:root {
  --primary: #1677ff;
  --primary-soft: rgba(22, 119, 255, 0.18);
  --text: #101726;
  --text-soft: #5a6478;
  --text-light: #98a2b3;
  --bg: #ffffff;
  --bg-soft: #f5f8ff;
  --bg-elev: #ffffff;
  --border: #e7ecf5;
  --shadow: 0 10px 34px rgba(15, 45, 118, 0.12);
  --shadow-light: 0 4px 18px rgba(15, 45, 118, 0.08);
  --glow: rgba(22, 119, 255, 0.35);
  --radius: 6px;
  --radius-lg: 16px;
  --container: 1160px;
  --grad-primary: linear-gradient(135deg, #1677ff 0%, #6366f1 60%, #8b5cf6 100%);
  --grad-ocean: linear-gradient(135deg, #0b1226 0%, #101b4d 45%, #2a3f9f 100%);
}
[data-theme="dark"] {
  --primary: #4096ff;
  --primary-soft: rgba(64, 150, 255, 0.22);
  --text: #eef2fa;
  --text-soft: #b3bdce;
  --text-light: #7e89a0;
  --bg: #0b1120;
  --bg-soft: #101a33;
  --bg-elev: #141f3a;
  --border: #233252;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
  --shadow-light: 0 6px 22px rgba(0, 0, 0, 0.38);
  --glow: rgba(64, 150, 255, 0.35);
  --grad-primary: linear-gradient(135deg, #4096ff 0%, #7c7cf0 60%, #a78bfa 100%);
  --grad-ocean: linear-gradient(135deg, #05070f 0%, #0a1130 45%, #162450 100%);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); line-height: 1.6; scroll-behavior: smooth; }

/* 科技网格 + 光晕底景 */
body {
  background-color: var(--bg);
  background-image:
    radial-gradient(1000px 480px at 12% -8%, var(--primary-soft), transparent 60%),
    radial-gradient(900px 460px at 96% 0%, rgba(139, 92, 246, 0.10), transparent 55%),
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  background-position: 0 0, 0 0, -1px -1px, -1px -1px;
  background-attachment: fixed;
}
[data-theme="dark"] body {
  background-image:
    radial-gradient(1000px 480px at 12% -8%, rgba(22, 119, 255, 0.14), transparent 60%),
    radial-gradient(900px 460px at 96% 0%, rgba(139, 92, 246, 0.12), transparent 55%),
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; }

/* ===== Header 玻璃拟态 ===== */
#site-header { position: sticky; top: 0; z-index: 99; border-bottom: 1px solid var(--border); backdrop-filter: blur(16px) saturate(150%); -webkit-backdrop-filter: blur(16px) saturate(150%); background-color: color-mix(in srgb, var(--bg-elev) 78%, transparent); box-shadow: 0 6px 24px rgba(15, 45, 118, 0.06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 19px; letter-spacing: .2px; }
.brand-logo { height: 34px; width: auto; }
.brand-badge { width: 36px; height: 36px; border-radius: 12px; color: white; background: var(--grad-primary); box-shadow: 0 6px 18px var(--glow); display: grid; place-items: center; font-weight: 800; }
.nav-menu { display: flex; gap: 4px; }
.nav-link { padding: 8px 16px; border-radius: 20px; transition: all .2s; font-weight: 600; color: var(--text-soft); position: relative; }
.nav-link:hover, .nav-link.active { background: var(--primary-soft); color: var(--primary); }
.nav-tools { display: flex; align-items: center; gap: 10px; }
.tool-btn { display: inline-flex; align-items: center; gap: 4px; padding: 6px 12px; border-radius: 20px; border: 1px solid var(--border); background: color-mix(in srgb, var(--bg-elev) 60%, transparent); transition: all .2s; }
.tool-btn:hover { background: var(--bg-soft); border-color: var(--primary); transform: translateY(-1px); }
.tool-btn span { font-size: 13px; line-height: 1; opacity: .5; }
.tool-btn span.on { opacity: 1; font-weight: 600; color: var(--primary); }
.tool-link { padding: 6px 14px; border-radius: 20px; border: 1px solid var(--primary); color: var(--primary); font-size: 14px; font-weight: 600; transition: all .2s; }
.tool-link:hover { background: var(--primary); color: white; box-shadow: 0 6px 16px var(--glow); }
.icon-only { padding: 8px; border-radius: 50%; }
.icon-only .icon { display: block; }
.icon-only:hover { background: var(--primary-soft); }
.icon.stroke { stroke: currentColor; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.theme-dd { position: relative; }
.theme-menu { position: absolute; top: calc(100% + 6px); right: 0; min-width: 118px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); padding: 6px; opacity: 0; visibility: hidden; transform: translateY(-6px); transition: all .2s; z-index: 120; }
.theme-menu.open { opacity: 1; visibility: visible; transform: none; }
.theme-opt { display: flex; width: 100%; align-items: center; gap: 8px; padding: 9px 12px; border-radius: 8px; color: var(--text-soft); font-size: 14px; text-align: left; transition: all .15s; }
.theme-opt:hover { background: var(--primary-soft); color: var(--primary); }
.theme-opt.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.theme-opt.active::after { content: '✓'; margin-left: auto; font-weight: 700; }
.theme-opt::before { content: '●'; font-size: 9px; margin-right: 4px; }
.theme-opt[data-theme="light"]::before { color: #f6a609; }
.theme-opt[data-theme="dark"]::before { color: #2b3a55; }
.theme-opt[data-theme="auto"]::before { content: '◐'; font-size: 12px; color: var(--primary); }
.nav-toggle { display: none; }
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: var(--bg-elev); border-bottom: 1px solid var(--border); padding: 10px 20px 18px;
    box-shadow: var(--shadow-light); opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  #site-header.nav-open .nav-menu { opacity: 1; visibility: visible; transform: none; }
  .nav-link { display: block; padding: 12px 16px; border-radius: 10px; }
  .tool-link { display: none; }
}

