:root {
    --rice: #eee7d8;
    --paper: #f7f2e8;
    --ash: #d7d3c8;
    --mist: #bfc8bd;
    --wood: #7d684f;
    --clay: #a87955;
    --ink: #25231f;
    --soil: #514338;
    --line: rgba(37, 35, 31, .14);
    --shadow: 0 24px 60px rgba(55, 47, 38, .14);
    --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 18% 8%, rgba(191, 200, 189, .42), transparent 28rem),
        radial-gradient(circle at 80% 18%, rgba(168, 121, 85, .19), transparent 23rem),
        linear-gradient(135deg, var(--paper), var(--rice));
    line-height: 1.72;
    letter-spacing: .02em;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .28;
    background-image:
        linear-gradient(90deg, rgba(37,35,31,.03) 1px, transparent 1px),
        linear-gradient(0deg, rgba(37,35,31,.025) 1px, transparent 1px);
    background-size: 44px 44px, 44px 44px;
    mix-blend-mode: multiply;
    z-index: 0;
}
body > * { position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button, input { font: inherit; }
.skip-link, .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}
.skip-link:focus {
    width: auto;
    height: auto;
    clip: auto;
    padding: .8rem 1rem;
    background: var(--ink);
    color: var(--paper);
    z-index: 20;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: rgba(247, 242, 232, .82);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1rem clamp(1rem, 3vw, 2rem) .72rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    justify-content: space-between;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: .72rem;
    min-width: max-content;
}
.brand-logo img { border-radius: 50%; box-shadow: 0 10px 28px rgba(37, 35, 31, .12); }
.brand-text {
    font-size: 1.34rem;
    font-weight: 700;
    letter-spacing: .14em;
}
.top-nav {
    display: flex;
    gap: .34rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.top-nav a {
    padding: .6rem .86rem;
    border-radius: 999px;
    color: rgba(37, 35, 31, .74);
    transition: background .2s ease, color .2s ease, transform .2s ease;
}
.top-nav a:hover, .top-nav a.is-active {
    background: rgba(125, 104, 79, .13);
    color: var(--ink);
    transform: translateY(-1px);
}
.search-shell {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 3vw, 2rem) 1rem;
}
.search-demo {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: .7rem;
    background: rgba(255,255,255,.38);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .42rem;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.28);
}
.search-demo input {
    border: 0;
    outline: 0;
    background: transparent;
    padding: .82rem 1.15rem;
    color: var(--ink);
    min-width: 0;
}
.search-demo button, .button-link {
    border: 1px solid rgba(37,35,31,.18);
    background: var(--ink);
    color: var(--paper);
    padding: .78rem 1.18rem;
    border-radius: 999px;
    cursor: pointer;
    transition: transform .2s ease, background .2s ease;
}
.search-demo button:hover, .button-link:hover { transform: translateY(-2px); background: var(--soil); }
.search-note { margin: .55rem 1.1rem 0; color: rgba(37,35,31,.62); font-size: .92rem; }
.main, .sub-main { max-width: 1240px; margin: 0 auto; padding: clamp(1rem, 3vw, 2rem); }
.hero {
    min-height: clamp(680px, 84vh, 900px);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
    padding: clamp(3rem, 7vw, 7rem) 0;
}
.hero-copy { max-width: 700px; }
.eyebrow {
    margin: 0 0 .78rem;
    color: var(--wood);
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    font-size: .8rem;
}
h1, h2, h3, h4, h5, h6 { line-height: 1.18; margin: 0; color: var(--ink); }
h1 { font-size: clamp(2.7rem, 8vw, 7.2rem); letter-spacing: -.05em; }
h2 { font-size: clamp(1.9rem, 4vw, 3.6rem); letter-spacing: -.035em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.65rem); }
h4 { font-size: 1.05rem; }
h5, h6 { font-size: .96rem; }
.lead {
    font-size: clamp(1.05rem, 1.5vw, 1.28rem);
    color: rgba(37,35,31,.72);
    margin: 1.4rem 0 0;
}
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 2rem; }
.button-link.secondary { background: transparent; color: var(--ink); }
.domain-line { color: rgba(37,35,31,.65); margin-top: 1.1rem; }
.hero-art, .page-hero-media {
    border-radius: var(--radius);
    overflow: hidden;
