:root {
    --primary: #8B9C7C;
    --primary-2: #6f8364;
    --bg: #f7faf6;
    --text: #132016;
    --muted: rgba(19, 32, 22, 0.70);
    --border: rgba(139, 156, 124, 0.22);
    --glass: rgba(255, 255, 255, 0.72);
    --glass-strong: rgba(255, 255, 255, 0.86);
    --shadow: 0 22px 60px rgba(26, 46, 33, 0.14);
    --radius: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    background: var(--bg);
}

.reveal {
    opacity: 0;
    transform: translateY(12px) scale(0.995);
    filter: blur(10px);
    transition: opacity 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
        transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
        filter 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform, opacity, filter;
}

.reveal.in {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

.reveal-sheen {
    position: relative;
    overflow: hidden;
}

.reveal-sheen::after {
    content: '';
    position: absolute;
    inset: -40% -30%;
    transform: translateX(-55%) rotate(12deg);
    background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,0.22), rgba(255,255,255,0));
    opacity: 0;
    pointer-events: none;
}

.reveal.in.reveal-sheen::after {
    animation: sheen 1200ms ease 120ms both;
}

@keyframes sheen {
    0% { opacity: 0; transform: translateX(-65%) rotate(12deg); }
    15% { opacity: 0.85; }
    100% { opacity: 0; transform: translateX(65%) rotate(12deg); }
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        filter: none;
        transition: none;
    }
    .reveal-sheen::after { display: none; }
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
}
.bg-blur {
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 999px;
    filter: blur(55px);
    opacity: 0.45;
    background: radial-gradient(circle at 30% 30%, rgba(139, 156, 124, 0.55), rgba(255,255,255,0));
}
.bg-blur.b1 { left: -120px; top: -140px; }
.bg-blur.b2 { right: -160px; bottom: -180px; opacity: 0.35; }
.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(139,156,124,0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(139,156,124,0.06) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at 50% 30%, black 0%, transparent 70%);
}

.header {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: rgba(247, 250, 246, 0.72);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 240px;
}
.brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    object-fit: cover;
    border: 1px solid rgba(139,156,124,0.25);
    box-shadow: 0 16px 40px rgba(26, 46, 33, 0.10);
}
.brand-name {
    font-weight: 800;
    letter-spacing: 0.4px;
}
.brand-slogan {
    font-size: 12px;
    color: var(--muted);
}

.nav {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    border-radius: 999px;
    background: rgba(255,255,255,0.55);
    border: 1px solid rgba(139,156,124,0.20);
}
.nav-link {
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 650;
    font-size: 14px;
    color: rgba(19, 32, 22, 0.88);
    transition: all 160ms ease;
}
.nav-link:hover {
    background: rgba(139,156,124,0.12);
}
.nav-link.active {
    background: rgba(139,156,124,0.18);
    color: rgba(19, 32, 22, 0.98);
    border: 1px solid rgba(139,156,124,0.26);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.25);
    background: rgba(255,255,255,0.70);
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: rgba(19, 32, 22, 0.78);
    border-radius: 2px;
}

.nav-drawer {
    display: none;
    padding-bottom: 14px;
}
.nav-drawer.open {
    display: grid;
    gap: 8px;
}
.drawer-link {
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.70);
    font-weight: 650;
}

.main { padding: 28px 0 40px; }

.hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 22px;
    padding-top: 18px;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.65);
    color: rgba(19, 32, 22, 0.86);
    font-weight: 650;
    font-size: 12px;
}

.hero-title {
    margin: 14px 0 10px;
    font-size: 41px;
    line-height: 1.62;
    letter-spacing: -0.6px;
    font-family: '宋体';
}
.hero-subtitle {
    display: inline-block;
    font-size: 0.86em;
}
.hero-desc {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.95;
}

.hero-actions {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.25);
    background: rgba(255,255,255,0.72);
    font-weight: 750;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 16px 40px rgba(26, 46, 33, 0.12); }
.btn.primary {
    background: linear-gradient(135deg, rgba(139,156,124,0.95), rgba(139,156,124,0.72));
    border-color: rgba(139,156,124,0.35);
    color: #0e1710;
}
.btn.ghost {
    background: rgba(255,255,255,0.55);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 18px;
}
.stat {
    padding: 14px;
    border-radius: 16px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.66);
}
.stat-num {
    font-size: 22px;
    font-weight: 850;
}
.stat-label {
    font-size: 12px;
    color: var(--muted);
    margin-top: 4px;
}

