:root {
    --paper: #f4f0e8;
    --ink: #141613;
    --muted: #5c5852;
    --line: rgba(20, 22, 19, 0.14);
    --bronze: #c4a574;
    --deep: #121816;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font: 16px/1.75 "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a { color: inherit; }

img { display: block; width: 100%; height: 100%; object-fit: cover; }

.nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 6vw;
    background: rgba(244, 240, 232, 0.88);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 12px;
    text-decoration: none;
}

.brand b {
    font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
    font-size: 22px;
    letter-spacing: 0.14em;
}

.brand span { color: var(--muted); font-size: 12px; letter-spacing: 0.2em; }

.nav ul { display: flex; gap: 28px; margin: 0; padding: 0; list-style: none; }

.nav a {
    position: relative;
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.08em;
}

.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 1px;
    background: var(--ink);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s ease;
}

.nav a:hover::after { transform: scaleX(1); }

.hero {
    position: relative;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    align-items: end;
    min-height: 92vh;
    padding: 72px 6vw 56px;
    color: #f6f1e8;
    overflow: hidden;
}

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

.hero-media img { transform: scale(1.08); animation: drift 22s ease-in-out infinite alternate; }

.hero-shade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(10, 12, 11, 0.78), rgba(10, 12, 11, 0.28) 70%),
        linear-gradient(180deg, rgba(10, 12, 11, 0.15), rgba(10, 12, 11, 0.55));
}

.hero-copy, .hero-panel { position: relative; z-index: 1; }

.hero-copy { animation: rise 1s ease both; }

.hero-panel { animation: rise 1.1s 0.18s ease both; }

.eyebrow {
    margin: 0 0 16px;
    color: var(--bronze);
    font-size: 12px;
    letter-spacing: 0.28em;
}

h1, h2, h3 { font-family: "Songti SC", "STSong", "Noto Serif SC", serif; font-weight: 500; }

h1 {
    margin: 0;
    max-width: 760px;
    font-size: clamp(46px, 6vw, 84px);
    line-height: 1.12;
    letter-spacing: 0.04em;
}

.lede { max-width: 560px; margin: 22px 0 0; color: rgba(246, 241, 232, 0.82); font-size: 18px; }

.hero-panel {
    padding: 26px 24px 8px;
    background: rgba(18, 20, 18, 0.46);
    border: 1px solid rgba(246, 241, 232, 0.18);
    backdrop-filter: blur(10px);
}

.hero-panel p { margin: 0 0 20px; }

.hero-panel strong {
    display: block;
    margin-bottom: 4px;
    font-family: "Songti SC", "STSong", serif;
    font-size: 28px;
    font-weight: 500;
}

.hero-panel span { color: rgba(246, 241, 232, 0.72); font-size: 13px; }

section { padding: 92px 6vw; }

section[id] { scroll-margin-top: 78px; }

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    margin-bottom: 36px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}

.section-head h2 { margin: 8px 0 0; font-size: clamp(32px, 4vw, 52px); letter-spacing: 0.05em; }

.index { color: #8d6840; font-size: 13px; letter-spacing: 0.22em; }

.about {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
}

.frame {
    position: relative;
    height: 560px;
    overflow: hidden;
}

.frame img { transition: transform 1.1s ease; }

.frame:hover img { transform: scale(1.06); }

.about p { margin: 0 0 16px; color: #3d3b36; font-size: 17px; }

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

.facts div { padding: 16px 0; border-bottom: 1px solid var(--line); }

.facts b {
    display: block;
    margin-bottom: 4px;
    color: #8d6840;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.16em;
}

.services { background: var(--deep); color: #f6f1e8; }

.services .section-head { border-bottom-color: rgba(246, 241, 232, 0.16); }

.services .index { color: var(--bronze); }

.grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(246, 241, 232, 0.1);
    overflow: hidden;
}

.card .shot { height: 210px; overflow: hidden; }

.card .shot img { transition: transform 0.8s ease; }

.card:hover .shot img { transform: scale(1.08); }

.card .body { padding: 22px 20px 24px; }

.card em {
    color: var(--bronze);
    font-style: normal;
    font-size: 12px;
    letter-spacing: 0.18em;
}

