/* roulang page: index */
:root {
    --bg-base: #0a0e17;
    --bg-deep: #080c14;
    --bg-elev: #0d1b2a;
    --panel: rgba(15, 23, 42, 0.62);
    --glass: rgba(255, 255, 255, 0.05);
    --line: rgba(255, 255, 255, 0.12);
    --text-max: #eef4ff;
    --text-body: #b7c4d8;
    --text-muted: #7f8ea6;
    --accent: #00d9ff;
    --accent-2: #0077b6;
    --accent-line: #1e3a8a;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --shadow-lg: 0 15px 50px -15px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 12px 30px -12px rgba(0, 0, 0, 0.35);
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg-base);
    color: var(--text-body);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.grid-container {
    max-width: 1280px;
}

.text-accent {
    color: var(--accent);
}

.section {
    padding: 80px 0;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: .18em;
    color: var(--accent);
    background: rgba(0, 217, 255, .08);
    border: 1px solid rgba(0, 217, 255, .16);
    padding: 4px 12px;
    border-radius: 30px;
    margin-bottom: 18px;
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 900;
    color: var(--text-max);
    line-height: 1.3;
    letter-spacing: .02em;
}

.section-desc {
    max-width: 640px;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.9;
    margin-top: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    border-radius: 50px;
    padding: .85rem 1.8rem;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid transparent;
    line-height: 1.2;
    transition: all .3s ease;
    letter-spacing: .02em;
}

.btn-primary {
    background: linear-gradient(135deg, #00b4d8, #0077b6);
    color: #ffffff;
    box-shadow: 0 0 22px rgba(0, 217, 255, .25);
    text-shadow: 0 0 10px rgba(0, 217, 255, .35);
}

.btn-primary:hover {
    box-shadow: 0 0 36px rgba(0, 217, 255, .4);
    transform: translateY(-2px);
    color: #fff;
}

.btn-outline {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent);
    text-shadow: 0 0 10px rgba(0, 217, 255, .3);
}

.btn-outline:hover {
    background: rgba(0, 217, 255, .1);
    border-color: #7cefff;
    color: #7cefff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, .16);
}

.btn-ghost {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .14);
    color: var(--text-max);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, .14);
    color: #fff;
    transform: translateY(-2px);
}

.btn-sm {
    padding: .6rem 1.25rem;
    font-size: 14px;
}

.text-link {
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.text-link:hover {
    color: #7cefff;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(10, 14, 23, .82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
}

.header-top {
    border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.header-top .grid-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    padding-top: 8px;
    padding-bottom: 8px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 217, 255, .2), rgba(0, 119, 182, .1));
    border: 1px solid rgba(0, 217, 255, .45);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 18px;
    box-shadow: 0 0 16px rgba(0, 217, 255, .18);
    position: relative;
}

.logo-mark::after {
    content: "";
    position: absolute;
    inset: 4px;
    border-radius: 8px;
    border: 1px dashed rgba(0, 217, 255, .35);
}

.logo-text {
    font-weight: 900;
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-max);
    letter-spacing: .03em;
    white-space: nowrap;
}

.logo-text span {
    color: var(--accent);
}

.header-auth {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-auth .btn {
    padding: .55rem 1.2rem;
    font-size: 14px;
}

.auth-btn {
    color: var(--text-body);
    font-weight: 600;
}

.auth-btn:hover {
    color: var(--accent);
}

.channel-row {
    background: transparent;
}

.channel-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 54px;
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
}

.channel-nav::-webkit-scrollbar {
    display: none;
}

.channel-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 15px;
    border-radius: 8px;
    transition: all .3s ease;
    flex-shrink: 0;
}

.channel-nav a:hover {
    color: var(--text-max);
    background: rgba(255, 255, 255, .04);
}

.channel-nav a.active {
    color: var(--accent);
}

.channel-nav a.active::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 16px;
    width: 20px;
    height: 2px;
    border-radius: 3px;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

/* Hero */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    min-height: calc(92vh - 132px);
    padding: 90px 0 70px;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    isolation: isolate;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(100deg, rgba(8, 12, 20, .96) 0%, rgba(10, 14, 23, .86) 42%, rgba(10, 14, 23, .58) 100%),
        radial-gradient(circle at 12% 12%, rgba(0, 217, 255, .12), transparent 38%);
    z-index: -1;
}

.hero .grid-container {
    position: relative;
    z-index: 2;
}

.hero-copy {
    padding-right: 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 217, 255, .1);
    border: 1px solid rgba(0, 217, 255, .22);
    color: var(--accent);
    font-size: 13px;
    letter-spacing: .08em;
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 22px;
}

.hero h1 {
    font-size: clamp(38px, 6vw, 64px);
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
    letter-spacing: .02em;
    text-shadow: 0 0 30px rgba(0, 217, 255, .28);
}

.hero-sub {
    font-size: clamp(16px, 2.2vw, 22px);
    font-weight: 600;
    color: var(--accent);
    margin-top: 20px;
    letter-spacing: .04em;
}

.hero-desc {
    max-width: 620px;
    margin-top: 18px;
    font-size: 16px;
    color: #c3d1e5;
    line-height: 2;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 36px;
}

.hero-trust {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px 28px;
    color: var(--text-muted);
    font-size: 14px;
}

.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.hero-trust i {
    color: var(--accent);
}

/* Login glass card */
.access-card {
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, .14);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 30px 28px;
    max-width: 420px;
    margin-left: auto;
    position: relative;
}

.access-card::before {
    content: "";
    position: absolute;
    top: -1px;
    right: 24px;
    left: 24px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: .8;
}

.lg-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.lg-title {
    color: var(--text-max);
    font-weight: 800;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lg-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--accent);
    background: rgba(0, 217, 255, .1);
    padding: 3px 10px;
    border-radius: 50px;
}

.lg-status .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
}

.lg-tip {
    font-size: 13px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    padding: 9px 12px;
    border-radius: 10px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lg-tip i {
    color: var(--accent);
}

.lg-field {
    display: block;
    margin-bottom: 15px;
}

.lg-field span {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-body);
    margin-bottom: 6px;
}

.lg-field input {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, .12);
    background: rgba(0, 0, 0, .25);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text-max);
    font-size: 14px;
    outline: none;
    transition: all .3s ease;
    box-shadow: none;
    margin: 0;
    font-family: var(--font);
}

.lg-field input::placeholder {
    color: #5b6a82;
}

.lg-field input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, .12);
    background: rgba(0, 0, 0, .35);
}

.lg-foot {
    margin-top: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.lg-foot a {
    color: var(--accent);
}

.lg-foot a:hover {
    color: #7cefff;
}

/* Stat/feature mini strip */
.stat-strip {
    background: linear-gradient(135deg, rgba(13, 27, 42, .95), rgba(9, 13, 24, .98));
    border-top: 1px solid rgba(255, 255, 255, .08);
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    padding: 28px 0;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.stat-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px;
}

.stat-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 255, .1);
    border: 1px solid rgba(0, 217, 255, .18);
    color: var(--accent);
    font-size: 18px;
}

.stat-title {
    color: var(--text-max);
    font-weight: 800;
    font-size: 16px;
}

.stat-desc {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.6;
    margin-top: 4px;
}

/* News list section */
.news-section {
    background: transparent;
    position: relative;
}

.news-section::before {
    content: "";
    position: absolute;
    top: 60px;
    right: 0;
    left: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 217, 255, .2), rgba(255, 255, 255, .08), transparent);
}

.news-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 38px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    display: block;
    background: #0e1524;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .3s ease;
}

.news-item:hover {
    border-color: rgba(0, 217, 255, .35);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.news-inner {
    display: flex;
    align-items: stretch;
    gap: 0;
}