.social-icons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 12px;
    place-items: center;
}

.social-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    transition: transform 160ms ease, box-shadow 160ms ease;
    cursor: pointer;
}

.social-icon:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 46, 33, 0.15);
}

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

.glass {
    background: var(--glass);
    border: 1px solid rgba(139,156,124,0.22);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.card { padding: 14px; }
.card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 4px 12px;
    border-bottom: 1px solid rgba(139,156,124,0.18);
}
.card-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(139,156,124,0.35);
}
.card-title { margin-left: 6px; font-weight: 750; color: rgba(19,32,22,0.78); }
.card-body { padding: 14px 6px 4px; display: grid; gap: 12px; }
.feature-title { font-weight: 850; }
.feature-desc { color: var(--muted); font-size: 13px; margin-top: 6px; line-height: 1.6; }

.hero-gallery {
    display: grid;
    gap: 10px;
    margin-top: 12px;
}
.hero-shot {
    border-radius: 16px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.78);
    box-shadow: 0 18px 44px rgba(26, 46, 33, 0.12);
}

.section { padding-top: 10px; }
.section-title {
    margin: 0 0 14px;
    font-size: 22px;
    letter-spacing: -0.2px;
}
.section-head { margin-bottom: 14px; }
.page-title { margin: 0; font-size: 28px; letter-spacing: -0.3px; }
.page-sub { margin-top: 6px; color: var(--muted); }

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product {
    padding: 16px;
}

.product-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.product-title {
    font-weight: 900;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.product-desc {
    margin-top: 8px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.75;
}

.product-media {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(139,156,124,0.18);
    background: rgba(255,255,255,0.72);
}

.product-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 10px;
}

.product-shot {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.20);
    background: rgba(255,255,255,0.85);
}

.stele-intro {
    margin-bottom: 12px;
    align-items: stretch;
}

.stele-card {
    padding: 16px;
}

.stele-title {
    font-weight: 900;
    font-size: 16px;
}

.stele-desc {
    margin-top: 10px;
    color: var(--muted);
    line-height: 1.75;
    font-size: 13px;
}

.stele-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
    flex-wrap: wrap;
}

.stele-media {
    padding: 10px;
}

.tile {
    display: block;
    padding: 16px;
    border-radius: 18px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.70);
    box-shadow: 0 18px 44px rgba(26, 46, 33, 0.10);
    transition: transform 160ms ease;
}
.tile:hover { transform: translateY(-2px); }
.tile-title { font-weight: 850; font-size: 16px; }
.tile-desc { margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.65; }

.embed-wrap { padding: 10px; }
.embed-wrap.embed-wide {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    transform: none;
}
.embed-wrap.embed-wide {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.embed {
    width: 100%;
    height: min(78vh, 900px);
    border: 0;
}
.embed-wrap.embed-wide .embed {
    min-width: 1280px;
}
.embed {
    border-radius: 14px;
    background: #fff;
}

.masonry {
    column-count: 2;
    column-gap: 12px;
}
.shot {
    break-inside: avoid;
    margin: 0 0 12px;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.85);
    box-shadow: 0 18px 44px rgba(26, 46, 33, 0.10);
}

.case { padding: 16px; }
.case-title { font-weight: 850; font-size: 16px; }
.case-desc { margin-top: 10px; color: var(--muted); line-height: 1.7; font-size: 13px; }

.about-grid { align-items: start; }
.about-card { padding: 16px; }
.about-title { font-weight: 850; font-size: 16px; margin-bottom: 10px; }
.about-text { color: rgba(19,32,22,0.86); line-height: 1.85; font-size: 14px; }
.about-divider {
    height: 1px;
    background: rgba(139,156,124,0.18);
    margin: 14px 0;
}

.about-list {
    display: grid;
    gap: 10px;
}

.about-li {
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.16);
    background: rgba(255,255,255,0.62);
    color: rgba(19,32,22,0.86);
    line-height: 1.7;
    font-size: 14px;
}

