@charset "UTF-8";

:root {
    --ink: #101733;
    --ink-soft: #1b2448;
    --ink-light: #2f3b68;
    --paper: #fffaf7;
    --paper-soft: #f7f0ed;
    --white: #ffffff;
    --coral: #ff6f7d;
    --coral-dark: #df495e;
    --peach: #ffb6ab;
    --sun: #ffd379;
    --teal: #66d8cf;
    --lavender: #aa9cff;
    --muted: #6c7188;
    --line: rgba(16, 23, 51, .12);
    --line-light: rgba(255, 255, 255, .15);
    --shadow: 0 24px 70px rgba(18, 24, 52, .14);
    --shadow-small: 0 10px 30px rgba(18, 24, 52, .10);
    --radius-xl: 36px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --ease: cubic-bezier(.23, 1, .32, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: .018;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
input {
    font: inherit;
}

button,
a,
input,
summary {
    -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--teal);
    outline-offset: 3px;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    transform: translateY(-160%);
    z-index: 10000;
    padding: 10px 16px;
    border-radius: 999px;
    color: var(--white);
    background: var(--ink);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    color: var(--white);
    background: rgba(10, 15, 38, .92);
    backdrop-filter: blur(18px);
}

.nav-wrap {
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 32px;
}

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

.brand img {
    width: 184px;
    height: auto;
}

.site-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 26px;
}

.site-nav a {
    position: relative;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .04em;
}

.site-nav a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -9px;
    left: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--coral);
    transform: scaleX(0);
    transition: transform .2s var(--ease);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
    transform: scaleX(1);
}

.nav-cta {
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
}

.menu-button {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line-light);
    border-radius: 50%;
    color: var(--white);
    background: transparent;
}

.search-band {
    color: var(--white);
    background: var(--ink-soft);
}

.search-inner {
    min-height: 70px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
}

.search-kicker {
    color: var(--peach);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
}

.search-form input {
    width: 100%;
    min-height: 42px;
    padding: 8px 116px 8px 18px;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 999px;
    color: var(--white);
    background: rgba(255, 255, 255, .07);
}

.search-form input::placeholder {
    color: rgba(255, 255, 255, .62);
}

.search-form button {
    position: absolute;
    right: 5px;
    min-width: 102px;
    padding: 7px 15px;
    border: 0;
    border-radius: 999px;
    color: var(--ink);
    background: var(--peach);
    font-weight: 800;
    cursor: pointer;
}

.search-note {
    color: rgba(255, 255, 255, .55);
    font-size: 12px;
}

.hero {
    position: relative;
    min-height: 760px;
    overflow: hidden;
    color: var(--white);
    background: var(--ink);
}

.hero-media,
.hero-media::after {
    position: absolute;
    inset: 0;
}

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

.hero-media::after {
    content: "";
    background:
        linear-gradient(90deg, rgba(8, 13, 34, .98) 0%, rgba(8, 13, 34, .88) 35%, rgba(8, 13, 34, .18) 72%, rgba(8, 13, 34, .35) 100%),
        linear-gradient(0deg, rgba(8, 13, 34, .82), transparent 52%);
}

.hero-grid {
    position: relative;
    z-index: 1;
    min-height: 690px;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .7fr);
    align-items: center;
    gap: 80px;
    padding-block: 88px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    color: var(--peach);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 42px;
    height: 2px;
    background: currentColor;
}

.hero h1 {
    max-width: 730px;
    margin: 0;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: clamp(48px, 7vw, 92px);
    font-weight: 900;
    letter-spacing: -.055em;
    line-height: .99;
}

.hero h1 em {
    color: var(--coral);
    font-style: normal;
}

.hero-lead {
    max-width: 620px;
    margin: 28px 0 30px;
    color: rgba(255, 255, 255, .78);
    font-size: clamp(17px, 2vw, 20px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 21px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 800;
    transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: scale(.97);
}

.btn-primary {
    color: var(--ink);
    background: var(--coral);
}

.btn-primary:hover {
    background: var(--peach);
}

.btn-ghost {
    border-color: rgba(255, 255, 255, .28);
    color: var(--white);
    background: rgba(255, 255, 255, .08);
}

.btn-light {
    border-color: var(--line);
    background: var(--white);
}

.hero-stats {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--line-light);
}

.hero-stat {
    padding: 22px 18px 0 0;
}

.hero-stat strong {
    display: block;
    font-family: "Noto Serif SC", serif;
    font-size: 29px;
}