    background: rgba(255,255,255,.34);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: rotate(-.6deg);
}
.hero-art img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.hero-art figcaption, .page-hero-media figcaption { padding: .85rem 1rem; font-size: .9rem; color: rgba(37,35,31,.62); }
.grain-panel, .story-card, .video-card, .review-card, .mentor-card, .mini-card, .faq-list details, .contact-card {
    position: relative;
    background: rgba(247,242,232,.72);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 20px 50px rgba(55, 47, 38, .08);
    overflow: hidden;
}
.grain-panel::before, .story-card::before, .video-card::before, .review-card::before, .mentor-card::before, .mini-card::before, .contact-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 12% 18%, rgba(37,35,31,.06), transparent 9rem),
        linear-gradient(120deg, rgba(255,255,255,.34), transparent 38%);
    opacity: .82;
}
.section-heading { max-width: 780px; margin-bottom: 2rem; }
.section-heading p { color: rgba(37,35,31,.68); }
.content-section { padding: clamp(3rem, 7vw, 6rem) 0; }
.muted-section {
    margin-inline: calc(clamp(1rem, 3vw, 2rem) * -1);
    padding-inline: clamp(1rem, 3vw, 2rem);
    background: rgba(215,211,200,.23);
    border-block: 1px solid rgba(37,35,31,.08);
}
.stats-row, .meta-row, .tag-row { display: flex; gap: .65rem; flex-wrap: wrap; align-items: center; }
.stats-row { margin-top: 2rem; }
.stats-row span, .meta-row span, .tag-row span {
    border: 1px solid var(--line);
    background: rgba(255,255,255,.32);
    border-radius: 999px;
    padding: .46rem .72rem;
    color: rgba(37,35,31,.7);
    font-size: .92rem;
}
.stats-row strong, .meta-row strong { color: var(--ink); margin-right: .18rem; }
.story-grid, .review-grid, .mentor-grid, .partner-grid, .mini-card-grid, .contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}
.story-card, .review-card, .mentor-card, .mini-card, .contact-card { padding: 1.3rem; }
.story-card > *, .review-card > *, .mentor-card > *, .mini-card > *, .contact-card > * { position: relative; z-index: 1; }
.story-card p, .review-card p, .mentor-card p, .mini-card p, .contact-card p { color: rgba(37,35,31,.68); margin-bottom: 0; }
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
}
.video-card { transition: transform .25s ease, box-shadow .25s ease; }
.video-card:hover { transform: translateY(-6px); box-shadow: 0 26px 72px rgba(55,47,38,.18); }
.video-frame {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, var(--ash), var(--clay));
}
.video-frame video { width: 100%; height: 100%; object-fit: cover; opacity: .95; }
.video-frame::after {
    content: "";
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(circle at 26% 22%, rgba(255,255,255,.32), transparent 11rem),
        radial-gradient(circle at 68% 62%, rgba(37,35,31,.14), transparent 13rem),
        repeating-linear-gradient(35deg, rgba(255,255,255,.05) 0 2px, transparent 2px 12px);
    opacity: 0;
    transform: scale(1);
    transition: opacity .35s ease;
}
.video-card:hover .video-frame::after, .video-card.is-previewing .video-frame::after {
    opacity: .85;
    animation: textureBreath 4.8s ease-in-out infinite;
}
@keyframes textureBreath {
    0%, 100% { transform: scale(1) translate3d(0,0,0); filter: blur(0); }
    50% { transform: scale(1.05) translate3d(-1.5%, 1%, 0); filter: blur(.6px); }
}
.play-button {
    position: absolute;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -50%) scale(.86);
    width: 4.2rem;
    height: 4.2rem;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.7);
    background: rgba(37,35,31,.72);
    color: var(--paper);
    opacity: 0;
    z-index: 2;
    cursor: pointer;
    transition: opacity .24s ease, transform .24s ease;
}
.video-card:hover .play-button, .video-card.is-previewing .play-button { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-badge {
    position: absolute;
    top: .8rem;
    left: .8rem;
    z-index: 2;
    border-radius: 999px;
    padding: .34rem .68rem;
    background: rgba(247,242,232,.8);
    border: 1px solid rgba(37,35,31,.16);
    color: var(--ink);
    font-size: .82rem;
}
.card-body { position: relative; z-index: 1; padding: 1.15rem; }
.card-body p { color: rgba(37,35,31,.68); }
