color: #fff; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #0ED8FF, #2B6FFF);
  color: #fff;
  border: none;
  box-shadow: 0 0 0 1px rgba(18, 226, 255, 0.18), 0 10px 30px rgba(32, 105, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(18, 226, 255, 0.25), 0 14px 40px rgba(32, 105, 255, 0.5);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 0 1px rgba(18, 226, 255, 0.12), 0 4px 14px rgba(32, 105, 255, 0.28);
}
.btn-primary:focus-visible,
.btn-ghost:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 3px;
}
.btn-ghost {
  background: transparent;
  color: var(--text-body);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.btn-ghost:hover {
  color: #fff;
  border-color: var(--cyan-glow);
  background: rgba(18, 226, 255, 0.08);
  box-shadow: 0 0 20px rgba(18, 226, 255, 0.12);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn-small {
  height: 42px;
  padding: 0 22px;
  font-size: 14px;
}
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan-glow);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease, gap 0.2s ease;
}
.btn-link:hover { color: #fff; gap: 10px; }
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  color: var(--text-body);
  background: rgba(255, 255, 255, 0.04);
}
.nav-burger svg { width: 22px; height: 22px; }
.nav-burger:hover {
  color: #fff;
  border-color: var(--cyan-glow);
}

.article-page-main { padding-top: 78px; background: var(--bg-main); }

.breadcrumb-section { padding: 26px 0 10px; background: transparent; position: relative; z-index: 1; }
.breadcrumb-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 13px;
  letter-spacing: 0.4px;
  color: var(--text-weak);
  gap: 6px;
}
.breadcrumb-row a { color: var(--text-weak); transition: color 0.2s ease; }
.breadcrumb-row a:hover { color: var(--cyan-glow); }
.breadcrumb-row .sep { opacity: 0.5; }

.article-top-spacer { height: 24px; }

.article-hero-section {
  position: relative;
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.article-hero-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 74px 32px 64px;
  text-align: center;
}
.article-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(18, 226, 255, 0.08);
  border: 1px solid rgba(18, 226, 255, 0.22);
  color: var(--cyan-glow);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.article-hero-title {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text-white);
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px 28px;
  font-size: 14px;
  color: var(--text-weak);
}
.article-meta-row span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta-row .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
}

.article-content-section {
  padding: 56px 0 0;
}
.article-content-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 32px;
}
.article-body {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: 22px;
  padding: clamp(28px, 4vw, 52px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.26);
}
.article-body-entry {
  font-size: 18px;
  line-height: 1.9;
  color: var(--text-body);
}
.article-body-entry p { margin-bottom: 1.6em; }
.article-body-entry h2 {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-white);
  margin: 2em 0 0.8em;
  letter-spacing: -0.01em;
}
.article-body-entry h3 {
  font-size: clamp(19px, 2vw, 22px);
  font-weight: 650;
  color: var(--text-white);
  margin: 1.8em 0 0.7em;
}
.article-body-entry ul,
.article-body-entry ol {
  margin: 0 0 1.6em 1.2em;
}
.article-body-entry ul { list-style: disc; }
.article-body-entry ol { list-style: decimal; }
.article-body-entry li { margin-bottom: 0.5em; }
.article-body-entry blockquote {
  border-left: 3px solid var(--cyan-glow);
  background: rgba(18, 226, 255, 0.05);
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.8em 0;
  color: var(--text-body);
  font-style: normal;
}
.article-body-entry table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 15px;
}
.article-body-entry th {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-white);
  text-align: left;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  font-weight: 600;
}
.article-body-entry td {
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  vertical-align: top;
}
.article-body-entry a { color: var(--cyan-glow); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.article-body-entry a:hover { border-bottom-color: var(--cyan-glow); }
.article-body-entry code {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 0.9em;
  color: var(--cyan-glow);
}
.article-body-entry img {
  border-radius: 14px;
  margin: 1.4em 0;
}

.article-not-found {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: 100px 32px;
}
.not-found-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 22px;
  padding: 64px 32px;
}
.not-found-card h2 {
  color: var(--text-white);
  font-size: 26px;
  margin-bottom: 14px;
}
.not-found-card p {
  color: var(--text-weak);
  margin-bottom: 30px;
}

.article-bottom-nav {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.article-bottom-nav::before {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 30px;
}
.back-home-link { color: var(--text-weak); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: color 0.2s ease; }
.back-home-link:hover { color: var(--cyan-glow); }

.related-section { padding: clamp(72px, 8vw, 100px) 0 0; }
.related-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 2px;
  color: var(--cyan-glow);
  text-transform: uppercase;
  background: rgba(18, 226, 255, 0.07);
  border: 1px solid rgba(18, 226, 255, 0.18);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  margin-bottom: 18px;
}
.related-title {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.related-link { color: var(--text-weak); font-size: 14px; transition: color 0.2s ease; }
.related-link:hover { color: var(--cyan-glow); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.related-card {
  display: flex;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 12px 14px;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.related-card:hover {
  border-color: rgba(18, 226, 255, 0.28);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.32);
}
.related-thumb {
  width: 130px;
  height: 92px;
  min-width: 130px;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(18, 226, 255, 0.1), rgba(43, 111, 255, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}
.related-card-body h3 { font-size: 17px; font-weight: 600; line-height: 1.45; color: var(--text-white); transition: color 0.2s; }
.related-card-body h3 a:hover { color: var(--cyan-glow); }
.related-card-body p { font-size: 13px; color: var(--text-weak); line-height: 1.6; }

.cta-section { padding: clamp(72px, 8vw, 100px) 0 20px; }
.cta-card {
  background:
    linear-gradient(rgba(4, 10, 24, 0.84), rgba(4, 10, 24, 0.88)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border: 1px solid var(--border-light);
  border-radius: 28px;
  padding: clamp(36px, 5vw, 64px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(18, 226, 255, 0.16), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.cta-card-inner {
  max-width: 620px;
  position: relative;
  z-index: 1;
}
.cta-card h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 16px;
}
.cta-card p {
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 520px;
}
.cta-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.cta-buttons a { min-height: 50px; }

.footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  margin-top: 40px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 50px;
  padding: 64px 0 44px;
}
.footer-brand-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.9;
  margin-top: 14px;
  max-width: 340px;
}
.footer-links h3,
.footer-note h3 {
  font-size: 15px;
  font-weight: 650;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links ul { display: grid; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-weak);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--cyan-glow); }
.footer-note p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 24px 0;
  font-size: 13px;
  color: var(--text-weak);
  text-align: center;
}

/* Foundation overrides */
.accordion-item { background: transparent; border: none; border-bottom: 1px solid rgba(255,255,255,0.08); margin: 0; }
.accordion-item:last-child { border-bottom: none; }
.accordion-title {
  background: transparent;
  color: var(--text-white);
  font-size: 18px;
  border: none;
  padding: 22px 44px 22px 0;
  position: relative;
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.2s ease;
}
.accordion-title::before {
  content: '+';
  position: absolute;
  right: 4px;
  top: 22px;
  color: var(--cyan-glow);
  font-size: 24px;
  font-weight: 400;
  transition: transform 0.2s ease;
  text-align: center;
  width: 24px;
  height: 24px;
  line-height: 24px;
}
.accordion-title:hover { color: var(--cyan-glow); background: transparent; }
.accordion-item.is-active > .accordion-title::before { transform: rotate(45deg); }
.accordion-content {
  background: rgba(255, 255, 255, 0.02);
  border-left: none;
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.9;
  padding: 0 42px 26px 0;
  border-bottom: none;
}

@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-actions .btn-ghost { display: none; }
  .nav-burger { display: inline-flex; }
  .main-nav.open {
    display: flex;
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: rgba(4, 11, 24, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 28px 32px;
    justify-content: center;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  }
  .main-nav.open ul {
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
  }
  .main-nav.open a {
    font-size: 18px;
    padding: 14px 0;
    display: block;
    text-align: center;
    width: 100%;
  }
  .main-nav.open a::after { display: none; }
  .main-nav.open a.active {
    color: var(--cyan-glow);
    background: rgba(18, 226, 255, 0.06);
    border-radius: 10px;
    padding: 14px 18px;
  }
  .brand-text { font-size: 17px; }
  .footer-inner { gap: 36px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .site-header { height: 66px; }
  .article-page-main { padding-top: 66px; }
  .article-hero-inner { padding: 44px 20px 36px; }
  .article-hero-title { font-size: 28px; line-height: 1.35; }
  .article-content-inner { padding: 0 20px; }
  .article-body { padding: 24px 20px; border-radius: 16px; }
  .article-body-entry { font-size: 17px; line-height: 1.9; padding: 0 2px; }
  .footer-inner { grid-template-columns: 1fr; gap: 34px; padding: 48px 0 32px; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-section { padding-top: 60px; }
  .cta-card { padding: 32px 22px; border-radius: 20px; }
  .cta-buttons .btn { flex: 1 1 100%; }
  .main-nav.open { top: 66px; }
  .article-bottom-nav { padding: 28px 20px 0; }
  .article-content-inner, .related-head { padding-left: 0; padding-right: 0; }
  .related-card { flex-direction: row; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-text { font-size: 15px; }
  .brand-logo { width: 30px; height: 30px; }
  .brand-logo svg { width: 20px; height: 20px; }
  .article-hero-inner { padding: 40px 14px 32px; }
  .article-hero-tag { font-size: 12px; padding: 4px 12px; }
  .article-meta-row { gap: 10px 16px; }
  .article-body { padding: 20px 14px; }
  .article-body-entry { font-size: 17px; }
  .related-card { flex-direction: column; }
  .related-thumb { width: 100%; height: 150px; min-width: 0; }
  .link-group { flex-wrap: wrap; gap: 10px; }
  .cta-buttons .btn { padding: 0 20px; font-size: 14px; }
  .breadcrumb-section { padding-top: 18px; }
  .breadcrumb-row { font-size: 12px; }
}