.news-thumb {
    width: 200px;
    min-height: 150px;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

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

.news-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 55%, rgba(10, 14, 23, .7) 100%);
}

.news-body {
    flex: 1;
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.news-tag {
    font-size: 12px;
    color: var(--accent);
    background: rgba(0, 217, 255, .08);
    padding: 3px 10px;
    border-radius: 50px;
    border: 1px solid rgba(0, 217, 255, .14);
}

.news-date {
    font-size: 12px;
    color: var(--text-muted);
}

.news-body h3 {
    font-size: 18px;
    font-weight: 800;
    color: #dde8fa;
    line-height: 1.6;
    margin: 4px 0 8px;
    transition: color .2s;
}

.news-item:hover .news-body h3 {
    color: var(--accent);
}

.news-excerpt {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all .2s;
}

.news-item:hover .news-more {
    color: var(--accent);
}

.news-empty {
    background: rgba(255, 255, 255, .03);
    border: 1px dashed rgba(255, 255, 255, .12);
    border-radius: var(--radius-md);
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 15px;
}

.news-empty i {
    font-size: 32px;
    color: rgba(0, 217, 255, .4);
    display: block;
    margin-bottom: 12px;
}

.section-btn-wrap {
    margin-top: 32px;
    text-align: center;
}

/* Feature content */
.feature-section {
    background: #0b111d;
    border-top: 1px solid rgba(255, 255, 255, .05);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.feature-block {
    display: flex;
    align-items: center;
    gap: 56px;
    padding: 28px 0;
}

.feature-block.reverse {
    flex-direction: row-reverse;
}

.feature-media {
    flex: 1;
    min-width: 0;
    position: relative;
}

.feature-media .img-frame {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .12);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4 / 3;
    position: relative;
}

.feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-media::after {
    content: "";
    position: absolute;
    inset: 12px -12px -12px 12px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, .18);
    z-index: -1;
}

.feature-body {
    flex: 1;
    min-width: 0;
}

.feature-body h3 {
    font-size: clamp(22px, 3vw, 34px);
    font-weight: 900;
    color: var(--text-max);
    line-height: 1.5;
    margin: 6px 0 18px;
}

.feature-body p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 2;
    margin-bottom: 18px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 20px 0;
    padding: 0;
}

.feature-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: rgba(255, 255, 255, .03);
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, .08);
}

.feature-list i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-list strong {
    display: block;
    color: var(--text-max);
    font-weight: 800;
    font-size: 15px;
    margin-bottom: 4px;
}

.feature-list span {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
}

/* Trust bar */
.trust-section {
    background:
        linear-gradient(110deg, rgba(0, 23, 51, .85), rgba(9, 13, 24, .95)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    padding: 70px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 36px;
}

.trust-card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius-md);
    padding: 26px 24px;
    position: relative;
    overflow: hidden;
    transition: all .3s ease;
}

.trust-card:hover {
    border-color: rgba(0, 217, 255, .3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.trust-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 24px;
    width: 42px;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
}

.trust-card h4 {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-max);
    display: flex;
    align-items: center;
    gap: 10px;
}

.trust-card h4 i {
    color: var(--accent);
}

.trust-card p {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
}

/* FAQ */
.faq-section {
    background: #0d1420;
}

.faq-wrap {
    max-width: 900px;
    margin: 0 auto;
}

.faq-title {
    text-align: center;
    margin-bottom: 48px;
}

.faq-title h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 900;
    color: var(--text-max);
    letter-spacing: .05em;
}

.faq-title p {
    color: var(--text-muted);
    margin-top: 10px;
}

.accordion.faq-list {
    list-style: none;
    margin: 0;
    background: transparent;
    border: 0;
}

.faq-list .accordion-item {
    background: rgba(255, 255, 255, .035);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .3s ease;
}

.faq-list .accordion-item.is-active {
    border-color: rgba(0, 217, 255, .3);
}

.faq-list .accordion-title {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: transparent;
    color: var(--text-max);
    font-size: 16px;
    font-weight: 700;
    border: 0;
    border-radius: 0;
    transition: color .2s;
}

.faq-list .accordion-title:hover {
    color: var(--accent);
    background: rgba(0, 217, 255, .04);
}

.faq-list .accordion-title::before {
    content: "\f059";
    font-family: "Font Awesome 6 Free";
    font-weight: 400;
    color: var(--accent);
    font-size: 18px;
}

.faq-list .accordion-title::after {
    content: "+";
    position: absolute;
    right: 20px;
    font-size: 22px;
    color: var(--accent);
    transition: transform .3s ease;
}

.faq-list .accordion-item.is-active > .accordion-title::after {
    transform: rotate(45deg);
}

.faq-list .accordion-content {
    padding: 0 20px 20px 52px;
    background: transparent;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 2;
}

.faq-list .accordion-content a {
    color: var(--accent);
}

/* CTA */
.cta-section {
    padding: 0 0 80px;
    background: #0a0e17;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 24px;
    padding: 48px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 10%, rgba(0, 217, 255, .16), transparent 35%),
        radial-gradient(circle at 95% 80%, rgba(30, 58, 138, .18), transparent 45%);
    pointer-events: none;
}

.cta-info {
    position: relative;
    z-index: 1;
    flex: 1;
}

.cta-info h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 900;
    color: var(--text-max);
    line-height: 1.5;
}

.cta-info p {
    color: var(--text-muted);
    margin-top: 12px;
    font-size: 16px;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

/* Footer */
.site-footer {
    background: #070b11;
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding-top: 56px;
}

.footer-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-about .footer-brand-name {
    color: var(--text-max);
    font-size: 19px;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-about p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.9;
    margin-top: 14px;
    max-width: 420px;
}

.footer-col h4 {
    color: var(--text-max);
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col li a {
    color: var(--text-muted);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all .2s;
}

.footer-col li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-subline {
    border-top: 1px solid rgba(255, 255, 255, .07);
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    color: rgba(255, 255, 255, .35);
    font-size: 13px;
}

.footer-subline .footer-copy a {
    color: inherit;
}

/* Responsive */
@media (max-width: 1024px) {
    .section {
        padding: 60px 0;
    }

    .feature-block {
        gap: 36px;
        padding: 14px 0;
    }

    .hero {
        min-height: auto;
        padding: 70px 0 70px;
    }

    .cta-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 36px;
    }

    .cta-actions {
        width: 100%;
    }

    .footer-layout {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .grid-container {
        padding: 0 16px;
    }

    .section {
        padding: 48px 0;
    }

    .header-top .grid-container {
        min-height: 60px;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
    }

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

    .access-card {
        margin-top: 42px;
        margin-left: 0;
        max-width: 100%;
    }

    .feature-block,
    .feature-block.reverse {
        flex-direction: column;
        gap: 30px;
        padding: 0;
    }

    .feature-media,
    .feature-body {
        width: 100%;
        flex: none;
    }

    .news-inner {
        flex-direction: column;
    }

    .news-thumb {
        width: 100%;
        min-height: 200px;
        position: relative;
    }

    .news-thumb img {
        position: absolute;
    }

    .news-body {
        padding: 18px;
    }

    .cta-box {
        padding: 28px 22px;
        border-radius: 18px;
    }

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

    .footer-layout {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .footer-subline {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }

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

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

@media (max-width: 520px) {
    .header-auth .auth-btn {
        display: none;
    }