.card h3 { margin: 8px 0 10px; font-size: 26px; }

.card p { margin: 0; color: rgba(246, 241, 232, 0.76); }

.scope { background: #e9e3d8; overflow: hidden; }

.marquee {
    display: grid;
    gap: 14px;
    margin: 0 -6vw;
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: ticker 70s linear infinite;
}

.marquee-track.back { animation-direction: reverse; animation-duration: 82s; }

.marquee-track ul {
    display: flex;
    gap: 12px;
    margin: 0;
    padding: 0 6px;
    list-style: none;
}

.marquee li {
    padding: 12px 18px;
    background: #faf8f4;
    border: 1px solid rgba(20, 22, 19, 0.1);
    border-radius: 999px;
    font-size: 15px;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.marquee:hover .marquee-track { animation-play-state: paused; }

@keyframes ticker {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.note { margin: 20px 0 0; color: var(--muted); font-size: 13px; }

.journey-layout { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 36px; align-items: start; }

.journey-photo { height: 100%; min-height: 460px; overflow: hidden; }

.journey-photo img { transition: transform 1.2s ease; }

.journey-photo:hover img { transform: scale(1.05); }

.step {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 20px;
    padding: 24px 0;
    border-top: 1px solid var(--line);
}

.step time { color: #8d6840; font-family: "Songti SC", "STSong", serif; font-size: 22px; }

.step h3 { margin: 0 0 8px; font-size: 24px; }

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

.news-list { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 16px; }

.news { background: #faf8f4; border: 1px solid var(--line); overflow: hidden; }

.news .shot { height: 240px; overflow: hidden; }

.news.lead .shot { height: 320px; }

.news .shot img { transition: transform 0.9s ease; }

.news:hover .shot img { transform: scale(1.06); }

.news .body { padding: 22px 22px 26px; }

.news small { color: #8d6840; letter-spacing: 0.16em; font-size: 12px; }

.news h3 { margin: 10px 0; font-size: 26px; }

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

.stack { display: grid; gap: 16px; }

footer { padding: 48px 6vw 36px; background: #101311; color: rgba(244, 240, 232, 0.76); }

.foot { display: flex; justify-content: space-between; gap: 24px; align-items: end; }

.foot strong {
    display: block;
    margin-bottom: 8px;
    color: #f4f0e8;
    font-family: "Songti SC", "STSong", serif;
    font-size: 30px;
    font-weight: 500;
    letter-spacing: 0.14em;
}

footer a { color: #f4f0e8; }

.reveal { opacity: 0; transform: translateY(36px); }

.reveal.in { animation: rise 0.9s ease forwards; }

@keyframes rise {
    from { opacity: 0; transform: translateY(36px); }
    to { opacity: 1; transform: none; }
}

@keyframes drift {
    from { transform: scale(1.08) translate3d(0, 0, 0); }
    to { transform: scale(1.16) translate3d(-2%, -1%, 0); }
}

@media (prefers-reduced-motion: reduce) {
    .hero-media img, .reveal, .marquee-track { animation: none; }
    .reveal { opacity: 1; transform: none; }
    .marquee-track { flex-wrap: wrap; width: auto; }
    .marquee { margin: 0; mask-image: none; }
    .card .shot img, .news .shot img, .frame img, .journey-photo img { transition: none; }
}

@media (max-width: 980px) {
    .nav { align-items: flex-start; flex-direction: column; padding: 16px 20px; }
    .nav ul { flex-wrap: wrap; gap: 12px 18px; }
    .hero, .about, .grid, .journey-layout, .news-list, .step, .foot { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding: 48px 20px 36px; }
    section { padding: 56px 20px; }
    .marquee { margin: 0 -20px; }
    .frame, .journey-photo, .card .shot, .news .shot, .news.lead .shot { height: 240px; min-height: 0; }
    h1 { font-size: 40px; }
}