/* roulang page: category1 */
:root{
  --page-bg:#061121;
  --page-deep:#030812;
  --brand-blue:#2B6FFF;
  --cyan:#12E2FF;
  --green:#4AE3A0;
  --gold:#F7C75D;
  --white:#F4F9FF;
  --body-text:#C6D4EA;
  --weak:#7F91AF;
  --card-bg:rgba(255,255,255,.06);
  --card-bg-soft:rgba(255,255,255,.055);
  --card-highlight:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.12);
  --line-light:rgba(255,255,255,.18);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-full:999px;
  --shadow-card:0 20px 50px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(13,216,255,.16),0 10px 36px rgba(32,105,255,.35);
  --section-space:clamp(80px,10vw,130px);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--page-bg);
  color:var(--body-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul{list-style:none}
.container,.grid-container{
  max-width:1240px;
  width:calc(100% - 48px);
  margin-left:auto;
  margin-right:auto;
}
.grid-container{padding-left:0;padding-right:0}
.grid-x > .cell{padding-left:14px;padding-right:14px}
h1,h2,h3,h4{color:var(--white);line-height:1.3;font-weight:650}
p{color:var(--body-text)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ===== buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:52px;
  padding:0 32px;
  border-radius:var(--radius-full);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
  background:transparent;
  border:1px solid transparent;
  cursor:pointer;
}
.btn:active{transform:translateY(1px);box-shadow:0 6px 20px rgba(32,105,255,.25)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#0ED8FF,#2B6FFF);
  box-shadow:0 0 0 1px rgba(13,216,255,.16),0 10px 36px rgba(32,105,255,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 44px rgba(32,105,255,.5),0 0 0 1px rgba(13,216,255,.28);
}
.btn-secondary{
  border-color:rgba(255,255,255,.28);
  color:var(--white);
}
.btn-secondary:hover{
  border-color:var(--cyan);
  color:#fff;
  background:rgba(16,220,255,.05);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.16);
  color:var(--white);
}
.btn-ghost:hover{
  border-color:rgba(16,220,255,.7);
  color:#fff;
  background:rgba(16,220,255,.06);
}
.btn-small{min-height:42px;padding:0 22px;font-size:14px}

/* ===== header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:78px;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease,box-shadow .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(5,15,32,.82);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 18px 46px rgba(0,0,0,.24);
}
.header-inner{
  height:78px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--white);
  font-weight:700;
  letter-spacing:.02em;
}
.brand-logo{
  width:32px;height:32px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:rgba(18,226,255,.1);
  border:1px solid rgba(18,226,255,.22);
}
.brand-logo svg{width:21px;height:21px}
.brand-logo svg path{fill:var(--cyan)}
.brand-text{font-size:18px;white-space:nowrap}

.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:34px}
.main-nav a{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--body-text);
  padding:10px 2px;
  transition:color .25s ease;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  transform:translateX(-50%);
  background:linear-gradient(90deg,var(--cyan),var(--brand-blue));
  box-shadow:0 0 12px rgba(18,226,255,.65);
  transition:width .25s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:22px}
.main-nav a.active{color:#fff}
.main-nav a.active::after{width:22px}
.nav-burger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid rgba(255,255,255,.14);
  border-radius:12px;
  color:#fff;
  cursor:pointer;
}
.nav-burger svg{width:22px;height:22px}
@media (max-width:1023.98px){
  .site-header,.header-inner{height:64px}
  .site-header{background:rgba(5,15,32,.78);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06)}
  .header-inner{justify-content:space-between}
  .header-actions .btn{display:none}
  .nav-burger{display:inline-flex}
  .brand-text{font-size:16px}
  .main-nav{
    position:fixed;
    inset:0;
    z-index:200;
    background:rgba(4,10,24,.95);
    backdrop-filter:blur(20px);
    margin:0;
    opacity:0;
    visibility:hidden;
    transition:opacity .3s ease,visibility .3s ease;
    padding:80px 36px 40px;
  }
  .site-header.mobile-open .main-nav{
    opacity:1;
    visibility:visible;
  }
  .main-nav ul{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .main-nav a{
    font-size:28px;
    padding:14px 0;
    color:var(--body-text);
  }
  .nav-burger{
    margin-left:auto;
    z-index:300;
    position:relative;
  }
}
@media (max-width:520px){
  .brand-logo{width:29px;height:29px}
  .brand-text{font-size:15px}
}

/* ===== page hero ===== */
.page-hero{
  position:relative;
  min-height:calc(100vh - 64px);
  padding:165px 0 88px;
  display:flex;
  align-items:center;
  background:
    linear-gradient(115deg,rgba(4,14,32,.92) 0%,rgba(6,20,42,.72) 46%,rgba(3,10,24,.35) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  background-color:#040c1c;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:560px;height:560px;
  right:-160px;top:20%;
  background:radial-gradient(circle,rgba(32,111,255,.28),rgba(4,15,35,0) 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 16px;
  border-radius:100px;
  background:rgba(18,226,255,.09);
  border:1px solid rgba(18,226,255,.2);
  font-size:13px;
  color:var(--cyan);
  margin-bottom:24px;
}
.hero-kicker i{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 12px rgba(74,227,160,.7);
  display:inline-block;
}
.page-hero h1{
  max-width:900px;
  font-size:clamp(40px,6vw,66px);
  line-height:1.22;
  letter-spacing:-.02em;
  color:#fff;
  font-weight:700;
}
.page-hero h1 span{
  background:linear-gradient(100deg,#12E2FF,#2B6FFF 72%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}
.hero-intro{
  max-width:680px;
  margin:28px 0 0;
  font-size:clamp(16px,1.6vw,18px);
  color:var(--body-text);
  line-height:1.9;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:36px;
}
.hero-note{
  margin-top:22px;
  font-size:14px;
  color:var(--weak);
}
.hero-note a{color:var(--cyan)}
@media (max-width:768px){
  .page-hero{padding:140px 0 70px}
  .hero-actions .btn{width:100%}
}

/* ===== section ===== */
.section{
  padding:var(--section-space) 0;
}
.section-light{background:var(--page-deep)}
.section-head{
  margin-bottom:clamp(40px,5vw,64px);
  max-width:760px;
}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{
  font-size:clamp(30px,4vw,44px);
  line-height:1.28;
  margin-top:12px;
}
.section-desc{
  font-size:16px;
  color:var(--weak);
  margin-top:14px;
  line-height:1.8;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--cyan);
  font-weight:600;
  letter-spacing:.05em;
}
.eyebrow::before{
  content:"";
  width:24px;height:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);
  border-radius:2px;
}

/* ===== abstract strip ===== */
.summary-strip{
  background:linear-gradient(180deg,transparent,rgba(3,8,18,.6));
}
.summary-card{
  background:
    linear-gradient(135deg,rgba(255,255,255,.065),rgba(255,255,255,.035));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(30px,4vw,48px);
  box-shadow:var(--shadow-card);
}
.summary-card h2{
  font-size:clamp(22px,3vw,32px);
  line-height:1.4;
}
.summary-card > p{
  margin-top:18px;
  font-size:16px;
  color:var(--body-text);
  line-height:1.9;
}
.summary-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.summary-tags span{
  font-size:13px;
  color:#d4e2f4;
  padding:7px 14px;
  border-radius:100px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
}

/* ===== steps ===== */
.step-card{
  height:100%;
  background:linear-gradient(150deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 27px;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  position:relative;
  overflow:hidden;
}
.step-card::before{
  content:"";
  position:absolute;
  right:-44px;top:-44px;
  width:120px;height:120px;
  border-radius:50%;
  background:rgba(43,111,255,.13);
  filter:blur(20px);
}
.step-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,255,.28);
  box-shadow:var(--glow);
}
.step-no{
  font-size:15px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:.14em;
}
.step-card h3{
  margin:16px 0 12px;
  font-size:20px;
  font-weight:600;
}
.step-card p{font-size:15px;color:var(--body-text)}
.step-line-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(18,226,255,.1);
  border:1px solid rgba(18,226,255,.18);
  color:var(--cyan);
  margin-bottom:22px;
}
.step-line-icon svg{width:24px;height:24px}
.grid-columns{gap:0}

/* ===== card group ===== */
.info-group{background:radial-gradient(circle at 82% 18%,rgba(43,111,255,.14),transparent 34%),var(--page-deep)}
.event-card{
  height:100%;
  background:var(--card-bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-card);
}
.event-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,255,.2);
  box-shadow:var(--glow);
}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,#0a1e3d,#0a1428);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.event-card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(4,12,26,0) 45%,rgba(4,12,26,.45) 100%);
  pointer-events:none;
}
.card-tag{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  color:#fff;
  font-size:13px;
  padding:6px 14px;
  border-radius:100px;
  background:rgba(5,15,32,.5);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.18);
}
.card-tag.is-gold{color:var(--gold)}
.card-body{
  padding:26px 26px 28px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-body h3{font-size:20px;font-weight:620;line-height:1.45}
.card-body > p{
  margin-top:12px;
  font-size:15px;
  color:var(--body-text);
  line-height:1.8;
  flex:1;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-top:18px;
  font-size:14px;
  font-weight:600;
  color:var(--cyan);
  transition:gap .2s ease,color .2s ease;
}
.card-link:hover{gap:12px;color:#fff}
.event-feature-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:320px;
  padding:36px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:14px;
  color:#fff;
  background:url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
}
.event-feature-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(3,8,20,.15),rgba(3,8,20,.88));
}
.event-feature-card > *{position:relative;z-index:2}
.event-feature-card h3{font-size:28px}
.event-feature-card p{color:#d4e2f4;max-width:420px;line-height:1.8}
.event-feature-card .btn{align-self:flex-start;margin-top:8px}
@media(max-width:768px){
  .event-feature-card{min-height:280px;padding:26px}
}