    .header-top .grid-container {
        min-height: 56px;
    }

    .brand-logo .logo-text {
        font-size: 13px;
    }

    .channel-nav a {
        padding: 10px 12px;
        font-size: 14px;
    }

    .hero {
        padding: 50px 0;
    }

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

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

    .section-head {
        margin-bottom: 24px;
    }

    .news-thumb {
        min-height: 160px;
    }
}

/* roulang page: category1 */
:root{
  --bg:#0A0E17;
  --bg-deep:#070B12;
  --bg-soft:#0D1B2A;
  --panel:rgba(15,23,42,0.62);
  --panel-light:rgba(255,255,255,0.045);
  --line:rgba(255,255,255,0.11);
  --line-bright:rgba(0,217,255,0.32);
  --cyan:#00D9FF;
  --cyan-soft:rgba(0,217,255,0.16);
  --blue:#1E3A8A;
  --blue-bright:#0077B6;
  --heading:#F1F7FF;
  --text:#C9D6E6;
  --muted:#7E8FA6;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 50px -18px rgba(0,0,0,0.55);
  --font:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:
    radial-gradient(760px 470px at 8% -4%,rgba(0,217,255,0.13),transparent 60%),
    radial-gradient(620px 500px at 96% 4%,rgba(30,58,138,0.24),transparent 55%),
    linear-gradient(180deg,#0A0E17 0%,#070B12 100%);
  background-attachment:fixed;
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  overflow-x:hidden;
}
a{color:inherit;transition:color .25s}
img{max-width:100%;display:block}
ul{list-style:none}
.grid-container{
  max-width:1180px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:50px;
  padding:12px 26px;
  font-size:.94rem;
  font-weight:600;
  text-decoration:none;
  border:1px solid rgba(255,255,255,0.18);
  background:transparent;
  color:var(--heading);
  transition:all .3s;
  cursor:pointer;
  line-height:1.4;
}
.btn-lg{padding:15px 34px;font-size:1rem}
.btn-sm{padding:8px 18px;font-size:.85rem}
.btn-outline{border-color:rgba(0,217,255,0.5)}
.btn-outline:hover{border-color:var(--cyan);background:rgba(0,217,255,.08);box-shadow:0 0 24px rgba(0,217,255,.12)}
.btn-glow{
  background:linear-gradient(135deg,#00B4D8,#0077B6);
  border:none;
  color:#EAF7FC;
  box-shadow:0 10px 30px -8px rgba(0,180,216,.5);
  text-shadow:0 0 10px rgba(0,217,255,.45);
}
.btn-glow:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 42px -8px rgba(0,217,255,.6);
  color:#fff;
}
.btn-ghost-light{color:#E7F2FF}
.btn-ghost-light:hover{color:var(--cyan);border-color:var(--cyan)}

.site-header{position:relative;z-index:60}
.header-top{
  background:rgba(5,8,14,0.62);
  border-bottom:1px solid rgba(255,255,255,0.07);
  backdrop-filter:blur(14px);
}
.header-top .grid-container{
  display:flex;
  align-items:center;
  min-height:66px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--heading);
  font-weight:900;
  letter-spacing:.02em;
}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:10px;
  background:linear-gradient(135deg,#00B4D8,#0077B6);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:16px;
  box-shadow:0 0 18px rgba(0,217,255,.3);
}
.logo-text{font-size:1.15rem;color:var(--heading)}
.logo-text span{color:var(--cyan)}
.header-auth{margin-left:auto;display:flex;align-items:center;gap:14px}
.auth-btn{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;color:#AFC6DE;text-decoration:none;padding:9px 12px;border-radius:40px;border:1px solid transparent}
.auth-btn:hover{color:var(--cyan);border-color:rgba(0,217,255,.3)}
.channel-row{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(10,14,23,.82);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
}
.channel-nav{
  display:flex;
  align-items:center;
  gap:34px;
  padding:10px 0;
}
.channel-nav a{
  position:relative;
  padding:10px 2px;
  color:#AEBFD2;
  text-decoration:none;
  font-size:.94rem;
  font-weight:600;
  white-space:nowrap;
}
.channel-nav a:hover{color:var(--cyan)}
.channel-nav a.active{color:var(--cyan)}
.channel-nav a.active::after{
  content:"";
  position:absolute;
  left:0;
  bottom:3px;
  width:22px;
  height:2px;
  border-radius:3px;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(0,217,255,.6);
}

.cat-hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 84px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.cat-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 30%;
  opacity:.34;
}
.cat-hero .hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,14,23,.65) 0%,rgba(10,14,23,.78) 55%,var(--bg) 100%);
}
.cat-hero .grid-container{position:relative;z-index:2}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:.82rem;
  color:var(--muted);
  margin-bottom:38px;
}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--cyan)}
.crumb .fa-angles-right{font-size:.72rem;margin:0 2px}
.crumb .now{color:#B5C9DF}
.hero-title{
  color:#fff;
  font-size:clamp(2rem,4vw,3rem);
  font-weight:900;
  letter-spacing:.01em;
  line-height:1.25;
  margin-bottom:24px;
  max-width:820px;
}
.hero-title .title-main{color:var(--cyan)}
.hero-lead{
  max-width:760px;
  font-size:1.08rem;
  line-height:1.9;
  color:#CBD9E8;
  margin-bottom:30px;
}
.hero-safety{
  display:flex;
  flex-wrap:wrap;
  gap:12px 30px;
  margin-bottom:34px;
}
.hero-safety li{
  list-style:none;
  padding-left:26px;
  position:relative;
  color:#BBD0E6;
  font-size:.92rem;
}
.hero-safety i{
  position:absolute;
  left:0;
  top:4px;
  color:var(--cyan);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.cat-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:70px;background:linear-gradient(180deg,transparent,var(--bg));z-index:1}

.section{padding:72px 0 90px}
.section-head{
  margin-bottom:50px;
  max-width:780px;
}
.overline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--cyan);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  margin-bottom:12px;
}
.overline::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:3px;box-shadow:0 0 8px rgba(0,217,255,.7)}
.section-title{
  color:var(--heading);
  font-size:clamp(1.6rem,3vw,2.15rem);
  font-weight:900;
  line-height:1.35;
  margin-bottom:16px;
}
.section-sub{
  color:#9CACBE;
  font-size:1.02rem;
  line-height:1.9;
}
.soft-tags{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.soft-tags span{
  background:rgba(0,217,255,.06);
  border:1px solid rgba(0,217,255,.22);
  color:#AFE5F5;
  border-radius:40px;
  padding:7px 16px;
  font-size:.84rem;
}

.intro-section{
  border-bottom:1px solid rgba(255,255,255,.06);
  background:rgba(6,10,18,.3);
}
.inspect-card{
  background:var(--panel);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:32px;
  height:100%;
}
.inspect-card h3{
  color:#F2F8FF;
  font-size:1.18rem;
  font-weight:800;
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.inspect-card h3 i{color:var(--cyan)}
.inspect-list li{
  position:relative;
  padding:10px 0 10px 28px;
  border-bottom:1px dashed rgba(255,255,255,.08);
  color:#B8C8D9;
  font-size:.94rem;
}
.inspect-list li:last-child{border-bottom:none}
.inspect-list i{
  position:absolute;
  left:0;
  top:15px;
  color:var(--cyan);
  font-size:.9rem;
}