.small-tags span { font-size: .78rem; padding: .28rem .55rem; }
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}
.gallery-grid figure {
    margin: 0;
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.28);
}
.gallery-grid img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; transition: transform .4s ease; }
.gallery-grid figure:hover img { transform: scale(1.04); }
.gallery-grid figcaption { padding: .75rem .85rem; color: rgba(37,35,31,.68); font-size: .92rem; }
.ai-panel {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 1.2rem;
    align-items: stretch;
}
.ai-panel figure { margin: 0; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); }
.ai-panel img { width: 100%; height: 100%; object-fit: cover; }
.ai-tool-list { display: grid; gap: .8rem; }
.ai-tool-list article { padding: 1.1rem; border-radius: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.28); }
.mentor-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 22px; margin-bottom: 1rem; border: 1px solid var(--line); }
.review-card blockquote { margin: 0; font-size: 1.02rem; color: rgba(37,35,31,.78); }
.review-card cite { display: block; margin-top: 1rem; color: var(--wood); font-style: normal; }
.partner-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.partner-grid img { width: 100%; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.36); }
.faq-list { display: grid; gap: .8rem; }
.partner-faq { margin-top: 1.2rem; }
.faq-list details { padding: 1rem 1.15rem; }
.faq-list summary { cursor: pointer; font-weight: 700; }
.faq-list p { color: rgba(37,35,31,.7); margin-bottom: 0; }
.contact-band { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.contact-band figure { margin: 0; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); }
.contact-band img { width: 100%; height: 100%; object-fit: cover; }
.breadcrumb { margin: 1.2rem 0; color: rgba(37,35,31,.62); display: flex; gap: .5rem; flex-wrap: wrap; }
.breadcrumb a { border-bottom: 1px solid rgba(37,35,31,.18); }
.page-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr);
    gap: clamp(1.3rem, 4vw, 3rem);
    align-items: center;
    padding: clamp(1.4rem, 4vw, 3rem);
}
.page-hero-media { margin: 0; transform: rotate(.4deg); }
.page-hero-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.footer-cta {
    max-width: 1240px;
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2rem);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
}
.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(37,35,31,.88);
    color: var(--paper);
}
.site-footer h2, .site-footer p, .site-footer a { color: var(--paper); }
.footer-brand { display: flex; gap: 1rem; align-items: center; }
.footer-brand img, .qr-group img { border-radius: 18px; }
.qr-group { display: flex; gap: 1rem; }
.qr-group figure { margin: 0; text-align: center; color: rgba(247,242,232,.74); font-size: .86rem; }
.footer-links, .footer-bottom {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1rem clamp(1rem, 3vw, 2rem);
    border-top: 1px solid rgba(247,242,232,.16);
}
.footer-links { display: flex; flex-wrap: wrap; gap: .85rem; }
.footer-links a { border: 1px solid rgba(247,242,232,.18); border-radius: 999px; padding: .48rem .8rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: rgba(247,242,232,.74); }
.footer-bottom p { margin: 0; color: rgba(247,242,232,.74); }
@media (max-width: 980px) {
    .header-inner { align-items: flex-start; flex-direction: column; }
    .top-nav { justify-content: flex-start; }
    .hero, .page-hero, .ai-panel, .contact-band, .footer-cta { grid-template-columns: 1fr; }
    .story-grid, .video-grid, .review-grid, .mentor-grid, .mini-card-grid, .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .gallery-grid, .partner-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
    .search-demo { grid-template-columns: 1fr; border-radius: 24px; }
    .top-nav a { padding: .48rem .62rem; }
    h1 { font-size: clamp(2.35rem, 18vw, 4.4rem); }
    .hero { min-height: auto; }
    .story-grid, .video-grid, .review-grid, .mentor-grid, .mini-card-grid, .contact-grid, .gallery-grid, .partner-grid { grid-template-columns: 1fr; }
    .footer-brand, .qr-group { align-items: flex-start; flex-direction: column; }
    .footer-bottom { flex-direction: column; }
}