/* ===== use scene ===== */
.scene-split{
  background:linear-gradient(180deg,#061121,var(--page-deep));
}
.scene-wrap{
  background:rgba(255,255,255,.052);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.scene-media img{width:100%;height:100%;object-fit:cover;min-height:280px}
.scene-content{padding:clamp(30px,5vw,58px)}
.scene-content h3{font-size:clamp(22px,3vw,29px);line-height:1.4}
.scene-content .section-desc{margin-top:14px}
.feature-list{display:grid;gap:12px;margin-top:24px}
.feature-list li{
  position:relative;
  padding-left:30px;
  color:var(--body-text);
  font-size:15px;
  line-height:1.7;
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:17px;height:17px;
  border-radius:50%;
  background:rgba(74,227,160,.13);
  border:1px solid rgba(74,227,160,.25);
}
.feature-list li::after{
  content:"";
  position:absolute;
  left:5px;top:12px;
  width:7px;height:5px;
  border-left:2px solid var(--green);
  border-bottom:2px solid var(--green);
  transform:rotate(-45deg);
}

/* ===== cta ===== */
.cta-section{background:linear-gradient(180deg,var(--page-deep),#07172f)}
.cta-card{
  position:relative;
  border-radius:26px;
  padding:clamp(36px,6vw,72px);
  border:1px solid rgba(255,255,255,.14);
  background:
    radial-gradient(circle at 20% 0%,rgba(18,226,255,.14),transparent 38%),
    radial-gradient(circle at 90% 100%,rgba(43,111,255,.2),transparent 46%),
    linear-gradient(135deg,rgba(10,25,52,.86),rgba(6,17,35,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover;
  box-shadow:var(--glow);
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  top:-90px;right:-90px;
  width:240px;height:240px;
  border-radius:50%;
  border:60px solid rgba(18,226,255,.05);
}
.cta-card h2{
  font-size:clamp(26px,4vw,40px);
  line-height:1.35;
  margin-bottom:14px;
  max-width:680px;
}
.cta-card > p{
  max-width:620px;
  color:var(--body-text);
  line-height:1.9;
}
.cta-subscribe{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  max-width:680px;
}
.input-field{
  height:52px;
  flex:1 1 260px;
  background:rgba(5,13,26,.82);
  border:1px solid rgba(255,255,255,.16);
  color:var(--white);
  padding:0 20px;
  font-size:15px;
  border-radius:100px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input-field::placeholder{color:#71829f}
.input-field:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 5px rgba(18,226,255,.08);
}
.cta-tip{width:100%;font-size:13px;color:var(--weak);margin-top:8px}
@media(max-width:768px){
  .cta-subscribe .btn{width:100%}
}

/* ===== faq ===== */
.faq-shell{
  max-width:1000px;
  margin:0 auto;
}
.faq-title-wrap{text-align:center;margin-bottom:48px}
.faq-title-wrap h2{font-size:clamp(30px,4vw,42px)}
.faq-item{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--card-bg-soft);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{
  border-color:rgba(18,226,255,.18);
  background:rgba(255,255,255,.08);
  box-shadow:var(--glow);
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:23px 28px;
  color:#fff;
  font-size:18px;
  font-weight:600;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  flex:0 0 28px;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2312E2FF' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-size:16px;
  background-position:center;
  background-repeat:no-repeat;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);background-color:rgba(18,226,255,.22)}
.faq-item .faq-answer{
  padding:0 28px 26px;
  color:var(--body-text);
  font-size:16px;
  line-height:1.9;
}
.faq-item .faq-answer p{margin-bottom:12px}
.faq-item .faq-answer p:last-child{margin-bottom:0}
.faq-extra{
  text-align:center;
  margin-top:38px;
  color:var(--weak);
  font-size:15px;
}
.faq-extra a{color:var(--cyan);font-weight:600}
@media(max-width:560px){
  .faq-item summary{font-size:16px;padding:19px 20px}
  .faq-item .faq-answer{padding:0 20px 22px}
}

/* ===== footer ===== */
.footer{
  background:#040a16;
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:70px;
}
.footer-inner{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:44px;
  padding-bottom:54px;
}
.footer .brand{margin-bottom:15px}
.footer-brand-desc{
  margin-top:18px;
  color:var(--weak);
  font-size:14px;
  max-width:360px;
  line-height:1.8;
}
.footer-links h3,.footer-note h3{
  font-size:16px;
  margin-bottom:18px;
  color:#e9f3ff;
  font-weight:600;
}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--weak);font-size:14px;transition:color .2s ease}
.footer-links a:hover{color:var(--cyan)}
.footer-note p{
  color:var(--weak);
  font-size:14px;
  line-height:1.9;
}
.footer-bottom{
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.05);
  color:#5b6c89;
  font-size:14px;
}
@media(max-width:900px){
  .footer-inner{grid-template-columns:1fr;gap:32px}
}

/* roulang page: category2 */
:root{
  --bg-body:#061121;
  --bg-deep:#030812;
  --bg-panel:#0A1428;
  --primary:#2B6FFF;
  --accent:#12E2FF;
  --green:#4AE3A0;
  --gold:#F7C75D;
  --white:#F4F9FF;
  --body:#C6D4EA;
  --muted:#7F91AF;
  --line:rgba(255,255,255,0.12);
  --glass:rgba(255,255,255,0.055);
  --glass-strong:rgba(255,255,255,0.085);
  --radius-card:18px;
  --radius-large:24px;
  --radius-small:10px;
  --shadow-card:0 20px 50px rgba(0,0,0,0.28);
  --shadow-glow:0 0 0 1px rgba(13,216,255,0.16),0 10px 36px rgba(32,105,255,0.35);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --header-h:78px;
  --section-space:clamp(72px,9vw,120px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);background:var(--bg-body);color:var(--body);line-height:1.8;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,figure{margin:0}
ul{list-style:none;padding:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
::selection{background:rgba(18,226,255,.22);color:#fff}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.grid-x{row-gap:24px}
.grid-padding-x>.cell{padding-left:13px;padding-right:13px}
.section{padding:var(--section-space) 0}
.section-label{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid rgba(18,226,255,.24);background:rgba(18,226,255,.08);border-radius:100px;font-size:13px;color:var(--accent);margin-bottom:18px;font-weight:500}
.section-title{font-size:clamp(28px,4vw,44px);color:var(--white);line-height:1.25;font-weight:650;letter-spacing:-.02em;margin-bottom:16px}
.section-desc{max-width:680px;font-size:16px;color:var(--body);line-height:1.8}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 32px;border-radius:100px;font-size:15px;font-weight:600;line-height:1;transition:.22s ease;outline:none;position:relative;white-space:nowrap}
.btn-primary{color:#fff;background:linear-gradient(135deg,#0ED8FF,#2B6FFF);box-shadow:0 0 0 1px rgba(13,216,255,.16),0 10px 36px rgba(32,105,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(13,216,255,.28),0 14px 44px rgba(32,105,255,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(13,216,255,.1),0 6px 20px rgba(32,105,255,.25)}
.btn-ghost{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.25);color:var(--white)}
.btn-ghost:hover{color:#fff;border-color:var(--accent);background:rgba(18,226,255,.1)}
.btn-ghost:active{transform:translateY(1px)}
.btn-small{height:44px;padding:0 22px;font-size:14px}
.btn-lg{height:54px;padding:0 36px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* Header */
.site-header{position:sticky;top:0;left:0;right:0;width:100%;z-index:80;height:var(--header-h);display:flex;align-items:center;background:rgba(3,8,18,.35);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07);transition:.3s ease}
.site-header.scrolled{background:rgba(3,8,18,.78);border-bottom-color:rgba(255,255,255,.1);box-shadow:0 12px 40px rgba(0,0,0,.24)}
.header-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-logo{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:9px;background:linear-gradient(145deg,rgba(18,226,255,.22),rgba(43,111,255,.25));border:1px solid rgba(18,226,255,.3);color:var(--accent)}
.brand-logo svg{width:18px;height:18px;fill:currentColor}
.brand-text{font-size:19px;font-weight:650;color:var(--white);letter-spacing:.01em}
.main-nav ul{display:flex;align-items:center;gap:38px;margin:0}
.main-nav a{position:relative;display:block;padding:10px 0;font-size:15px;color:var(--body);transition:.25s ease}
.main-nav a::after{content:"";position:absolute;left:0;bottom:4px;width:0;height:2px;background:var(--accent);border-radius:2px;box-shadow:0 0 12px rgba(18,226,255,.7);transition:width .3s ease}
.main-nav a:hover{color:var(--white)}
.main-nav a:hover::after{width:16px}
.main-nav a.active{color:#fff}
.main-nav a.active::after{width:22px}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-burger{display:none;width:46px;height:46px;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.15);border-radius:12px;background:rgba(255,255,255,.04);color:#fff;transition:.2s ease}
.nav-burger svg{width:22px;height:22px}
.nav-burger:hover{border-color:var(--accent);color:var(--accent)}
.nav-burger:focus-visible,.main-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}