.channel-section{background:rgba(8,12,20,.4)}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:34px;
}
.filter-chip{
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.03);
  color:#BCD0E4;
  border-radius:50px;
  padding:9px 19px;
  font-size:.88rem;
  text-decoration:none;
}
.filter-chip i{margin-right:5px;color:var(--cyan)}
.filter-chip:hover,.filter-chip.current{
  border-color:rgba(0,217,255,.5);
  background:rgba(0,217,255,.1);
  color:#E5F8FF;
}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.entry-card{
  background:rgba(15,23,42,.58);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);
  padding:30px;
  transition:all .3s;
  position:relative;
  overflow:hidden;
  height:100%;
}
.entry-card::before{
  content:"";
  position:absolute;
  left:-70px;top:-70px;
  width:160px;height:160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,217,255,.16),transparent 70%);
  opacity:0;
  transition:.3s;
}
.entry-card:hover{
  transform:translateY(-5px);
  border-color:rgba(0,217,255,.35);
  box-shadow:0 24px 46px -18px rgba(0,0,0,.6);
}
.entry-card:hover::before{opacity:1}
.card-icon{
  width:48px;
  height:48px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(0,217,255,.1);
  color:var(--cyan);
  font-size:18px;
  border:1px solid rgba(0,217,255,.22);
  margin-bottom:18px;
}
.entry-card h3{
  color:#F2F8FF;
  font-size:1.07rem;
  font-weight:800;
  margin-bottom:10px;
}
.entry-card p{color:#A0B1C4;font-size:.94rem;line-height:1.8}

.media-section{background:var(--bg-deep)}
.media-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
}
.media-wrap+.media-wrap{margin-top:70px}
.media-frame{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--shadow);
}
.media-frame img{
  width:100%;
  height:330px;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:55%;
  background:linear-gradient(180deg,rgba(0,0,0,0) 0%,#0A0E17 100%);
  pointer-events:none;
}
.media-panel{padding:16px 0}
.media-panel .tag-only{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--cyan);
  font-size:.8rem;
  font-weight:700;
  background:rgba(0,217,255,.08);
  border:1px solid rgba(0,217,255,.18);
  padding:6px 12px;
  border-radius:40px;
  margin-bottom:18px;
}
.media-panel h2{
  color:var(--heading);
  font-size:1.7rem;
  font-weight:900;
  line-height:1.45;
  margin-bottom:16px;
}
.media-panel > p{color:#A7B8CA;line-height:1.9;margin-bottom:20px}
.check-list li{
  position:relative;
  padding:8px 0 8px 30px;
  color:#C0D2E4;
  font-size:.95rem;
}
.check-list i{
  position:absolute;
  left:0;
  top:12px;
  color:var(--cyan);
}

.steps-section{
  background:linear-gradient(180deg,rgba(8,12,20,.2),rgba(8,12,20,.78));
  border-bottom:1px solid rgba(255,255,255,.06);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.step-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);
  padding:34px 26px;
  position:relative;
}
.step-number{
  font-size:.8rem;
  color:#0A0E17;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:12px;
  background:linear-gradient(135deg,#00B4D8,#0077B6);
  font-weight:900;
  box-shadow:0 0 16px rgba(0,217,255,.2);
  margin-bottom:20px;
}
.step-card h3{
  color:var(--heading);
  font-size:1.05rem;
  font-weight:800;
  margin-bottom:12px;
}
.step-card p{color:#9DADC0;font-size:.92rem;line-height:1.85}
.step-card::after{
  content:"";
  position:absolute;
  right:18px;
  top:36px;
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:rgba(0,217,255,.25);
  font-size:1.2rem;
}

.trust-strip{
  background:linear-gradient(90deg,#0B1526 0%,#0C2A45 100%);
  border-top:1px solid rgba(0,217,255,.14);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.trust-strip .trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:34px 0;
}
.trust-cell{display:flex;gap:14px;align-items:flex-start}
.trust-cell i{
  color:var(--cyan);
  font-size:20px;
  width:24px;
  text-align:center;
  margin-top:3px;
}
.trust-cell h4{color:var(--heading);font-size:.95rem;font-weight:800;margin-bottom:5px}
.trust-cell p{color:var(--muted);font-size:.84rem;line-height:1.6}

.faq-section{padding-top:78px;background:rgba(8,12,20,.25)}
.faq-heading{
  font-size:2rem;
  font-weight:900;
  color:#EEF6FE;
  text-align:center;
  letter-spacing:.15em;
  margin-bottom:10px;
}
.faq-subhead{
  text-align:center;
  color:var(--muted);
  margin-bottom:44px;
}
.faq-ipad{
  max-width:820px;
  margin:0 auto;
}
.accordion-item{
  background:rgba(15,23,42,.54);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  margin-bottom:16px;
  overflow:hidden;
  transition:.3s;
}
.accordion-item.is-active{
  border-color:rgba(0,217,255,.3);
  box-shadow:0 12px 34px -15px rgba(0,0,0,.55);
}
.accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 24px;
  font-size:1rem;
  color:#E4EFF8;
  font-weight:700;
  border:none;
  text-decoration:none;
}
.accordion-title:hover{color:var(--cyan)}
.accordion-title::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--cyan);
  font-size:.9rem;
  transition:.3s;
  margin-left:20px;
}
.accordion-item.is-active > .accordion-title::after{content:"\f068"}
.accordion-content{
  padding:0 24px 24px 24px;
  max-width:none;
  background:transparent;
  color:#AAB9CA;
  font-size:.95rem;
  line-height:1.9;
  border:none;
}

.cta-section{
  background:var(--bg-deep);
  padding:72px 0 90px;
}
.cta-panel{
  position:relative;
  background:
    linear-gradient(rgba(13,27,42,.88),rgba(10,14,23,.94)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border:1px solid rgba(0,217,255,.22);
  border-radius:26px;
  overflow:hidden;
  padding:64px 48px;
  text-align:center;
  box-shadow:0 28px 80px -24px rgba(0,0,0,.62);
}
.cta-panel::before{
  content:"";
  position:absolute;
  width:330px;
  height:330px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,217,255,.22),transparent 70%);
  top:-180px;
  right:-80px;
}
.cta-panel h2{
  font-size:clamp(1.6rem,3vw,2.2rem);
  color:#F1F8FF;
  font-weight:900;
  line-height:1.4;
  margin-bottom:14px;
}
.cta-panel p{
  color:#AFC3D8;
  max-width:600px;
  margin:0 auto 30px;
  font-size:1rem;
}
.cta-actions{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}
.seo-cloud{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px;
}
.seo-cloud span{
  font-size:.78rem;
  color:#6F829C;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.09);
  padding:5px 11px;
  border-radius:30px;
}

.site-footer{
  background:#060A11;
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 26px;
}
.footer-layout{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.9fr;
  gap:48px;
  padding-bottom:38px;
}
.footer-brand-name{
  display:flex;
  align-items:center;
  gap:9px;
  color:#EAF2F9;
  font-weight:900;
  font-size:1.12rem;
  margin-bottom:14px;
}
.footer-about p{
  color:#8697AA;
  font-size:.9rem;
  line-height:1.9;
  max-width:340px;
}
.footer-col h4{
  font-size:.94rem;
  color:#DDEAF4;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{
  color:#8297AD;
  font-size:.88rem;
  text-decoration:none;
}
.footer-col a:hover{color:var(--cyan)}
.footer-subline{
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px;
  color:#5F7187;
  font-size:.8rem;
}

@media (max-width:1100px){
  .media-wrap{grid-template-columns:1fr;gap:20px}
  .media-panel{padding:18px 0 4px}
  .trust-strip .trust-grid{grid-template-columns:repeat(2,1fr);row-gap:22px}
}

@media (max-width:900px){
  .grid-container{padding-left:24px;padding-right:24px}
  .channel-nav{gap:6px;width:100%;padding:0;overflow-x:auto;scrollbar-width:none}
  .channel-nav::-webkit-scrollbar{display:none}
  .channel-nav a{
    flex-shrink:0;
    padding:16px 16px 15px;
  }
  .channel-nav a.active::after{
    left:16px;
    width:18px;
  }
}