.about-li-k {
    font-weight: 900;
}

.about-kv {
    display: grid;
    gap: 10px;
}

.about-kv-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.16);
    background: rgba(255,255,255,0.62);
}

.about-k {
    color: rgba(19,32,22,0.78);
    font-weight: 850;
    font-size: 13px;
}

.uni-highlight {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-weight: 950;
    letter-spacing: 0.2px;
    color: rgba(14, 23, 16, 0.92);
    background: linear-gradient(135deg, rgba(197, 219, 179, 0.85), rgba(139, 156, 124, 0.22));
    border: 1px solid rgba(139, 156, 124, 0.30);
    box-shadow: 0 14px 34px rgba(26, 46, 33, 0.10);
}

.about-v {
    color: rgba(19,32,22,0.92);
    font-weight: 750;
    font-size: 13px;
    text-align: right;
}

.qr-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.qr-tile {
    border-radius: 16px;
    border: 1px solid rgba(139,156,124,0.18);
    background: rgba(255,255,255,0.60);
    padding: 12px;
    display: grid;
    gap: 10px;
    place-items: center;
    text-align: center;
}

.qr-name {
    font-weight: 900;
    font-size: 13px;
    color: rgba(19,32,22,0.86);
}

.qr-pic {
    width: min(220px, 100%);
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.92);
    box-shadow: 0 18px 44px rgba(26, 46, 33, 0.10);
}

.qr-ph {
    width: 100%;
    border-radius: 14px;
    border: 1px dashed rgba(139,156,124,0.32);
    background: rgba(255,255,255,0.50);
    padding: 18px 12px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
}
.about-video {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.22);
    background: rgba(255,255,255,0.92);
}
.about-note { margin-top: 10px; color: var(--muted); font-size: 12px; }

.app-hero {
    align-items: stretch;
}

.app-card {
    padding: 16px;
}

.app-card-title {
    font-weight: 900;
    font-size: 15px;
    letter-spacing: -0.1px;
}

.app-card-text {
    margin-top: 10px;
    color: rgba(19,32,22,0.86);
    line-height: 1.85;
    font-size: 14px;
}

.qr-card {
    padding: 18px;
    text-align: center;
    background: linear-gradient(135deg, rgba(139,156,124,0.16), rgba(255,255,255,0.80));
    border: 1px solid rgba(139,156,124,0.28);
}

.qr-title {
    font-weight: 950;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.qr-sub {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.7;
    font-size: 13px;
}

.qr-media {
    display: flex;
    justify-content: center;
    margin-top: 14px;
}

.qr-img {
    width: min(320px, 86vw);
    border-radius: 18px;
    border: 1px solid rgba(139,156,124,0.28);
    background: rgba(255,255,255,0.92);
    box-shadow: 0 22px 60px rgba(26, 46, 33, 0.18);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.feature-tile {
    padding: 16px;
}

.feature-k {
    font-weight: 950;
    letter-spacing: -0.1px;
}

.feature-v {
    margin-top: 10px;
    color: var(--muted);
    line-height: 1.75;
    font-size: 13px;
}

.list-card {
    padding: 6px;
}

.list-item {
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(139,156,124,0.16);
    background: rgba(255,255,255,0.62);
    color: rgba(19,32,22,0.86);
    line-height: 1.7;
    font-size: 14px;
}

.list-item + .list-item {
    margin-top: 8px;
}

.footer {
    border-top: 1px solid rgba(139,156,124,0.20);
    background: rgba(255,255,255,0.50);
}
.footer-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 0;
}
.footer-title { font-weight: 850; }
.footer-sub { margin-top: 6px; color: var(--muted); font-size: 12px; }
.footer-right { display: flex; gap: 14px; }
.footer-link { color: rgba(19, 32, 22, 0.78); font-weight: 650; }
.footer-link:hover { color: rgba(19, 32, 22, 0.95); }

@media (max-width: 980px) {
    .hero { grid-template-columns: 1fr; }
    .hero-title { font-size: 36px; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .product-gallery { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .qr-grid { grid-template-columns: 1fr; }
    .masonry { column-count: 1; }
}

@media (max-width: 860px) {
    .nav { display: none; }
    .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
}