/* Page hero */
.page-hero{position:relative;display:flex;align-items:center;min-height:74vh;padding:96px 0 84px;background:linear-gradient(180deg,rgba(3,8,18,.78) 0%,rgba(6,17,33,.62) 40%,rgba(6,17,33,.92) 100%),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;overflow:hidden}
.page-hero::after{content:"";position:absolute;width:560px;height:560px;right:-140px;bottom:-160px;background:radial-gradient(circle,rgba(43,111,255,.4),rgba(18,226,255,.06) 50%,transparent 70%);filter:blur(20px);z-index:1;pointer-events:none}
.hero-content{position:relative;z-index:2;max-width:760px}
.hero-pill{display:inline-flex;align-items:center;gap:9px;padding:6px 15px;border:1px solid rgba(18,226,255,.3);background:rgba(18,226,255,.09);border-radius:100px;color:var(--accent);font-size:13px;margin-bottom:22px}
.hero-pill .pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(74,227,160,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(74,227,160,.5)}70%{box-shadow:0 0 0 7px rgba(74,227,160,0)}100%{box-shadow:0 0 0 0 rgba(74,227,160,0)}}
.page-hero h1{font-size:clamp(38px,6vw,64px);line-height:1.2;color:var(--white);font-weight:700;margin:0 0 20px;letter-spacing:-.03em}
.page-hero h1 .gradient-text{background:linear-gradient(120deg,#fff,#8CEBFF 45%,var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{max-width:680px;font-size:18px;line-height:1.9;color:#D7E1F2;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}

/* Login service strip */
.login-service-strip{background:rgba(3,8,18,.42);border-bottom:1px solid rgba(255,255,255,.08);border-top:1px solid rgba(255,255,255,.06);padding:0}
.login-service-strip .grid-x{align-items:stretch}
.service-mini{display:flex;align-items:center;gap:14px;padding:28px 18px;border-left:1px solid rgba(255,255,255,.07)}
.service-mini:last-child{border-right:1px solid rgba(255,255,255,.07)}
.service-icon{width:40px;height:40px;flex:0 0 40px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:rgba(18,226,255,.1);color:var(--accent);border:1px solid rgba(18,226,255,.16)}
.service-icon svg{width:20px;height:20px}
.service-mini b{display:block;font-size:15px;color:var(--white);font-weight:600;margin-bottom:2px}
.service-mini span{font-size:13px;color:var(--muted)}

/* Glass Cards */
.glass-card{background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.035));border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;position:relative;overflow:hidden;transition:.25s ease;box-shadow:var(--shadow-card)}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(18,226,255,.28);box-shadow:var(--shadow-glow)}
.glass-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent)}
.card-icon{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,rgba(18,226,255,.2),rgba(43,111,255,.2));color:#fff;border:1px solid rgba(18,226,255,.28);margin-bottom:20px}
.card-icon svg{width:22px;height:22px}
.glass-card h3{font-size:19px;color:var(--white);font-weight:600;margin-bottom:10px;line-height:1.5}
.glass-card p{font-size:15px;color:var(--body);line-height:1.85}
.card-note{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;color:var(--muted)}
.card-note svg{width:15px;height:15px}
.mt-1{margin-top:48px}

/* Login prep */
.login-prep-list{display:flex;flex-direction:column;gap:16px;margin-top:34px}
.login-prep-item{display:flex;gap:16px;align-items:flex-start;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:18px 20px;transition:.2s ease}
.login-prep-item:hover{border-color:rgba(18,226,255,.24);background:rgba(18,226,255,.06)}
.login-prep-index{flex:0 0 42px;width:42px;height:42px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--accent);border-radius:12px;background:rgba(18,226,255,.1);border:1px solid rgba(18,226,255,.18)}
.login-prep-item h4{font-size:17px;color:var(--white);line-height:1.5;margin-bottom:4px}
.login-prep-item p{font-size:15px;color:var(--muted);line-height:1.75}

/* Step timeline */
.step-flow{border-top:1px solid rgba(255,255,255,.1);margin-top:38px}
.step-item{display:grid;grid-template-columns:90px 1fr 120px;gap:20px;position:relative;padding:28px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.step-item::before{content:"";position:absolute;left:44px;top:30px;width:1px;height:calc(100% - 24px);background:rgba(18,226,255,.16)}
.step-item:last-child::before{display:none}
.step-no{color:var(--accent);font-size:15px;font-weight:700;letter-spacing:.05em;padding-top:6px}
.step-main h3{font-size:20px;color:var(--white);font-weight:600;margin-bottom:8px}
.step-main p{font-size:15px;color:var(--body);line-height:1.8;max-width:700px}
.step-badge{align-self:center;justify-self:end;display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border-radius:100px;background:rgba(74,227,160,.1);border:1px solid rgba(74,227,160,.22);color:var(--green);font-size:13px}
.step-badge svg{width:15px;height:15px}

/* Media row */
.media-row{display:grid;grid-template-columns:0.92fr 1.08fr;gap:clamp(24px,4vw,56px);align-items:center}
.media-visual{position:relative;border-radius:24px;overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-glow);background:#0A1428}
.media-visual img{width:100%;height:100%;object-fit:cover;min-height:360px;transition:transform .6s ease}
.media-visual:hover img{transform:scale(1.03)}
.media-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(3,8,18,.7));pointer-events:none}
.media-badge{position:absolute;left:18px;bottom:18px;z-index:2;display:inline-flex;align-items:center;gap:8px;font-size:13px;background:rgba(3,8,18,.6);border:1px solid rgba(255,255,255,.16);padding:9px 16px;border-radius:100px;color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.media-badge svg{width:15px;height:15px;color:var(--green)}
.media-content .section-label{margin-top:4px}
.media-feature{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.media-feature:last-child{border-bottom:none}
.media-feature-icon{flex:0 0 34px;width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:rgba(18,226,255,.1);color:var(--accent)}
.media-feature-icon svg{width:17px;height:17px}
.media-feature h4{font-size:16px;color:var(--white);font-weight:600;line-height:1.5}
.media-feature p{font-size:14px;color:var(--muted);line-height:1.7;margin-top:2px}
.media-note{margin-top:18px;padding:16px 18px;border-radius:14px;background:rgba(247,199,93,.08);border:1px solid rgba(247,199,93,.18);color:var(--gold);font-size:14px;line-height:1.8}
.media-note svg{width:16px;height:16px;display:inline-block;margin-right:6px;vertical-align:-3px}

/* Notice cards */
.notice-grid .glass-card{border-top:2px solid rgba(18,226,255,.36)}
.notice-grid .glass-card.warn{border-top-color:rgba(247,199,93,.4)}
.notice-grid .glass-card.danger{border-top-color:rgba(255,120,120,.42)}
.notice-badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;padding:3px 10px;border-radius:100px;background:rgba(255,255,255,.08);color:var(--muted);margin-bottom:14px;letter-spacing:.05em}
.notice-tag{position:absolute;top:22px;right:22px;font-size:12px;font-weight:600;color:var(--gold)}

/* FAQ */
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.11);border-radius:18px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:rgba(18,226,255,.32)}
.faq-btn{width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;text-align:left;padding:22px 24px;color:var(--white);font-size:18px;font-weight:600;line-height:1.5}
.faq-btn .faq-icon{flex:0 0 26px;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid rgba(255,255,255,.18);color:var(--accent);transition:.2s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--accent);background:rgba(18,226,255,.12)}
.faq-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-item.open .faq-body{grid-template-rows:1fr}
.faq-answer{overflow:hidden;min-height:0;padding:0 24px;color:var(--body);font-size:16px;line-height:1.95}
.faq-item.open .faq-answer{padding-bottom:26px}
.faq-bottom{margin-top:26px;text-align:center;color:var(--muted);font-size:15px}
.faq-bottom a{color:var(--accent);font-weight:500}
.faq-bottom a:hover{text-decoration:underline}

/* CTA */
.cta-panel{position:relative;border-radius:28px;overflow:hidden;padding:clamp(44px,6vw,74px);background:linear-gradient(140deg,rgba(18,226,255,.16),rgba(43,111,255,.16) 50%,rgba(3,8,18,.4)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border:1px solid rgba(255,255,255,.16);box-shadow:0 30px 90px rgba(0,0,0,.35);display:flex;align-items:center}
.cta-inner{position:relative;z-index:2;width:100%;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-title{font-size:clamp(26px,4vw,42px);color:#fff;font-weight:650;line-height:1.3;margin-bottom:10px}
.cta-desc{color:rgba(220,233,255,.9);font-size:16px;line-height:1.8;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:14px;font-size:13px;color:rgba(220,233,255,.65)}