.hero-stat span {
    color: rgba(255, 255, 255, .55);
    font-size: 12px;
}

.hero-feature {
    align-self: end;
    margin-bottom: 10px;
    padding: 18px;
    border: 1px solid var(--line-light);
    border-radius: 28px;
    background: rgba(12, 18, 43, .68);
    backdrop-filter: blur(18px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .25);
}

.hero-feature-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 14px;
}

.live-dot {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--peach);
    font-size: 12px;
    font-weight: 800;
}

.live-dot::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--coral);
    box-shadow: 0 0 0 7px rgba(255, 111, 125, .15);
}

.hero-feature h2 {
    margin: 0 0 10px;
    font-size: 23px;
    line-height: 1.3;
}

.hero-feature p {
    margin: 0;
    color: rgba(255, 255, 255, .65);
    font-size: 14px;
}

.hero-ticket {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 17px;
    border-top: 1px dashed rgba(255, 255, 255, .2);
    font-size: 13px;
}

.ticker {
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: var(--white);
}

.ticker-track {
    display: flex;
    width: max-content;
    animation: ticker 28s linear infinite;
}

.ticker-group {
    display: flex;
    gap: 36px;
    padding: 14px 18px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
}

.ticker-group span::before {
    content: "◆";
    margin-right: 12px;
    color: var(--coral);
}

@keyframes ticker {
    to { transform: translateX(-50%); }
}

.section {
    padding-block: 100px;
}

.section-soft {
    background: var(--paper-soft);
}

.section-dark {
    color: var(--white);
    background: var(--ink);
}

.section-heading {
    margin-bottom: 44px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .55fr);
    align-items: end;
    gap: 50px;
}

.section-heading h2 {
    margin: 0;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1.12;
    letter-spacing: -.04em;
}

.section-heading p {
    margin: 0;
    color: var(--muted);
}

.section-dark .section-heading p {
    color: rgba(255, 255, 255, .62);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.video-card {
    grid-column: span 4;
    min-width: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    color: var(--ink);
    background: var(--white);
    box-shadow: var(--shadow-small);
    transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}

.video-card:first-child,
.video-card:nth-child(5) {
    grid-column: span 8;
}

.video-card:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow);
}

.video-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--ink-soft);
}

.video-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s var(--ease);
}

.video-card:hover .video-cover img {
    transform: scale(1.035);
}

.video-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(10, 16, 37, .65), transparent 55%);
}

.play-badge {
    position: absolute;
    z-index: 2;
    left: 18px;
    bottom: 18px;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--ink);
    background: var(--coral);
    box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
}

.play-badge::before {
    content: "▶";
    margin-left: 3px;
    font-size: 15px;
}

.duration {
    position: absolute;
    z-index: 2;
    right: 14px;
    bottom: 14px;
    padding: 5px 9px;
    border-radius: 7px;
    color: var(--white);
    background: rgba(9, 14, 34, .8);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.video-body {
    padding: 22px;
}

.video-meta {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    color: var(--coral-dark);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .08em;
}

.video-card h3 {
    margin: 0 0 10px;
    font-size: 20px;
    line-height: 1.35;
}

.video-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.engagement {
    margin-top: 17px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.tag {
    padding: 5px 10px;
    border-radius: 999px;
    color: var(--ink-light);
    background: var(--paper-soft);
    font-size: 11px;
    font-weight: 700;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.service-card {
    position: relative;
    min-height: 280px;
    padding: 28px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--white);
}

.service-card::before {
    content: attr(data-index);
    position: absolute;
    right: 20px;
    top: 8px;
    color: rgba(255, 111, 125, .13);
    font-family: Georgia, serif;
    font-size: 86px;
    font-weight: 900;
    line-height: 1;
}

.service-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    color: var(--ink);
    background: var(--peach);
    font-weight: 900;
}

.service-card h3 {
    margin: 50px 0 12px;
    font-size: 21px;
}

.service-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.service-link {
    display: inline-flex;
    margin-top: 20px;
    color: var(--coral-dark);
    font-weight: 800;
}

.ai-showcase {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 30px;
    align-items: stretch;
}

.ai-media {
    min-height: 590px;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

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

.ai-panel {
    padding: clamp(28px, 5vw, 56px);
    border: 1px solid var(--line-light);
    border-radius: var(--radius-xl);
    background: var(--ink-soft);
}

.ai-panel h2 {
    margin: 0 0 18px;
    font-family: "Noto Serif SC", serif;
    font-size: clamp(38px, 5vw, 62px);
    line-height: 1.08;
}