/* ===== Hero 科技光效 ===== */
.hero { padding: 110px 0; background: var(--grad-ocean); color: white; text-align: center; position: relative; overflow: hidden; }
.hero::before, .hero::after { content: ''; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 560px; height: 560px; left: -140px; top: -200px; background: radial-gradient(circle, rgba(22, 119, 255, .55), transparent 60%); }
.hero::after { width: 520px; height: 520px; right: -140px; bottom: -220px; background: radial-gradient(circle, rgba(139, 92, 246, .45), transparent 60%); }
.hero > * { position: relative; z-index: 1; }
.hero h1 { font-size: 46px; margin: 0 0 14px; line-height: 1.16; background: linear-gradient(90deg, #7ec8ff 0%, #5aa8ff 28%, #b68bff 52%, #ff9ad5 76%, #7ef0cb 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: #8fd0ff; letter-spacing: .5px; filter: drop-shadow(0 2px 10px rgba(120, 160, 255, 0.35)); }
.hero .subtitle { font-size: 18px; opacity: .92; margin: 0 0 34px; color: #d7defa; }
.hero-tag { display: inline-block; font-size: 14px; padding: 6px 18px; border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 999px; margin-bottom: 18px; opacity: .9; background: rgba(255, 255, 255, 0.06); backdrop-filter: blur(4px); letter-spacing: 1px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 34px; border-radius: 999px; font-weight: 600; transition: all .25s; position: relative; overflow: hidden; }
.btn-primary { background: var(--grad-primary); color: white; box-shadow: 0 8px 22px var(--glow); }
.btn-primary::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,.25), transparent); transform: translateX(-120%); transition: transform .6s; }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 32px var(--glow); }
.btn-outline { color: white; border: 1px solid rgba(255, 255, 255, 0.55); background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(4px); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.14); border-color: white; transform: translateY(-3px); }
@media (max-width: 768px) {
  .hero { padding: 72px 0; }
  .hero h1 { font-size: 34px; }
}

/* ===== Section ===== */
.section { padding: 84px 0; }
.section-header { text-align: center; margin-bottom: 52px; }
.section-header .tag { font-size: 14px; font-weight: 700; color: var(--primary); margin-bottom: 12px; letter-spacing: 2px; display: inline-block; padding: 4px 14px; border-radius: 999px; background: var(--primary-soft); }
.section-header h2 { font-size: 34px; margin: 0 0 14px; letter-spacing: -.5px; }
.section-header h2 em { font-style: normal; background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-header p { margin: 0; color: var(--text-soft); font-size: 16px; }
.section-header.has-more { position: relative; text-align: center; display: block; }
.section-header.has-more .sec-title h2 { margin-bottom: 0; }
.section-header.has-more .sec-title .tag { margin-bottom: 8px; }
.section-header .sec-more { position: absolute; top: 4px; right: 0; white-space: nowrap; color: var(--primary); font-weight: 600; font-size: 15px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--primary); transition: all .25s; display: inline-flex; align-items: center; gap: 4px; background: var(--primary-soft); }
.section-header .sec-more:hover { transform: translateX(4px); background: var(--primary); color: #fff; box-shadow: 0 6px 16px var(--glow); }
@media (max-width: 640px) { .section-header.has-more .sec-more { position: static; margin-top: 16px; } }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 960px) {
  .grid-2, .grid-3, .grid-4, .grid-cases { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 60px 0; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .grid-cases { grid-template-columns: 1fr; }
  .section-header h2 { font-size: 26px; }
}