/* Footer */
.footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);padding-top:66px}
.footer-inner{display:grid;grid-template-columns:1.15fr .8fr 1fr;gap:34px;padding-bottom:42px}
.footer .brand-text{font-size:20px}
.footer-brand-desc{font-size:14px;color:var(--muted);line-height:1.9;margin-top:16px;max-width:340px}
.footer-links h3,.footer-note h3{font-size:15px;color:var(--white);margin-bottom:14px;font-weight:600}
.footer-links ul{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:14px;color:var(--muted);transition:.2s ease}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-note p{font-size:14px;line-height:1.9;color:var(--muted);max-width:360px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding:20px 0;font-size:13px;color:rgba(127,145,175,.82)}
.footer-bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* Responsive */
@media(max-width:1023px){
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand-desc,.footer-note p{max-width:none}
  .header-actions .btn-ghost{display:none}
  .nav-burger{display:inline-flex}
  .main-nav{position:fixed;inset:0;background:rgba(3,8,18,.94);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);z-index:-1;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s ease}
  .site-header.nav-open .main-nav{opacity:1;visibility:visible;z-index:78}
  .main-nav ul{flex-direction:column;gap:24px;text-align:center}
  .main-nav a{font-size:27px;color:var(--white);padding:10px 16px}
  .main-nav a.active{color:var(--accent)}
  .main-nav a.active::after{display:none}
  .step-item{grid-template-columns:70px 1fr;}
  .step-badge{grid-column:2;justify-self:start}
  .step-item::before{left:34px}
  .media-row{grid-template-columns:1fr}
  .media-visual img{min-height:300px}
}
@media(max-width:767px){
  .footer-inner{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:none}
  .btn{height:48px;padding:0 26px}
  .service-mini{border-left:none;border-right:none;border-bottom:1px solid rgba(255,255,255,.07)}
  .service-mini:first-child{border-top:1px solid rgba(255,255,255,.07)}
  .service-mini,.login-service-strip .cell{width:100%}
  .page-hero h1{font-size:clamp(34px,10vw,48px)}
  .hero-desc{font-size:16px}
  .step-item{grid-template-columns:1fr;padding:22px 0;gap:10px}
  .step-no{padding:0}
  .step-item::before{display:none}
  .media-visual img{min-height:230px}
  .glass-card{padding:24px}
  .footer-bottom .container{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .brand-text{font-size:16px}
  .section{padding:64px 0}
  .hero-actions .btn{width:100%;margin-bottom:6px;height:52px}
  .cta-panel{padding:34px 22px;border-radius:22px}
  .cta-actions .btn{width:100%;height:52px}
  .step-main h3{font-size:18px}
  .faq-btn{font-size:16px;padding:18px 18px}
  .faq-answer{padding:0 18px}
  .faq-item.open .faq-answer{padding-bottom:24px}
}

/* roulang page: category3 */
:root{
    --bg-deep:#030812;
    --bg-main:#061121;
    --bg-soft:#0A1428;
    --primary:#2B6FFF;
    --cyan:#12E2FF;
    --green:#4AE3A0;
    --gold:#F7C75D;
    --white:#F4F9FF;
    --text:#C6D4EA;
    --dim:#7F91AF;
    --line:rgba(255,255,255,.12);
    --glass:rgba(255,255,255,.065);
    --glass-soft:rgba(255,255,255,.055);
    --radius-lg:22px;
    --radius-md:14px;
    --radius-pill:100px;
    --shadow-card:0 20px 50px rgba(0,0,0,.28);
    --shadow-glow:0 0 0 1px rgba(13,216,255,.16),0 10px 36px rgba(32,105,255,.35);
    --space-section:clamp(76px,8vw,118px);
    --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    background:var(--bg-main);
    color:var(--text);
    font-family:var(--font);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:-2;
    pointer-events:none;
    background:
        radial-gradient(circle at 0 10%, rgba(43,111,255,.16), transparent 28%),
        radial-gradient(circle at 95% 2%, rgba(18,226,255,.1), transparent 24%),
        radial-gradient(circle at 80% 78%, rgba(43,111,255,.07), transparent 30%);
}
body::after{
    content:"";
    position:fixed;
    inset:0;
    z-index:-1;
    pointer-events:none;
    background:linear-gradient(180deg, rgba(3,8,18,0) 0%, rgba(3,8,18,.72) 100%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.25;color:var(--white);font-weight:650}
ul{margin:0;padding:0;list-style:none}

.container{max-width:1240px;margin:0 auto;padding:0 clamp(20px,3vw,32px)}
.grid-container{max-width:1240px;padding-left:clamp(20px,3vw,32px);padding-right:clamp(20px,3vw,32px)}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:8px 18px;
    border-radius:var(--radius-pill);
    background:rgba(18,226,255,.08);
    border:1px solid rgba(18,226,255,.18);
    color:var(--cyan);
    font-size:14px;
    font-weight:600;
    letter-spacing:.04em;
    margin-bottom:22px;
}
.eyebrow::before{
    content:"";
    width:7px;height:7px;border-radius:50%;
    background:var(--cyan);
    box-shadow:0 0 0 0 rgba(18,226,255,.55);
    animation:dotPulse 2.4s infinite;
}
@keyframes dotPulse{
    0%,100%{box-shadow:0 0 0 0 rgba(18,226,255,.35)}
    50%{box-shadow:0 0 0 7px rgba(18,226,255,0)}
}

/* Buttons */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    min-height:52px;
    padding:0 34px;
    border-radius:var(--radius-pill);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
    text-align:center;
}
.btn i,.btn span.arrow{font-style:normal;line-height:1}
.btn-primary{
    background:linear-gradient(135deg,#0ED8FF,#2B6FFF);
    color:#041426;
    box-shadow:0 0 0 1px rgba(13,216,255,.16),0 10px 34px rgba(32,105,255,.35);
}
.btn-primary:hover{
    color:#02101F;
    transform:translateY(-2px);
    box-shadow:0 0 0 1px rgba(13,216,255,.28),0 18px 44px rgba(32,105,255,.48);
}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(13,216,255,.16),0 8px 24px rgba(32,105,255,.38)}
.btn-secondary{
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.25);
    color:var(--white);
}
.btn-secondary:hover{
    border-color:rgba(18,226,255,.65);
    background:rgba(18,226,255,.08);
    color:#fff;
    transform:translateY(-2px);
}
.btn-secondary:active{transform:translateY(-1px)}
.btn-ghost{
    background:transparent;
    border:1px solid rgba(255,255,255,.2);
    color:var(--text);
}
.btn-ghost:hover{
    border-color:rgba(18,226,255,.7);
    color:#fff;
    background:rgba(18,226,255,.06);
}
.btn-small{min-height:42px;padding:0 22px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* Header */
.site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:1000;
    background:rgba(5,14,29,.34);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
    background:rgba(4,12,25,.82);
    border-bottom-color:rgba(255,255,255,.09);
    box-shadow:0 12px 34px rgba(0,0,0,.2);
}
.header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:78px;
    gap:20px;
}
.brand{
    display:inline-flex;
    align-items:center;
    gap:11px;
    min-height:44px;
    color:var(--white);
    flex-shrink:0;
}
.brand-logo{
    width:30px;height:30px;
    border-radius:8px;
    display:inline-grid;
    place-items:center;
    background:linear-gradient(135deg,rgba(18,226,255,.2),rgba(43,111,255,.26));
    border:1px solid rgba(18,226,255,.28);
    color:var(--cyan);
}
.brand-logo svg{width:18px;height:18px;fill:currentColor}
.brand-text{
    font-size:18px;
    font-weight:700;
    letter-spacing:.015em;
    color:var(--white);
    white-space:nowrap;
}
.main-nav{
    margin:0 auto 0 auto;
    margin-left:auto;
}
.main-nav ul{
    display:flex;
    align-items:center;
    gap:clamp(20px,3vw,36px);
}
.main-nav a{
    position:relative;
    display:inline-flex;
    align-items:center;
    padding:22px 0 18px;
    color:var(--text);
    font-size:15px;
    font-weight:500;
    letter-spacing:.02em;
    min-height:78px;
    box-sizing:border-box;
}
.main-nav a::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:12px;
    width:0;height:2px;
    margin:0 auto;
    border-radius:2px;
    background:linear-gradient(90deg,transparent,rgba(18,226,255,.95),transparent);
    opacity:.75;
    transition:width .25s ease;
}
.main-nav a:hover{
    color:#fff;
}
.main-nav a:hover::after{
    width:28px;
}
.main-nav a.active{
    color:#fff;
}
.main-nav a.active::after{
    width:22px;
    opacity:1;
    background:linear-gradient(90deg,#12E2FF,#2B6FFF);
}
.header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
}
.nav-burger{
    display:none;
    width:44px;height:44px;
    align-items:center;
    justify-content:center;
    border-radius:12px;
    color:var(--white);
    border:1px solid rgba(255,255,255,.14);
    background:rgba(255,255,255,.05);
}
.nav-burger svg{width:22px;height:22px}
.nav-burger:focus-visible, .main-nav a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* Hero */
.cat-hero{
    position:relative;
    padding:calc(92px + clamp(46px,6vw,92px)) 0 clamp(64px,7vw,90px);
    background:
        linear-gradient(115deg,rgba(3,8,18,.94) 0%,rgba(3,8,18,.78) 42%,rgba(4,14,30,.42) 100%),
        linear-gradient(0deg,rgba(4,10,24,.85),rgba(4,10,24,.62)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom:1px solid rgba(255,255,255,.06);
    overflow:hidden;
}
.cat-hero::after{
    content:"";
    position:absolute;
    width:560px;height:560px;
    border-radius:50%;
    right:-180px;top:-120px;
    background:radial-gradient(circle,rgba(18,226,255,.16),rgba(18,226,255,0) 68%);
    pointer-events:none;
}
.hero-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--cyan);
    border:1px solid rgba(18,226,255,.26);
    background:rgba(18,226,255,.1);
    border-radius:100px;
    padding:8px 16px;
    margin-bottom:24px;
    letter-spacing:.04em;
}
.cat-hero h1{
    font-size:clamp(36px,6vw,64px);
    line-height:1.18;
    max-width:880px;
    color:#fff;
    font-weight:700;
    margin-bottom:22px;
}
.hero-lead{
    max-width:680px;
    font-size:clamp(17px,2vw,19px);
    line-height:1.85;
    color:#C7D4E8;
    margin-bottom:34px;
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:16px 18px;
    align-items:center;
}
.hero-meta{
    margin-top:38px;
    display:flex;
    flex-wrap:wrap;
    gap:12px 28px;
    color:var(--dim);
    font-size:14px;
}
.hero-meta span{
    display:inline-flex;
    align-items:center;
    gap:8px;
}
.hero-meta span::before{
    content:"";
    width:6px;height:6px;
    border-radius:50%;
    background:var(--green);
    box-shadow:0 0 0 4px rgba(74,227,160,.12);
}