@media (max-width:768px){
  .header-top .grid-container{min-height:60px}
  .logo-mark{width:34px;height:34px}
  .logo-text{font-size:1.05rem}
  .brand-logo{gap:9px}
  .auth-btn span{display:none}
  .auth-btn{padding:9px 10px}
  .hero-title{font-size:1.9rem;line-height:1.35}
  .cat-hero{padding:60px 0 54px}
  .crumb{margin-bottom:24px}
  .section{padding:50px 0 64px}
  .entry-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr;gap:18px}
  .footer-layout{grid-template-columns:1fr;gap:34px}
  .trust-strip .trust-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .logo-text{display:none}
  .brand-logo::after{color:var(--cyan);font-size:1rem;content:"kaiyun官方登录网站";font-weight:900}
  .hero-lead{font-size:.98rem}
  .btn-lg{padding:13px 22px;font-size:.95rem}
  .cta-panel{padding:38px 10px}
  .cta-actions .btn{width:100%}
  .trust-strip .trust-grid{grid-template-columns:1fr}
  .footer-subline{flex-direction:column;text-align:center}
}

/* roulang page: article */
:root{
    --c-bg:#0A0E17;
    --c-bg-2:#0D1B2A;
    --c-panel:rgba(15,23,42,.66);
    --c-line:rgba(255,255,255,.10);
    --c-line-strong:rgba(0,217,255,.35);
    --c-cyan:#00D9FF;
    --c-cyan-2:#00B4D8;
    --c-blue:#1E3A8A;
    --c-text:#F3F7FB;
    --c-text-2:#9DB2C7;
    --r-card:20px;
    --r-btn:50px;
    --shadow-card:0 15px 50px -15px rgba(0,0,0,.45);
    --font-main:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    background:var(--c-bg);
    color:var(--c-text);
    font-family:var(--font-main);
    line-height:1.7;
    position:relative;
    min-height:100vh;
}
body::before{
    content:"";
    position:fixed;
    top:-220px;
    left:50%;
    transform:translateX(-50%);
    width:1000px;
    height:520px;
    background:radial-gradient(closest-side,rgba(0,217,255,.12),transparent);
    pointer-events:none;
    z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px}
img{max-width:100%;height:auto}
h1,h2,h3,h4,h5,h6{font-weight:900;color:#fff;line-height:1.35;margin-top:0}
p{margin:0 0 1rem}
ul{margin:0}
.grid-container{max-width:1200px}
.site-header{
    background:rgba(10,14,23,.85);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    position:sticky;
    top:0;
    z-index:99;
    border-bottom:1px solid rgba(255,255,255,.08);
    box-shadow:0 8px 30px rgba(0,0,0,.25);
}
.header-top{border-bottom:1px solid rgba(255,255,255,.05)}
.header-top .grid-container{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:66px;
}
.brand-logo{
    display:inline-flex;
    align-items:center;
    gap:12px;
    color:#fff;
}
.logo-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:12px;
    background:linear-gradient(135deg,#00D9FF,#0077B6);
    color:#04101C;
    font-size:17px;
    box-shadow:0 0 20px rgba(0,217,255,.35);
}
.logo-text{
    font-size:1.22rem;
    font-weight:900;
    letter-spacing:.02em;
    white-space:nowrap;
}
.logo-text span{color:var(--c-cyan);text-shadow:0 0 14px rgba(0,217,255,.5)}
.header-auth{display:flex;align-items:center;gap:10px}
.auth-btn{
    color:var(--c-text-2);
    font-size:.9rem;
    padding:8px 12px;
    border:1px solid transparent;
    border-radius:var(--r-btn);
    display:inline-flex;
    align-items:center;
    gap:7px;
}
.auth-btn:hover{color:#fff;border-color:var(--c-line)}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--r-btn);
    font-weight:700;
    letter-spacing:.02em;
    cursor:pointer;
    border:1px solid transparent;
    transition:transform .25s,border-color .25s,box-shadow .25s,background .25s,color .25s;
    font-size:.95rem;
    line-height:1;
    padding:13px 26px;
    text-align:center;
}
.btn-sm{padding:9px 18px;font-size:.85rem}
.btn-primary{
    background:linear-gradient(135deg,#00B4D8,#0077B6);
    color:#fff;
    border-color:rgba(0,217,255,.55);
    box-shadow:0 6px 24px rgba(0,119,182,.3);
    text-shadow:0 0 10px rgba(0,217,255,.3);
}
.btn-primary:hover{
    transform:translateY(-2px);
    border-color:var(--c-cyan);
    box-shadow:0 12px 34px rgba(0,217,255,.35);
}
.btn-outline{
    border:1px solid rgba(0,217,255,.55);
    color:var(--c-cyan);
    background:rgba(0,217,255,.05);
}
.btn-outline:hover{
    transform:translateY(-2px);
    background:rgba(0,217,255,.12);
    border-color:var(--c-cyan);
    box-shadow:0 10px 30px rgba(0,217,255,.2);
}
.btn-ghost{
    border-color:var(--c-line);
    color:var(--c-text-2);
    background:rgba(255,255,255,.03);
}
.btn-ghost:hover{
    color:#fff;
    border-color:rgba(255,255,255,.3);
    transform:translateY(-2px);
}
.channel-row{border-bottom:1px solid rgba(255,255,255,.04)}
.channel-nav{
    display:flex;
    align-items:center;
    min-height:52px;
    gap:10px;
    white-space:nowrap;
    overflow-x:auto;
    scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
    color:var(--c-text-2);
    font-size:.94rem;
    padding:12px 14px;
    border-bottom:2px solid transparent;
    display:inline-flex;
    align-items:center;
    gap:7px;
}
.channel-nav a:hover{color:#fff}
.channel-nav a.active{
    color:var(--c-cyan);
    border-bottom-color:var(--c-cyan);
    text-shadow:0 0 12px rgba(0,217,255,.4);
}
main{position:relative;z-index:1}
.article-banner{
    background:linear-gradient(180deg,rgba(10,14,23,.78),rgba(13,27,42,.96)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding:54px 0 66px;
    border-bottom:1px solid rgba(255,255,255,.05);
}
.crumb-line{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:7px;
    font-size:.86rem;
    color:var(--c-text-2);
    margin-bottom:22px;
}
.crumb-line a{color:var(--c-text-2);display:inline-flex;align-items:center;gap:6px}
.crumb-line a:hover{color:var(--c-cyan)}
.crumb-sep{color:rgba(255,255,255,.3);font-size:.8rem}
.crumb-current{color:#fff;max-width:540px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:30px;
    flex-wrap:wrap;
}
.banner-info{max-width:780px}
.article-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--c-cyan);
    font-size:.82rem;
    font-weight:700;
    background:rgba(0,217,255,.1);
    border:1px solid rgba(0,217,255,.25);
    border-radius:50px;
    padding:7px 15px;
    margin-bottom:16px;
}
.banner-info h1{
    font-size:clamp(1.75rem,3.4vw,2.6rem);
    letter-spacing:.01em;
    margin:0 0 16px;
    text-shadow:0 0 30px rgba(0,217,255,.18);
}
.banner-meta{
    display:flex;
    flex-wrap:wrap;
    gap:18px;
    color:var(--c-text-2);
    font-size:.88rem;
}
.banner-meta span{display:inline-flex;align-items:center;gap:7px}
.banner-meta i{color:var(--c-cyan)}
.article-body-section{padding:0 0 60px}
.article-shell{
    position:relative;
    z-index:6;
    margin-top:-38px;
    background:var(--c-panel);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    padding:46px 42px 40px;
}
.article-content-inner{
    max-width:780px;
    margin:0 auto;
}
.article-content{
    font-size:17px;
    line-height:1.9;
    letter-spacing:.02em;
    color:#D8E3EF;
}
.article-content p{
    margin-bottom:1.4em;
    line-height:1.9;
}
.article-content strong{color:#fff;font-weight:800}
.article-content em{color:var(--c-cyan);font-style:normal}
.article-content a{
    color:var(--c-cyan);