.ai-panel > p {
    color: rgba(255, 255, 255, .64);
}

.ai-list {
    margin-top: 38px;
    display: grid;
    gap: 12px;
}

.ai-item {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 15px;
    padding: 17px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .06);
}

.ai-item strong,
.ai-item span {
    display: block;
}

.ai-item span {
    margin-top: 4px;
    color: rgba(255, 255, 255, .52);
    font-size: 13px;
}

.ai-number {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--ink);
    background: var(--teal);
    font-weight: 900;
}

.community-layout {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 28px;
    align-items: start;
}

.community-intro {
    position: sticky;
    top: 120px;
    padding: 38px;
    border-radius: var(--radius-xl);
    color: var(--white);
    background: var(--ink);
}

.community-intro h2 {
    margin: 0 0 16px;
    font-family: "Noto Serif SC", serif;
    font-size: 44px;
    line-height: 1.15;
}

.community-intro p {
    color: rgba(255, 255, 255, .65);
}

.community-rules {
    margin: 28px 0 0;
    padding: 24px 0 0;
    border-top: 1px solid var(--line-light);
    list-style: none;
}

.community-rules li {
    margin: 10px 0;
    padding-left: 24px;
    position: relative;
    font-size: 14px;
}

.community-rules li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--teal);
    font-weight: 900;
}

.community-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.community-card {
    min-height: 238px;
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--white);
}

.community-card:nth-child(2),
.community-card:nth-child(5) {
    transform: translateY(28px);
}

.community-card .status {
    display: inline-flex;
    padding: 5px 10px;
    border-radius: 999px;
    color: #176861;
    background: #dbf7f2;
    font-size: 11px;
    font-weight: 800;
}

.community-card h3 {
    margin: 32px 0 10px;
    font-size: 20px;
}

.community-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.community-card b {
    display: block;
    margin-top: 18px;
    color: var(--coral-dark);
    font-size: 13px;
}

.expert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.expert-card {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow-small);
}

.expert-photo {
    aspect-ratio: 1 / 1.08;
    overflow: hidden;
    background: var(--ink-soft);
}

.expert-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-body {
    padding: 26px;
}

.expert-role {
    color: var(--coral-dark);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .12em;
}

.expert-card h3 {
    margin: 7px 0 6px;
    font-family: "Noto Serif SC", serif;
    font-size: 26px;
}

.expert-card p,
.expert-card li {
    color: var(--muted);
    font-size: 13px;
}

.expert-card ul {
    margin: 16px 0;
    padding-left: 18px;
}

.expert-actions {
    display: flex;
    gap: 12px;
    padding-top: 17px;
    border-top: 1px solid var(--line);
}

.text-link {
    color: var(--coral-dark);
    font-size: 13px;
    font-weight: 800;
}

.logo-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

.partner-logo {
    min-height: 92px;
    display: grid;
    place-items: center;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 18px;
    color: var(--ink-light);
    background: var(--white);
    text-align: center;
    font-family: "Noto Serif SC", serif;
    font-weight: 900;
}

.partner-logo small {
    display: block;
    color: var(--muted);
    font-family: sans-serif;
    font-size: 10px;
    font-weight: 500;
}

.join-grid {
    margin-top: 70px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.join-step {
    padding: 26px;
    border-top: 3px solid var(--coral);
    background: var(--paper-soft);
}

.join-step b {
    color: var(--coral-dark);
    font-family: Georgia, serif;
    font-size: 32px;
}

.join-step h3 {
    margin: 38px 0 8px;
}

.join-step p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
}

.review-card {
    grid-column: span 4;
    min-height: 235px;
    padding: 25px;
    border-radius: var(--radius-lg);
    color: var(--white);
    background: var(--ink-soft);
}

.review-card:nth-child(2),
.review-card:nth-child(6) {
    background: var(--coral-dark);
}

.review-card:nth-child(4) {
    grid-column: span 6;
}

.review-card:nth-child(5) {
    grid-column: span 6;
}

.stars {
    color: var(--sun);
    letter-spacing: .16em;
}

.review-card blockquote {
    margin: 24px 0;
    font-family: "Noto Serif SC", serif;
    font-size: 18px;
    line-height: 1.7;
}

.review-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    color: rgba(255, 255, 255, .62);
    font-size: 12px;
}

.faq-layout {
    display: grid;
    grid-template-columns: .6fr 1.4fr;
    gap: 60px;
}