/* Rule intro */
.rule-intro-section{
    padding:var(--space-section) 0 0;
    position:relative;
}
.rule-intro-card{
    background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.045));
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:clamp(24px,3.5vw,42px);
    box-shadow:var(--shadow-card);
    position:relative;
    overflow:hidden;
}
.rule-intro-card h2{
    font-size:clamp(26px,3.8vw,40px);
    line-height:1.3;
    margin-bottom:18px;
}
.rule-intro-card .intro-lead{
    font-size:17px;
    line-height:1.9;
    margin-bottom:26px;
}
.rule-check-list li{
    position:relative;
    padding:0 0 15px 34px;
    color:var(--text);
    line-height:1.8;
}
.rule-check-list li::before{
    content:"";
    position:absolute;
    left:6px;top:13px;
    width:9px;height:9px;
    border-radius:50%;
    background:var(--green);
    box-shadow:0 0 0 4px rgba(74,227,160,.1);
}
.rule-image-wrap{
    position:relative;
    border:1px solid rgba(255,255,255,.14);
    border-radius:28px;
    padding:10px;
    background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
}
.rule-image-wrap img{
    border-radius:20px;
    aspect-ratio:4/3;
    object-fit:cover;
    background:linear-gradient(135deg,#0A1428,#15264A);
}
.rule-fact{
    position:absolute;
    left:20px;bottom:22px;
    right:20px;
    background:rgba(3,10,24,.78);
    backdrop-filter:blur(10px);
    border:1px solid rgba(255,255,255,.12);
    border-radius:16px;
    padding:15px 18px;
    font-size:14px;
    color:#D6E4F8;
    line-height:1.8;
}
.rule-fact strong{color:var(--cyan);font-weight:600}

/* FAQ */
.faq-section{
    padding:var(--space-section) 0 0;
}
.section-head{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    align-items:flex-end;
    gap:22px;
    margin-bottom:36px;
}
.section-head h2{
    font-size:clamp(28px,4.2vw,44px);
    max-width:720px;
}
.section-head p{
    max-width:620px;
    margin:12px 0 0;
    color:var(--text);
}
.faq-list{
    max-width:1060px;
    margin:0 auto;
}
.faq-item{
    margin-bottom:18px;
    background:rgba(255,255,255,.056);
    border:1px solid rgba(255,255,255,.11);
    border-radius:20px;
    transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
    overflow:hidden;
}
.faq-item[open]{
    background:rgba(255,255,255,.078);
    border-color:rgba(18,226,255,.25);
    box-shadow:0 0 0 1px rgba(18,226,255,.08),0 16px 36px rgba(0,0,0,.22);
}
.faq-item summary{
    cursor:pointer;
    position:relative;
    list-style:none;
    padding:24px 74px 24px 28px;
    font-size:18px;
    font-weight:600;
    color:var(--white);
    letter-spacing:.01em;
    line-height:1.6;
    user-select:none;
    display:block;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-icon{
    position:absolute;
    top:50%;
    right:24px;
    width:36px;height:36px;
    transform:translateY(-50%);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border:1px solid rgba(255,255,255,.18);
    border-radius:50%;
    color:var(--cyan);
    transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.faq-icon::before,.faq-icon::after{
    content:"";
    position:absolute;
    background:currentColor;
    border-radius:2px;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{
    transform:translateY(-50%) rotate(45deg);
    border-color:rgba(18,226,255,.5);
    background:rgba(18,226,255,.1);
}
.faq-item .answer{
    padding:0 28px 28px;
    color:var(--text);
    font-size:16px;
    line-height:1.95;
    border-top:1px solid rgba(255,255,255,.06);
    padding-top:20px;
    margin:-2px 0 0;
}
.faq-topic{
    display:inline-block;
    margin-bottom:14px;
    padding:5px 14px;
    border-radius:100px;
    background:rgba(18,226,255,.07);
    border:1px solid rgba(18,226,255,.18);
    color:var(--cyan);
    font-size:13px;
    letter-spacing:.03em;
}

/* Rule auxiliary */
.rule-aux{
    padding:var(--space-section) 0 0;
}
.aux-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
}
.aux-card{
    border:1px solid var(--line);
    border-radius:24px;
    padding:34px;
    background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.04));
    display:flex;
    gap:24px;
    align-items:flex-start;
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.aux-card:hover{
    transform:translateY(-4px);
    border-color:rgba(18,226,255,.35);
    box-shadow:0 20px 46px rgba(0,0,0,.22),0 0 0 1px rgba(18,226,255,.08);
}
.aux-icon{
    width:54px;height:54px;
    flex-shrink:0;
    border-radius:16px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:var(--cyan);
    background:rgba(18,226,255,.1);
    border:1px solid rgba(18,226,255,.2);
}
.aux-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.aux-card h3{
    font-size:20px;
    margin:0 0 8px;
    color:#fff;
}
.aux-card p{
    margin:0;
    color:var(--text);
}
.aux-card .aux-link{
    margin-top:18px;
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--cyan);
    font-size:15px;
    font-weight:600;
}
.aux-card .aux-link span{transition:transform .2s ease}
.aux-card:hover .aux-link span{transform:translateX(5px)}
.aux-card:nth-child(even) .aux-icon{color:var(--gold);background:rgba(247,199,93,.1);border-color:rgba(247,199,93,.2)}

/* Rule support band */
.rule-support{
    margin-top:var(--space-section);
    position:relative;
    border-radius:28px;
    overflow:hidden;
    padding:clamp(34px,5vw,70px);
    background:
        linear-gradient(115deg,rgba(3,8,18,.92),rgba(3,12,30,.72),rgba(6,25,50,.86)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    border:1px solid rgba(255,255,255,.1);
    text-align:center;
}
.rule-support h2{
    font-size:clamp(28px,4vw,44px);
    color:#fff;
    margin-bottom:12px;
}
.rule-support p{
    max-width:680px;
    margin:0 auto 30px;
    color:#C8D6EC;
    font-size:17px;
    line-height:1.9;
}
.rule-support .btn-group{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:16px;
}

/* Notes */
.note-line{
    max-width:880px;
    margin:34px auto 0;
    padding:16px 22px;
    border-radius:14px;
    text-align:center;
    border:1px dashed rgba(255,255,255,.16);
    color:var(--dim);
    font-size:14px;
    background:rgba(255,255,255,.025);
}

/* Footer */
.footer{
    margin-top:var(--space-section);
    background:#030812;
    border-top:1px solid rgba(255,255,255,.07);
    padding:clamp(48px,6vw,64px) 0 0;
}
.footer-inner{
    display:grid;
    grid-template-columns:1.6fr 1fr 1.2fr;
    gap:44px;
}
.footer .brand{
    margin-bottom:16px;
}
.footer-brand-desc{
    max-width:380px;
    color:var(--dim);
    font-size:14px;
    line-height:1.9;
}
.footer-links h3,.footer-note h3{
    font-size:15px;
    color:#fff;
    font-weight:600;
    margin-bottom:16px;
    letter-spacing:.04em;
}
.footer-links ul li{
    margin-bottom:10px;
}
.footer-links li a{
    color:var(--dim);
    font-size:14px;
}
.footer-links li a:hover{
    color:var(--cyan);
}
.footer-note p{
    color:var(--dim);
    font-size:14px;
    line-height:1.9;
    margin:0;
}
.footer-bottom{
    margin-top:clamp(30px,4vw,52px);
    padding:22px 0;
    text-align:center;
    border-top:1px solid rgba(255,255,255,.06);
    color:#5F7392;
    font-size:13px;
}

@media (max-width:1199px){
    .main-nav{
        position:fixed;
        inset:0;
        z-index:120;
        width:100%;
        background:rgba(3,8,18,.94);
        backdrop-filter:blur(26px);
        -webkit-backdrop-filter:blur(26px);
        display:flex;
        align-items:center;
        justify-content:center;
        padding:0 26px;
        margin:0;
        opacity:0;
        visibility:hidden;
        transition:opacity .25s ease,visibility .25s ease;
    }
    .main-nav ul{
        flex-direction:column;
        align-items:center;
        gap:10px;
        width:100%;
    }
    .main-nav ul li{width:100%;max-width:320px;margin:0 auto}
    .main-nav a{
        justify-content:center;
        font-size:25px;
        min-height:60px;
        padding:12px 0;
        width:100%;
        color:var(--text);
    }
    .main-nav a::after{
        bottom:4px;
        left:20%;
        right:20%;
        width:0 !important;
    }
    .main-nav a:hover::after,.main-nav a.active::after{
        width:44px !important;
    }
    .site-header.nav-open .main-nav{
        opacity:1;
        visibility:visible;
    }
    .header-actions .btn-ghost{
        display:none;
    }
    .nav-burger{
        display:inline-flex;
        position:relative;
        z-index:200;
    }
    .brand{
        position:relative;
        z-index:200;
    }
}