    border-bottom:1px solid rgba(0,217,255,.4);
}
.article-content a:hover{color:#fff;border-bottom-color:var(--c-cyan)}
.article-content h2{
    font-size:1.5rem;
    font-weight:900;
    color:#fff;
    padding-left:17px;
    border-left:3px solid var(--c-cyan);
    margin:2em 0 1em;
}
.article-content h3{
    font-size:1.2rem;
    font-weight:900;
    color:#E9F7FF;
    margin:1.8em 0 .8em;
}
.article-content ul{
    padding-left:0;
    list-style:none;
    margin:0 0 1.5em;
}
.article-content ul li{
    position:relative;
    padding-left:24px;
    margin-bottom:.65em;
}
.article-content ul li::before{
    content:"";
    position:absolute;
    left:4px;
    top:.78em;
    width:8px;
    height:8px;
    border-radius:2px;
    background:var(--c-cyan);
    box-shadow:0 0 10px rgba(0,217,255,.6);
}
.article-content ol{padding-left:22px;margin:0 0 1.5em}
.article-content blockquote{
    background:#101826;
    border:1px solid rgba(0,217,255,.12);
    border-left:3px solid var(--c-cyan);
    border-radius:14px;
    padding:18px 22px;
    margin:1.6em 0;
    color:#B7CCDB;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{
    border-radius:16px;
    box-shadow:0 14px 40px rgba(0,0,0,.35);
    margin:1.4em 0;
}
.visit-tip{
    max-width:780px;
    margin:30px auto 0;
    display:flex;
    align-items:flex-start;
    gap:14px;
    background:rgba(0,217,255,.05);
    border:1px solid rgba(0,217,255,.22);
    border-radius:18px;
    padding:18px 20px;
    color:var(--c-text-2);
    font-size:.92rem;
}
.visit-tip i{
    color:var(--c-cyan);
    font-size:1.2rem;
    margin-top:3px;
}
.visit-tip strong{color:var(--c-cyan)}
.post-empty{
    text-align:center;
    padding:50px 20px 30px;
    max-width:780px;
    margin:0 auto;
}
.post-empty-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:70px;
    height:70px;
    border-radius:20px;
    background:rgba(0,217,255,.08);
    border:1px solid rgba(0,217,255,.2);
    color:var(--c-cyan);
    font-size:1.7rem;
    margin-bottom:20px;
}
.post-empty h2{font-size:1.3rem;margin-bottom:10px}
.post-empty p{color:var(--c-text-2);margin-bottom:22px}
.cta-section{padding:80px 0}
.cta-panel{
    border-radius:24px;
    overflow:hidden;
    background:linear-gradient(120deg,rgba(13,27,42,.9),rgba(10,14,23,.92));
    border:1px solid rgba(0,217,255,.22);
    box-shadow:var(--shadow-card);
}
.cta-copy{padding:46px 42px}
.cta-copy .eyebrow{
    color:var(--c-cyan);
    font-size:.82rem;
    font-weight:700;
    letter-spacing:.14em;
    margin-bottom:12px;
    display:block;
}
.cta-copy h2{
    font-size:1.75rem;
    margin:0 0 14px;
    max-width:520px;
}
.cta-copy p{color:var(--c-text-2);max-width:560px}
.cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:13px;
    margin-top:26px;
}
.cta-figure{
    min-height:280px;
    position:relative;
    background:linear-gradient(180deg,rgba(0,0,0,0) 0%,#0A0E17 100%);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:24px;
}
.cta-figure img{
    width:100%;
    height:100%;
    object-fit:cover;
    border-radius:16px;
    border:1px solid rgba(255,255,255,.1);
    box-shadow:0 18px 50px rgba(0,0,0,.45);
    max-height:300px;
}
.extended-section{padding:20px 0 90px}
.section-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    margin-bottom:22px;
    flex-wrap:wrap;
}
.section-head h2{
    font-size:1.55rem;
    margin:0;
    position:relative;
    padding-left:15px;
}
.section-head h2::before{
    content:"";
    position:absolute;
    left:0;
    top:.1em;
    bottom:.1em;
    width:4px;
    border-radius:4px;
    background:var(--c-cyan);
    box-shadow:0 0 14px rgba(0,217,255,.6);
}
.section-head a{color:var(--c-cyan);font-size:.9rem;display:inline-flex;align-items:center;gap:8px}
.section-head a:hover{color:#fff}
.related-list{
    display:grid;
    gap:13px;
}
.related-item{
    display:flex;
    align-items:center;
    gap:18px;
    padding:17px 20px;
    background:rgba(255,255,255,.035);
    border:1px solid var(--c-line);
    border-radius:15px;
    color:var(--c-text);
}
.related-item:hover{
    border-color:rgba(0,217,255,.45);
    background:rgba(0,217,255,.05);
    transform:translateY(-2px);
    box-shadow:0 12px 30px rgba(0,0,0,.3);
}
.related-tag{
    font-size:.78rem;
    color:var(--c-cyan);
    background:rgba(0,217,255,.1);
    border:1px solid rgba(0,217,255,.2);
    padding:5px 12px;
    border-radius:50px;
    white-space:nowrap;
    flex-shrink:0;
}
.related-main{flex:1}
.related-main strong{display:block;color:#fff;font-weight:800}
.related-main span{color:var(--c-text-2);font-size:.86rem}
.related-arrow{color:var(--c-text-2);flex-shrink:0;font-size:1rem}
.related-item:hover .related-arrow{color:var(--c-cyan);transform:translateX(4px);transition:transform .3s}
.back-actions{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
    margin-top:34px;
}
.site-footer{
    background:#070B11;
    border-top:1px solid rgba(255,255,255,.07);
    padding:52px 0 26px;
    position:relative;
    z-index:1;
}
.footer-layout{
    display:grid;
    grid-template-columns:1.5fr .85fr .85fr;
    gap:40px;
    padding-bottom:38px;
}
.footer-brand-name{
    color:#fff;
    font-size:1.18rem;
    font-weight:900;
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:13px;
}
.footer-brand-name .logo-mark{
    width:30px;
    height:30px;
    border-radius:9px;
    font-size:13px;
}
.footer-about p{
    color:#7E92A6;
    font-size:.9rem;
    line-height:1.75;
    max-width:420px;
}
.footer-col h4{
    color:#fff;
    font-size:.95rem;
    margin-bottom:14px;
}
.footer-col ul{list-style:none;padding:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#7E92A6;font-size:.9rem}
.footer-col a:hover{color:var(--c-cyan)}
.footer-subline{
    border-top:1px solid rgba(255,255,255,.06);
    padding-top:20px;
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px;
    color:#5D7387;
    font-size:.8rem;
}
@media(max-width:1024px){
    .footer-layout{grid-template-columns:1fr 1fr;gap:26px}
    .footer-about{grid-column:1/-1}
}
@media(max-width:768px){
    .header-top .grid-container{min-height:58px}
    .logo-text{font-size:1.05rem;white-space:normal}
    .auth-btn{display:none}
    .btn-sm{padding:8px 16px}
    .channel-nav a{font-size:.9rem;padding:10px 11px}
    .article-banner{padding:42px 0 54px}
    .article-shell{margin-top:-22px;padding:30px 20px}
    .cta-copy{padding:34px 24px}
    .cta-figure{min-height:auto}
    .related-item{flex-wrap:wrap;gap:10px}
    .related-main{flex:1 1 100%}
}
@media(max-width:520px){
    .grid-container{padding-left:16px;padding-right:16px}
    .logo-mark{width:33px;height:33px}
    .logo-text{font-size:.95rem}
    .header-auth .btn-outline{font-size:.8rem;padding:8px 13px}
    .channel-nav a{font-size:.85rem}
    .banner-info h1{font-size:1.4rem}
    .banner-meta{gap:10px}
    .article-shell{padding:24px 16px;border-radius:16px}
    .article-content{font-size:16px}
    .cta-actions .btn{width:100%}
    .back-actions .btn{width:100%}
    .footer-layout{grid-template-columns:1fr;gap:24px}
    .footer-about{grid-column:auto}
    .footer-subline{flex-direction:column}
}