.faq-intro h2 {
    margin: 0;
    font-family: "Noto Serif SC", serif;
    font-size: 48px;
    line-height: 1.15;
}

.faq-list {
    border-top: 1px solid var(--line);
}

.faq-list details {
    border-bottom: 1px solid var(--line);
}

.faq-list summary {
    position: relative;
    padding: 24px 46px 24px 0;
    cursor: pointer;
    list-style: none;
    font-size: 17px;
    font-weight: 800;
}

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

.faq-list summary::after {
    content: "+";
    position: absolute;
    right: 4px;
    font-size: 26px;
    font-weight: 400;
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-answer {
    padding: 0 42px 24px 0;
    color: var(--muted);
}

.contact-panel {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--ink);
    box-shadow: var(--shadow);
}

.contact-media {
    min-height: 570px;
}

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

.contact-info {
    padding: clamp(34px, 6vw, 68px);
    color: var(--white);
}

.contact-info h2 {
    margin: 0 0 15px;
    font-family: "Noto Serif SC", serif;
    font-size: 44px;
    line-height: 1.15;
}

.contact-info > p {
    color: rgba(255, 255, 255, .6);
}

.contact-list {
    margin: 30px 0;
    display: grid;
    gap: 15px;
}

.contact-item {
    display: grid;
    grid-template-columns: 86px 1fr;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-light);
    font-size: 14px;
}

.contact-item span:first-child {
    color: var(--peach);
    font-weight: 800;
}

.platform-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.platform-links a,
.platform-links button {
    padding: 8px 12px;
    border: 1px solid var(--line-light);
    border-radius: 999px;
    color: var(--white);
    background: rgba(255, 255, 255, .06);
    font-size: 12px;
}

.share-bar {
    padding: 26px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--white);
}

.share-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.share-title strong,
.share-title span {
    display: block;
}

.share-title span {
    color: var(--muted);
    font-size: 12px;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.share-button {
    padding: 9px 15px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--paper);
    cursor: pointer;
    font-weight: 700;
}

.site-footer {
    padding: 70px 0 28px;
    color: var(--white);
    background: #090f27;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.25fr .7fr .7fr 1fr;
    gap: 45px;
}

.footer-brand img {
    width: 210px;
}

.footer-brand p {
    max-width: 420px;
    color: rgba(255, 255, 255, .55);
    font-size: 13px;
}

.footer-col h3 {
    margin: 0 0 17px;
    color: var(--peach);
    font-size: 13px;
    letter-spacing: .12em;
}

.footer-col a,
.footer-col span {
    display: block;
    margin: 9px 0;
    color: rgba(255, 255, 255, .63);
    font-size: 13px;
}

.qr-pair {
    display: flex;
    gap: 12px;
}

.qr-box {
    width: 112px;
}

.qr-box img {
    width: 100%;
    border-radius: 12px;
}

.qr-box span {
    margin-top: 7px;
    text-align: center;
    font-size: 11px;
}

.footer-bottom {
    margin-top: 58px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-top: 24px;
    border-top: 1px solid var(--line-light);
    color: rgba(255, 255, 255, .4);
    font-size: 12px;
}

.toast {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 999;
    max-width: min(380px, calc(100% - 44px));
    padding: 14px 18px;
    border-radius: 14px;
    color: var(--white);
    background: var(--ink);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(18px);
    pointer-events: none;
    transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.breadcrumb {
    padding: 18px 0;
    color: var(--muted);
    font-size: 13px;
}

.breadcrumb a {
    color: var(--coral-dark);
}

.page-hero {
    padding: 80px 0;
    color: var(--white);
    background: var(--ink);
}

.page-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 54px;
}

.page-hero h1 {
    margin: 0 0 22px;
    font-family: "Noto Serif SC", serif;
    font-size: clamp(44px, 7vw, 78px);
    line-height: 1.05;
}

.page-hero p {
    max-width: 690px;
    color: rgba(255, 255, 255, .66);
    font-size: 17px;
}

.page-hero img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.feature-box {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--white);
}

.feature-box h3 {
    margin: 0 0 8px;
}

.feature-box p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.tool-shell {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    min-height: 640px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: var(--white);
    box-shadow: var(--shadow-small);
}

.tool-sidebar {
    padding: 28px;
    color: var(--white);
    background: var(--ink);
}

.tool-sidebar a {
    display: block;
    margin: 8px 0;
    padding: 11px 13px;
    border-radius: 12px;
    color: rgba(255, 255, 255, .65);
}