@media (max-width:900px){
    .header-inner{min-height:66px}
    .main-nav a{min-height:66px}
    .cat-hero h1{font-size:clamp(32px,7vw,46px)}
    .aux-grid{grid-template-columns:1fr}
    .footer-inner{grid-template-columns:1fr;gap:34px}
}

@media (max-width:639px){
    body{overflow-x:hidden}
    .faq-item summary{padding:20px 68px 20px 20px;font-size:17px}
    .faq-item .answer{padding:0 20px 24px;font-size:16px}
    .aux-card{padding:26px;flex-direction:column;gap:16px}
    .btn{min-height:48px;padding:0 26px}
    .rule-support{padding:34px 22px}
    .hero-actions .btn{width:100%}
    .section-head{margin-bottom:26px}
}

/* roulang page: category4 */
:root {
            --bg-deep: #030812;
            --bg-main: #061121;
            --blue: #2B6FFF;
            --cyan: #12E2FF;
            --green: #4AE3A0;
            --gold: #F7C75D;
            --white: #F4F9FF;
            --text: #C6D4EA;
            --text-weak: #7F91AF;
            --line: rgba(255, 255, 255, 0.12);
            --card-bg: rgba(255, 255, 255, 0.055);
            --glow: 0 0 0 1px rgba(18, 226, 255, 0.18), 0 14px 44px rgba(32, 105, 255, 0.24);
            --radius-lg: 18px;
            --radius-md: 12px;
            --ease: cubic-bezier(.2, .75, .25, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background:
                radial-gradient(1200px 600px at 85% -5%, rgba(43, 111, 255, .22), transparent 60%),
                radial-gradient(900px 500px at -5% 15%, rgba(18, 226, 255, .12), transparent 55%),
                var(--bg-main);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body.is-locked {
            overflow: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease), opacity .25s var(--ease);
        }

        img {
            max-width: 100%;
            display: block;
        }

        ul,
        ol {
            list-style: none;
        }

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            color: inherit;
        }

        .container,
        html body .grid-container {
            max-width: 1240px;
            width: calc(100% - 48px);
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding: clamp(64px, 8vw, 110px) 0;
        }

        .section-head {
            max-width: 760px;
            margin-bottom: 48px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 6px 16px;
            border: 1px solid rgba(18, 226, 255, .22);
            border-radius: 100px;
            background: rgba(18, 226, 255, .06);
            color: var(--cyan);
            font-size: 13px;
            letter-spacing: .08em;
            margin-bottom: 18px;
        }

        .section-head h2 {
            color: var(--white);
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.28;
            font-weight: 650;
            letter-spacing: -.02em;
        }

        .section-head p {
            margin-top: 16px;
            color: var(--text);
            font-size: 16px;
            line-height: 1.85;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 17, 33, .78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            transition: background-color .35s ease, box-shadow .35s ease, border-color .35s ease;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .site-header.is-scrolled {
            background: rgba(3, 8, 18, .94);
            border-bottom-color: rgba(255, 255, 255, .13);
            box-shadow: 0 16px 44px rgba(0, 0, 0, .25);
        }

        .header-inner {
            height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--white);
            font-weight: 700;
            font-size: 19px;
            letter-spacing: .02em;
        }

        .brand-logo {
            width: 30px;
            height: 30px;
            color: var(--cyan);
            display: flex;
            filter: drop-shadow(0 0 12px rgba(18, 226, 255, .3));
        }

        .brand-logo svg {
            width: 100%;
            height: 100%;
            fill: currentColor;
        }

        .brand-text {
            white-space: nowrap;
        }

        .main-nav ul {
            display: flex;
            gap: clamp(22px, 3vw, 40px);
        }

        .main-nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 0 6px;
            color: #C6D4EA;
            font-size: 15px;
            font-weight: 500;
            transition: color .25s ease;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 14px;
            height: 2px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--cyan), var(--blue));
            box-shadow: 0 0 12px rgba(18, 226, 255, .65);
            opacity: 0;
            transform: scaleX(.6);
            transform-origin: left center;
            transition: opacity .25s ease, transform .25s ease;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--white);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .main-nav a.active::after {
            width: 24px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 24px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            letter-spacing: .01em;
            transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease), outline-color .22s var(--ease);
        }

        .btn:focus-visible {
            outline: 2px solid rgba(18, 226, 255, .85);
            outline-offset: 3px;
        }

        .btn-primary {
            color: #fff;
            background: linear-gradient(135deg, #0ED8FF 0%, #2B6FFF 100%);
            box-shadow: 0 10px 34px rgba(23, 147, 255, .35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 42px rgba(18, 226, 255, .3), 0 10px 34px rgba(43, 111, 255, .4);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 20px rgba(23, 147, 255, .3);
        }

        .btn-ghost {
            color: var(--white);
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .24);
            backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            color: #fff;
            border-color: rgba(18, 226, 255, .6);
            background: rgba(18, 226, 255, .08);
        }

        .btn-small {
            min-height: 42px;
            padding: 0 18px;
            font-size: 14px;
        }

        .nav-burger {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: none;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, .15);
            background: rgba(255, 255, 255, .04);
            color: var(--white);
        }

        .nav-burger svg {
            width: 22px;
            height: 22px;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: clamp(90px, 10vw, 130px) 0 76px;
            background:
                linear-gradient(108deg, rgba(3, 8, 18, .97) 6%, rgba(6, 17, 33, .86) 40%, rgba(9, 30, 62, .7) 78%),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            top: -120px;
            right: 8%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(18, 226, 255, .14), transparent 65%);
            pointer-events: none;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            color: var(--text-weak);
            font-size: 13px;
            margin-bottom: 30px;
        }

        .hero-breadcrumb a {
            color: #A7C0EF;
        }

        .hero-breadcrumb a:hover {
            color: var(--cyan);
        }

        .hero-breadcrumb span {
            color: rgba(196, 219, 255, .4);
        }

        .hero-content {
            max-width: 840px;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 7px 16px;
            border-radius: 100px;
            border: 1px solid rgba(18, 226, 255, .3);
            background: rgba(18, 226, 255, .08);
            color: var(--cyan);
            font-size: 13px;
            letter-spacing: .06em;
            margin-bottom: 22px;
        }

        .hero-badge::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--green);
            box-shadow: 0 0 0 4px rgba(74, 227, 160, .14);
        }

        .page-hero h1 {
            color: var(--white);
            font-size: clamp(34px, 5vw, 62px);
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -.025em;
        }

        .hero-sub {
            margin-top: 24px;
            max-width: 700px;
            color: #CBD8EE;
            font-size: 17px;
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
        }

        .hero-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
        }

        .hero-chips a {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 100px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            color: #AFC1DC;
            font-size: 13px;
        }

        .hero-chips a:hover {
            color: var(--white);
            border-color: rgba(18, 226, 255, .4);
            background: rgba(18, 226, 255, .07);
        }

        /* Quick cards */
        .quick-section {
            padding-top: clamp(70px, 8vw, 112px);
            padding-bottom: clamp(50px, 6vw, 80px);
        }

        .quick-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .quick-cell {
            flex: 1 1 260px;
            min-width: 0;
        }

        .quick-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: linear-gradient(180deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .04));
            border: 1px solid rgba(255, 255, 255, .11);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
            box-shadow: 0 16px 42px rgba(0, 0, 0, .2);
        }

        .quick-card:hover {
            transform: translateY(-5px);
            border-color: rgba(18, 226, 255, .3);
            box-shadow: var(--glow);
        }

        .quick-media {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

        .quick-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .quick-card:hover .quick-media img {
            transform: scale(1.04);
        }

        .quick-info {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .quick-info h3 {
            color: var(--white);
            font-size: 19px;
            font-weight: 650;
            line-height: 1.4;
            margin-top: 4px;
        }

        .quick-info p {
            margin-top: 12px;
            color: #A9BDDC;
            font-size: 15px;
            line-height: 1.7;
            flex: 1;
        }

        .quick-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 18px;
            color: var(--cyan);
            font-size: 14px;
            font-weight: 500;
        }

        .quick-link svg {
            width: 15px;
            height: 15px;
            transition: transform .25s ease;
        }

        .quick-card:hover .quick-link svg {
            transform: translateX(5px);
        }

        .tag-badge {
            display: inline-flex;
            width: fit-content;
            align-items: center;
            padding: 4px 10px;
            border-radius: 100px;
            background: rgba(247, 199, 93, .14);
            color: var(--gold);
            border: 1px solid rgba(247, 199, 93, .22);
            font-size: 12px;
            line-height: 1.6;
        }

        .tag-badge.cyan {
            background: rgba(18, 226, 255, .1);
            color: var(--cyan);
            border-color: rgba(18, 226, 255, .2);
        }

        .tag-badge.blue {
            background: rgba(43, 111, 255, .16);
            color: #8DB4FF;
            border-color: rgba(43, 111, 255, .25);
        }

        /* Notice attention */
        .attention-sec {
            padding-top: clamp(50px, 6vw, 80px);
            padding-bottom: clamp(70px, 8vw, 110px);
            background: linear-gradient(180deg, rgba(3, 8, 18, .18), rgba(3, 8, 18, .35));
        }

        .attention-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .attention-item {
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 16px;
            padding: 22px 22px 20px;
            transition: background .25s ease, border-color .25s ease;
        }

        .attention-item:hover {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(18, 226, 255, .22);
        }

        .attention-icon {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(18, 226, 255, .1);
            border: 1px solid rgba(18, 226, 255, .2);
            color: var(--cyan);
            margin-bottom: 18px;
        }

        .attention-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .attention-item h3 {
            color: var(--white);
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
        }