/* roulang page: category2 */
:root {
            --bg-deep: #0A0E17;
            --bg-blue: #0D1B2A;
            --bg-card: rgba(15, 23, 42, 0.72);
            --glass: rgba(255, 255, 255, 0.05);
            --border-light: rgba(255, 255, 255, 0.12);
            --cyan: #00D9FF;
            --cyan-dark: #0077B6;
            --blue-deep: #1E3A8A;
            --text-main: #EAF2F9;
            --text-muted: #9DADC0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow: 0 15px 50px -15px rgba(0, 0, 0, 0.65);
            --shadow-cyan: 0 0 28px rgba(0, 217, 255, 0.28);
            --ease: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            background:
                radial-gradient(circle at 12% -5%, rgba(0, 217, 255, 0.13), transparent 30%),
                radial-gradient(circle at 90% 35%, rgba(13, 27, 42, 0.95), transparent 40%),
                #0A0E17;
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.75;
            letter-spacing: 0.02em;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: #6fe9ff;
        }

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

        ul, ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        p {
            margin: 0 0 16px;
        }

        h1, h2, h3, h4, h5 {
            margin: 0 0 14px;
            font-weight: 900;
            line-height: 1.3;
        }

        button, input, summary {
            font-family: inherit;
        }

        ::selection {
            background: rgba(0, 217, 255, 0.25);
            color: #fff;
        }

        .grid-container {
            max-width: 1240px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 23, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 12px 40px -18px rgba(0, 0, 0, 0.85);
        }

        .header-top {
            padding: 12px 0;
        }

        .header-top .grid-container,
        .channel-row .grid-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 4px 0;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(0, 119, 182, 0.15));
            border: 1px solid rgba(0, 217, 255, 0.45);
            color: var(--cyan);
            font-size: 17px;
            box-shadow: 0 0 16px rgba(0, 217, 255, 0.14);
        }

        .logo-text {
            font-size: 21px;
            font-weight: 900;
            color: #eaf6ff;
            letter-spacing: 0.02em;
        }

        .logo-text span {
            color: var(--cyan);
        }

        .header-auth {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .auth-btn {
            color: var(--text-muted);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .auth-btn i {
            color: var(--cyan);
        }

        .auth-btn:hover {
            color: #eaf6ff;
        }

        .channel-row {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            background: rgba(5, 9, 16, 0.32);
            padding: 6px 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 34px;
            min-height: 46px;
            flex-wrap: wrap;
        }

        .channel-nav a {
            position: relative;
            color: #b8c5d4;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 2px;
            display: inline-flex;
            align-items: center;
            transition: var(--ease);
        }

        .channel-nav a:hover {
            color: #eaf6ff;
        }

        .channel-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 4px;
            width: 0;
            height: 2px;
            background: var(--cyan);
            border-radius: 30px;
            transition: var(--ease);
            box-shadow: 0 0 10px rgba(0, 217, 255, 0.8);
        }

        .channel-nav a:hover::after,
        .channel-nav a.active::after {
            width: 24px;
        }

        .channel-nav a.active {
            color: var(--cyan);
            text-shadow: 0 0 8px rgba(0, 217, 255, 0.3);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 50px;
            border: 1px solid transparent;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 700;
            line-height: 1.2;
            cursor: pointer;
            transition: var(--ease);
            text-align: center;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, #00B4D8, #0077B6);
            color: #fff;
            border-color: rgba(0, 217, 255, 0.5);
            box-shadow: 0 12px 32px -10px rgba(0, 183, 216, 0.45);
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #00D9FF, #0086c0);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 18px 40px -10px rgba(0, 217, 255, 0.55);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(0, 217, 255, 0.5);
            color: var(--cyan);
        }

        .btn-outline:hover {
            background: rgba(0, 217, 255, 0.1);
            color: var(--cyan);
            border-color: var(--cyan);
            box-shadow: var(--shadow-cyan);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 7px 17px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        .btn-light {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #eaf6ff;
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 78px 0 72px;
            overflow: hidden;
            background:
                linear-gradient(180deg, rgba(10, 14, 23, 0.55), rgba(10, 14, 23, 0.92)),
                radial-gradient(circle at 75% 40%, rgba(0, 217, 255, 0.15), transparent 36%),
                url("/assets/images/backpic/back-1.png") center/cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .category-hero .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .category-hero .breadcrumb a {
            color: var(--text-muted);
        }

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

        .hero-kicker {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .hero-kicker i {
            font-size: 16px;
        }

        .category-hero h1 {
            font-size: clamp(34px, 5vw, 62px);
            line-height: 1.15;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
            background: linear-gradient(120deg, #ffffff 10%, var(--cyan) 90%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .category-hero .hero-lead {
            font-size: 17px;
            max-width: 680px;
            color: #c4d2de;
            margin-bottom: 24px;
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 26px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-tags li {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.13);
            padding: 7px 14px;
            border-radius: 50px;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: #cde3f3;
            backdrop-filter: blur(8px);
        }

        .hero-tags li i {
            color: var(--cyan);
        }

        .hero-selfcheck {
            margin-left: auto;
            max-width: 480px;
        }

        .glass-panel {
            background: rgba(15, 23, 42, 0.6);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }

        .glass-panel::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(0, 217, 255, 0.15);
            filter: blur(60px);
        }

        .glass-panel .panel-title {
            font-size: 19px;
            font-weight: 800;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .check-list {
            margin-bottom: 22px;
        }

        .check-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.09);
            font-size: 14px;
            color: #d3dde8;
        }

        .check-list li:last-child {
            border-bottom: none;
        }

        .check-list li .num {
            width: 24px;
            height: 24px;
            flex: 0 0 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(0, 217, 255, 0.1);
            color: var(--cyan);
            font-size: 12px;
            font-weight: 800;
            border: 1px solid rgba(0, 217, 255, 0.3);
        }

        .glass-panel .panel-btn {
            display: flex;
            justify-content: center;
            margin-top: 18px;
        }

        /* ===== Section common ===== */
        .section-block {
            padding: 82px 0;
        }

        .section-alt {
            background: linear-gradient(180deg, rgba(13, 27, 42, 0.5), rgba(10, 14, 23, 0.2));
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--cyan);
            font-size: 14px;
            letter-spacing: 0.14em;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 12px var(--cyan);
        }

        .section-title {
            font-size: clamp(26px, 3.6vw, 42px);
            line-height: 1.25;
            max-width: 720px;
            margin-bottom: 18px;
        }

        .section-desc {
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.95;
            font-size: 16px;
        }

        .section-head {
            margin-bottom: 44px;
        }

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

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

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

        /* ===== Trust bar ===== */
        .trust-band {
            padding: 34px 0;
            background: linear-gradient(90deg, rgba(13, 27, 42, 0.9), rgba(4, 12, 24, 0.9), rgba(13, 27, 42, 0.9));
            border-top: 1px solid rgba(0, 217, 255, 0.2);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .trust-item {
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.07);
            min-height: 128px;
            transition: var(--ease);
        }

        .trust-item:hover {
            background: rgba(0, 217, 255, 0.05);
            border-color: rgba(0, 217, 255, 0.25);
        }