.tool-sidebar a.active {
    color: var(--ink);
    background: var(--coral);
}

.tool-main {
    padding: clamp(25px, 5vw, 50px);
}

.tool-dropzone {
    min-height: 300px;
    display: grid;
    place-items: center;
    padding: 30px;
    border: 2px dashed rgba(16, 23, 51, .18);
    border-radius: 24px;
    background: var(--paper-soft);
    text-align: center;
}

.tool-dropzone strong {
    display: block;
    font-size: 22px;
}

.watch-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 28px;
    align-items: start;
}

.video-player {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: #050814;
    box-shadow: var(--shadow);
}

.video-player video {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #050814;
}

.watch-copy {
    padding: 28px 0;
}

.watch-copy h1 {
    margin: 0 0 12px;
    font-family: "Noto Serif SC", serif;
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.15;
}

.watch-aside {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--white);
}

.watch-aside h2 {
    margin-top: 0;
}

.related-link {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 12px;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
}

.related-link img {
    width: 92px;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 10px;
}

.related-link strong {
    font-size: 13px;
    line-height: 1.4;
}

.related-link span {
    display: block;
    margin-top: 5px;
    color: var(--muted);
    font-size: 11px;
}

.a3iq9yl {
    margin: 22px auto;
    max-width: 980px;
    min-height: 84px;
    display: grid;
    place-items: center;
    border: 1px dashed var(--line);
    border-radius: 16px;
    color: var(--muted);
    background: var(--paper-soft);
    font-size: 12px;
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .55s var(--ease), transform .55s var(--ease);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 980px) {
    .site-nav {
        position: absolute;
        top: 76px;
        right: 20px;
        left: 20px;
        display: none;
        padding: 20px;
        border: 1px solid var(--line-light);
        border-radius: 20px;
        background: rgba(10, 15, 38, .98);
        box-shadow: var(--shadow);
    }

    .site-nav.is-open {
        display: grid;
    }

    .menu-button {
        display: block;
        margin-left: auto;
    }

    .search-inner {
        grid-template-columns: 1fr;
        gap: 8px;
        padding-block: 13px;
    }

    .search-note {
        display: none;
    }

    .hero-grid,
    .page-hero-grid,
    .ai-showcase,
    .contact-panel,
    .faq-layout,
    .watch-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .hero-grid {
        min-height: 760px;
        align-content: center;
        gap: 40px;
    }

    .hero-feature {
        max-width: 480px;
    }

    .section-heading {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .video-card,
    .video-card:first-child,
    .video-card:nth-child(5) {
        grid-column: span 6;
    }

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

    .community-layout {
        grid-template-columns: 1fr;
    }

    .community-intro {
        position: static;
    }

    .logo-wall {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .review-card,
    .review-card:nth-child(4),
    .review-card:nth-child(5) {
        grid-column: span 6;
    }

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

@media (max-width: 680px) {
    .container {
        width: min(100% - 28px, 1180px);
    }

    .brand img {
        width: 158px;
    }

    .hero-grid {
        min-height: 690px;
        padding-block: 60px;
    }

    .hero-media img {
        object-position: 66% center;
    }

    .hero-media::after {
        background: linear-gradient(0deg, rgba(8, 13, 34, .98) 10%, rgba(8, 13, 34, .62) 70%, rgba(8, 13, 34, .2));
    }

    .hero h1 {
        font-size: 51px;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-stat strong {
        font-size: 22px;
    }

    .section {
        padding-block: 72px;
    }

    .section-heading h2,
    .faq-intro h2,
    .community-intro h2,
    .contact-info h2 {
        font-size: 37px;
    }

    .video-grid {
        gap: 16px;
    }

    .video-card,
    .video-card:first-child,
    .video-card:nth-child(5) {
        grid-column: span 12;
    }

    .service-grid,
    .expert-grid,
    .community-cards,
    .feature-list,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .community-card:nth-child(2),
    .community-card:nth-child(5) {
        transform: none;
    }

    .ai-media {
        min-height: 360px;
    }

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

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

    .review-card,
    .review-card:nth-child(4),
    .review-card:nth-child(5) {
        grid-column: span 12;
    }

    .contact-media {
        min-height: 320px;
    }

    .share-inner,
    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }

    .qr-pair {
        flex-wrap: wrap;
    }

    .tool-shell {
        grid-template-columns: 1fr;
    }

    .tool-sidebar {
        display: flex;
        overflow-x: auto;
        gap: 8px;
    }

    .tool-sidebar a {
        flex: 0 0 auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}