        .attention-item p {
            color: #9FB5D4;
            font-size: 14px;
            margin-top: 8px;
            line-height: 1.75;
        }

        /* Timeline */
        .timeline-section {
            background:
                radial-gradient(960px 480px at 10% 20%, rgba(43, 111, 255, .1), transparent 60%),
                #061121;
        }

        .announcement-timeline {
            position: relative;
            max-width: 980px;
            margin: 60px auto 0;
        }

        .announcement-timeline::before {
            content: "";
            position: absolute;
            top: 8px;
            bottom: 10px;
            left: 26px;
            width: 2px;
            border-radius: 2px;
            background: linear-gradient(180deg, rgba(18, 226, 255, .6), rgba(43, 111, 255, .12), rgba(18, 226, 255, .35));
        }

        .timeline-item {
            position: relative;
            padding-left: 80px;
            margin-bottom: 34px;
        }

        .timeline-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #071729;
            border: 1px solid rgba(18, 226, 255, .35);
            color: var(--cyan);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: .03em;
            box-shadow: 0 0 0 6px rgba(18, 226, 255, .05), 0 0 28px rgba(18, 226, 255, .1);
        }

        .timeline-card {
            display: grid;
            grid-template-columns: 245px 1fr;
            background: linear-gradient(140deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .045));
            border: 1px solid rgba(255, 255, 255, .11);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 55px rgba(0, 0, 0, .25);
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .timeline-card:hover {
            transform: translateY(-2px);
            border-color: rgba(18, 226, 255, .22);
            box-shadow: 0 24px 60px rgba(0, 0, 0, .3), 0 0 0 1px rgba(18, 226, 255, .08);
        }

        .timeline-media {
            position: relative;
            min-height: 220px;
        }

        .timeline-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .timeline-content {
            padding: 26px 28px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .timeline-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .timeline-top .badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: 100px;
            font-size: 12px;
            line-height: 1.5;
        }

        .badge-blue {
            background: rgba(43, 111, 255, .18);
            color: #9BC1FF;
            border: 1px solid rgba(43, 111, 255, .3);
        }

        .badge-cyan {
            background: rgba(18, 226, 255, .12);
            color: var(--cyan);
            border: 1px solid rgba(18, 226, 255, .24);
        }

        .badge-gold {
            background: rgba(247, 199, 93, .12);
            color: var(--gold);
            border: 1px solid rgba(247, 199, 93, .25);
        }

        .badge-gray {
            background: rgba(255, 255, 255, .06);
            color: #9AB0D1;
            border: 1px solid rgba(255, 255, 255, .12);
        }

        .timeline-content h3 {
            color: var(--white);
            font-size: 20px;
            line-height: 1.5;
            font-weight: 650;
            letter-spacing: -.01em;
        }

        .timeline-content p {
            color: #A9BDDC;
            margin-top: 12px;
            font-size: 15px;
            line-height: 1.85;
        }

        .timeline-content p strong {
            color: #D6E6FF;
            font-weight: 600;
        }

        .timeline-action {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
            color: var(--cyan);
            font-weight: 500;
            font-size: 14px;
            width: fit-content;
        }

        .timeline-action svg {
            width: 14px;
            height: 14px;
        }

        .timeline-card:hover .timeline-action svg {
            transform: translateX(5px);
        }

        .timeline-cta {
            margin-top: 48px;
            text-align: center;
        }

        /* Subscribe CTA */
        .subscribe-sec {
            padding: clamp(70px, 8vw, 110px) 0;
        }

        .subscribe-card {
            position: relative;
            overflow: hidden;
            border-radius: 28px;
            border: 1px solid rgba(255, 255, 255, .14);
            padding: clamp(28px, 5vw, 68px);
            background:
                linear-gradient(120deg, rgba(3, 8, 18, .95), rgba(6, 17, 33, .8)),
                url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
            box-shadow: 0 28px 90px rgba(0, 0, 0, .4);
        }

        .subscribe-inner {
            max-width: 690px;
            position: relative;
            z-index: 2;
        }

        .subscribe-inner .eyebrow {
            margin-bottom: 14px;
        }

        .subscribe-inner h2 {
            color: var(--white);
            font-size: clamp(26px, 4vw, 40px);
            line-height: 1.3;
            letter-spacing: -.02em;
        }

        .subscribe-inner>p {
            color: #BED0E8;
            margin: 16px 0 28px;
            line-height: 1.8;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-form .input-wrap {
            flex: 1 1 300px;
            min-width: 0;
        }

        .subscribe-form input {
            width: 100%;
            height: 52px;
            background: rgba(7, 15, 34, .8);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 100px;
            padding: 0 22px;
            color: var(--white);
            font-size: 15px;
            outline: none;
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .subscribe-form input::placeholder {
            color: #7690AE;
        }

        .subscribe-form input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 5px rgba(18, 226, 255, .12);
        }

        .subscribe-form .btn {
            flex-shrink: 0;
        }

        .subscribe-note {
            margin-top: 16px;
            color: #8FA6C6;
            font-size: 13px;
        }

        /* FAQ */
        .faq-section {
            padding-top: clamp(60px, 7vw, 90px);
            padding-bottom: clamp(70px, 9vw, 120px);
            background: linear-gradient(180deg, transparent, rgba(3, 8, 18, .4));
        }

        .faq-panel {
            max-width: 900px;
            margin: 0 auto;
            border-radius: 22px;
            overflow: hidden;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            box-shadow: 0 18px 55px rgba(0, 0, 0, .2);
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, .09);
            background: transparent;
        }

        .faq-item:last-child {
            border-bottom: 0;
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            text-align: left;
            padding: 22px 28px;
            color: var(--white);
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            transition: background-color .25s ease;
        }

        .faq-q:hover {
            background: rgba(255, 255, 255, .04);
        }

        .faq-q::after {
            content: "+";
            font-size: 28px;
            font-weight: 300;
            line-height: 1;
            color: var(--cyan);
            transition: transform .3s ease;
            flex-shrink: 0;
            margin-left: 24px;
        }

        .faq-item.is-open .faq-q::after {
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            color: #B5C9E4;
            font-size: 16px;
            line-height: 1.9;
        }

        .faq-a p {
            padding: 0 30px 26px;
        }

        .faq-item.is-open .faq-a {
            max-height: 560px;
        }

        .faq-bottom {
            margin-top: 34px;
            text-align: center;
        }

        .faq-bottom a {
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Footer */
        .footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.25fr 1fr .9fr;
            gap: 60px;
            padding: 68px 0 50px;
        }

        .footer .brand {
            font-size: 19px;
        }

        .footer-brand-desc {
            max-width: 430px;
            margin-top: 18px;
            color: #8398B8;
            font-size: 14px;
            line-height: 1.9;
        }

        .footer-links h3,
        .footer-note h3 {
            color: var(--white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: #8DA3C5;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--cyan);
        }

        .footer-note {
            color: #8398B8;
            font-size: 14px;
            line-height: 1.9;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0;
            text-align: center;
            color: #6F86A6;
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 1080px) {
            .main-nav ul {
                gap: 20px;
            }

            .timeline-card {
                grid-template-columns: 200px 1fr;
            }
        }

        @media (max-width: 960px) {
            .main-nav {
                position: fixed;
                inset: 0;
                z-index: 120;
                background: rgba(3, 8, 18, .97);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                display: flex;
                align-items: center;
                justify-content: center;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: opacity .3s ease, visibility .3s ease, transform .3s ease;
            }

            .main-nav.open {
                opacity: 1;
                visibility: visible;
                transform: none;
            }

            .main-nav ul {
                flex-direction: column;
                align-items: center;
                gap: 22px;
                text-align: center;
            }

            .main-nav a {
                font-size: 22px;
                padding: 8px 12px;
                color: rgba(198, 212, 234, .9);
            }

            .main-nav a::after {
                left: 50%;
                right: auto;
                transform: translateX(-50%) scaleX(.5);
            }

            .main-nav a:hover::after,
            .main-nav a.active::after {
                transform: translateX(-50%) scaleX(1);
            }

            .header-actions .btn-ghost {
                display: none;
            }

            .nav-burger {
                display: inline-flex;
            }

            .attention-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 42px;
            }
        }

        @media (max-width: 820px) {
            .timeline-card {
                grid-template-columns: 1fr;
            }

            .timeline-media {
                min-height: 190px;
            }

            .timeline-media img {
                position: static;
                height: 190px;
            }

            .announcement-timeline {
                margin-top: 44px;
            }
        }

        @media (max-width: 700px) {
            .container,
            html body .grid-container {
                width: calc(100% - 36px);
            }

            .header-inner {
                height: 64px;
            }

            .brand-text {
                font-size: 17px;
            }

            .brand-logo {
                width: 26px;
                height: 26px;
            }

            .page-hero {
                padding: 74px 0 58px;
            }

            .page-hero h1 {
                font-size: clamp(30px, 8vw, 40px);
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-actions .btn+.btn {
                margin-left: 0;
            }

            .attention-grid {
                grid-template-columns: 1fr;
            }

            .quick-cell {
                flex-basis: 100%;
            }

            .announcement-timeline::before {
                left: 18px;
            }

            .timeline-number {
                width: 38px;
                height: 38px;
                font-size: 12px;
            }

            .timeline-item {
                padding-left: 62px;
                margin-bottom: 28px;
            }

            .timeline-content {
                padding: 20px 18px 22px;
            }

            .timeline-content h3 {
                font-size: 18px;
            }

            .subscribe-card {
                border-radius: 20px;
            }

            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-form .btn {
                width: 100%;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 34px;
                padding: 52px 0 36px;
            }
        }