        .trust-item h3 {
            font-size: 18px;
            color: #e8f2fa;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .trust-item h3 i {
            color: var(--cyan);
            font-size: 17px;
        }

        .trust-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Feature modules ===== */
        .feature-row {
            align-items: stretch;
            gap: 0;
        }

        .feature-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            min-height: 320px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

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

        .feature-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0) 20%, rgba(10, 14, 23, 0.95) 100%);
        }

        .feature-media .media-content {
            position: absolute;
            z-index: 2;
            left: 24px;
            right: 24px;
            bottom: 22px;
            color: #fff;
        }

        .feature-media .media-content h3 {
            font-size: 24px;
            margin-bottom: 8px;
        }

        .feature-media .media-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            line-height: 1.7;
        }

        .detail-panel {
            background: rgba(15, 23, 42, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 34px 34px 30px;
            height: 100%;
            box-shadow: 0 15px 45px -20px rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            transition: var(--ease);
        }

        .detail-panel:hover {
            border-color: rgba(0, 217, 255, 0.25);
        }

        .detail-panel h3 {
            font-size: 21px;
            margin-bottom: 12px;
        }

        .detail-panel .panel-desc {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 22px;
        }

        .point-list li {
            position: relative;
            padding: 10px 0 10px 30px;
            color: #cfdce8;
            line-height: 1.75;
            font-size: 15px;
        }

        .point-list li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 11px;
            color: var(--cyan);
            font-size: 15px;
        }

        /* ===== Process ===== */
        .process-zone {
            background: linear-gradient(180deg, #0d1b2a, #0a0e17);
            border-top: 1px solid rgba(0, 217, 255, 0.18);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 76px 0;
            position: relative;
        }

        .process-zone::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 15% 60%, rgba(0, 217, 255, 0.12), transparent 30%);
            pointer-events: none;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .process-step {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: var(--ease);
            backdrop-filter: blur(10px);
        }

        .process-step:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 217, 255, 0.4);
            box-shadow: var(--shadow-cyan);
        }

        .process-step .step-index {
            font-size: 34px;
            font-weight: 900;
            opacity: 0.15;
            color: var(--cyan);
            position: absolute;
            top: 10px;
            right: 16px;
        }

        .process-step .step-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(0, 217, 255, 0.1);
            border: 1px solid rgba(0, 217, 255, 0.35);
            color: var(--cyan);
            border-radius: 14px;
            margin-bottom: 18px;
            font-size: 17px;
        }

        .process-step h3 {
            font-size: 17px;
            margin-bottom: 11px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-zone {
            padding: 80px 0;
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(15, 23, 42, 0.5);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--ease);
        }

        .faq-item:hover {
            border-color: rgba(0, 217, 255, 0.3);
        }

        .faq-item summary {
            cursor: pointer;
            list-style: none;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            color: #eaf2f9;
            transition: var(--ease);
        }

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

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--cyan);
            transition: var(--ease);
            flex: 0 0 auto;
        }

        .faq-item[open] summary {
            color: var(--cyan);
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.9;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            margin-top: -2px;
        }

        .faq-item .faq-answer p {
            margin: 14px 0 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(180deg, rgba(10, 14, 23, 0.2), rgba(10, 14, 23, 0.85)), url("/assets/images/backpic/back-2.png") center/cover no-repeat;
            position: relative;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .cta-panel {
            background: rgba(15, 23, 42, 0.72);
            border: 1px solid rgba(0, 217, 255, 0.22);
            backdrop-filter: blur(14px);
            border-radius: 30px;
            padding: 52px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
            box-shadow: var(--shadow);
        }

        .cta-panel::before,
        .cta-panel::after {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            background: rgba(0, 217, 255, 0.16);
            filter: blur(100px);
            border-radius: 50%;
        }

        .cta-panel::before {
            top: -160px;
            left: -60px;
        }

        .cta-panel::after {
            bottom: -140px;
            right: -50px;
        }

        .cta-panel > * {
            position: relative;
            z-index: 2;
        }

        .cta-panel h2 {
            font-size: clamp(28px, 4vw, 44px);
            margin-bottom: 14px;
        }

        .cta-panel p {
            color: #b7c8d8;
            max-width: 650px;
            margin: 0 auto 26px;
            font-size: 16px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== Keyword cloud ===== */
        .keyword-zone {
            background: rgba(13, 27, 42, 0.44);
            padding: 60px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .keyword-zone h3 {
            font-size: 20px;
            text-align: center;
            margin-bottom: 20px;
            color: #e8f2fa;
        }

        .keywords {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .keywords span {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #b8c9d8;
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 13px;
            transition: var(--ease);
        }

        .keywords span:hover {
            color: var(--cyan);
            border-color: rgba(0, 217, 255, 0.4);
            background: rgba(0, 217, 255, 0.06);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #07101c;
            border-top: 1px solid rgba(0, 217, 255, 0.14);
            padding: 58px 0 30px;
            color: #8799aa;
        }

        .footer-layout {
            display: grid;
            grid-template-columns: 2fr 1fr 1.3fr;
            gap: 44px;
            padding-bottom: 34px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: #e8f2fa;
            margin-bottom: 14px;
        }

        .footer-about > p {
            color: #889baa;
            font-size: 14px;
            line-height: 1.9;
            max-width: 340px;
            margin: 0;
        }

        .footer-col h4 {
            color: #dce7ef;
            font-size: 15px;
            font-weight: 800;
            margin-bottom: 17px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col a {
            color: #8395a5;
            font-size: 14px;
            transition: var(--ease);
        }

        .footer-col a:hover {
            color: var(--cyan);
            padding-left: 3px;
        }

        .footer-subline {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 22px;
            font-size: 13px;
            color: #718394;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .section-block {
                padding: 64px 0;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-right {
                margin-top: 24px;
                max-width: none;
            }

            .trust-item p {
                font-size: 13px;
            }
        }

        @media screen and (max-width: 768px) {
            .header-top .grid-container {
                flex-wrap: nowrap;
            }

            .header-auth {
                gap: 8px;
            }

            .auth-btn span {
                display: none;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
            }

            .channel-nav {
                gap: 22px;
                flex-wrap: nowrap;
                overflow-x: auto;
                white-space: nowrap;
                scrollbar-width: thin;
                scrollbar-color: rgba(0, 217, 255, 0.3) transparent;
            }

            .channel-nav::-webkit-scrollbar {
                height: 2px;
            }

            .channel-nav::-webkit-scrollbar-thumb {
                background: rgba(0, 217, 255, 0.3);
                border-radius: 10px;
            }

            .category-hero {
                padding: 48px 0 40px;
            }

            .category-hero h1 {
                font-size: 36px;
            }

            .trust-item {
                min-height: auto;
            }

            .footer-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .cta-panel {
                padding: 38px 22px;
            }
        }

        @media screen and (max-width: 520px) {
            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
            }

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

            .section-block {
                padding: 50px 0;
            }

            .detail-panel {
                padding: 26px 20px;
            }

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

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

            .trust-band .grid-x .cell {
                width: 50%;
                flex: 0 0 50%;
                max-width: 50%;
            }

            .trust-item {
                padding: 14px;
            }

            .trust-item h3 {
                font-size: 15px;
                flex-direction: column;
                align-items: flex-start;
                gap: 5px;
            }

            .trust-item p {
                font-size: 12px;
                line-height: 1.6;
            }

            .category-hero .breadcrumb {
                font-size: 12px;
            }

            .faq-item summary {
                font-size: 15px;
                padding: 16px 18px;
            }

            .faq-item .faq-answer {
                font-size: 14px;
                padding: 0 18px 18px;
            }

            .footer-subline {
                flex-direction: column;
            }

            .section-title {
                font-size: 25px;
            }
        }