/* ===== Card ===== */
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-light); transition: all .3s; position: relative; }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--grad-primary); opacity: 0; transform: scaleX(.2); transform-origin: left; transition: all .35s; z-index: 2; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.card:hover::before { opacity: 1; transform: scaleX(1); }
.card-cover { position: relative; height: 190px; overflow: hidden; background: linear-gradient(135deg, #e3ecff 0%, #e0e7ff 100%); }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.card:hover .card-cover img { transform: scale(1.05); }
.card-cover .badge { position: absolute; top: 12px; right: 12px; background: var(--grad-primary); color: white; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; box-shadow: 0 4px 12px var(--glow); }
.card-body { padding: 22px; }
.card-title { font-size: 18px; font-weight: 700; margin: 0 0 8px; line-height: 1.4; }
.card-title:hover { color: var(--primary); }
.card-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.badge-tag { font-size: 12px; padding: 3px 11px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.card-excerpt { color: var(--text-soft); font-size: 14px; line-height: 1.65; margin: 0 0 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-foot { display: flex; justify-content: space-between; align-items: center; }
.card-foot .btn-small { font-size: 14px; color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; transition: transform .2s; }
.card-foot .btn-small::after { content: '→'; }
.card:hover .card-foot .btn-small { transform: translateX(4px); }

/* ===== Stats ===== */
.stats { background: linear-gradient(180deg, var(--bg-soft), var(--bg)); padding: 64px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item .value { font-size: 50px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 12px; background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-item .label { color: var(--text-soft); font-size: 16px; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

/* ===== Core business ===== */
.business-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.business-card { padding: 30px 24px; text-align: left; position: relative; }
.business-card .icon { width: 54px; height: 54px; border-radius: 16px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; margin-bottom: 20px; position: relative; }
.business-card .icon::after { content: ''; position: absolute; inset: 0; border-radius: 16px; box-shadow: 0 0 24px var(--primary-soft); }
.business-card .icon svg { width: 28px; height: 28px; }
.business-card h3 { margin: 0 0 10px; font-size: 18px; }
.business-card p { margin: 0; color: var(--text-soft); font-size: 14px; line-height: 1.65; }
.business-card:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
@media (max-width: 960px) { .business-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .business-grid { grid-template-columns: 1fr; } }

/* ===== Partners ===== */
.partners { background: var(--bg-soft); }
.partners-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.partner-item { background: var(--bg-elev); border-radius: var(--radius-lg); padding: 26px 20px 20px; display: flex; flex-direction: column; align-items: center; gap: 14px; min-height: 150px; border: 1px solid var(--border); transition: all .25s; }
.partner-item:hover { border-color: var(--primary); box-shadow: var(--shadow-light); transform: translateY(-4px); }
.partner-logo { width: 100%; height: 74px; display: grid; place-items: center; background: #ffffff; border-radius: 12px; padding: 6px; border: 1px solid rgba(0,0,0,.04); }
.partner-logo img { max-height: 62px; max-width: 100%; height: auto; object-fit: contain; }
[data-theme="dark"] .partner-logo { background: #ffffff; border-color: var(--border); }
[data-theme="dark"] .partner-logo img { opacity: 1; }
.partner-item:hover .partner-logo img { opacity: 1; }
.partner-logo .partner-placeholder { background: var(--primary-soft); color: var(--primary); }
.partner-placeholder { width: 64px; height: 64px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-size: 26px; font-weight: 700; }
.partner-name { text-align: center; font-size: 14px; color: var(--text-soft); line-height: 1.5; min-height: 40px; display: flex; align-items: center; }

/* ===== Contact ===== */
.contact { background: linear-gradient(135deg, var(--primary-soft) 0%, var(--bg-soft) 100%); }
[data-theme="dark"] .contact { background: linear-gradient(135deg, #16204a 0%, #0b1120 100%); }
.contact-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; align-items: center; }
.contact-info { display: grid; gap: 20px; }
.contact-item { display: flex; gap: 12px; align-items: flex-start; }
.contact-item .icon { width: 46px; height: 46px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; flex-shrink: 0; }
.contact-item .icon svg { width: 22px; height: 22px; }
.contact-item .text h4 { margin: 0 0 4px; font-size: 16px; }
.contact-item .text a { color: var(--text-soft); text-decoration: underline; text-decoration-color: transparent; }
.contact-item .text a:hover { text-decoration-color: currentColor; }
.contact-cta { text-align: center; }
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }

/* ===== List page header ===== */
.page-head { padding: 72px 0 44px; background: var(--grad-ocean); color: white; position: relative; overflow: hidden; }
.page-head::before { content: ''; position: absolute; width: 480px; height: 480px; right: -120px; top: -180px; border-radius: 50%; background: radial-gradient(circle, rgba(22, 119, 255, .5), transparent 60%); }
.page-head::after { content: ''; position: absolute; width: 400px; height: 400px; left: -120px; bottom: -200px; border-radius: 50%; background: radial-gradient(circle, rgba(139, 92, 246, .4), transparent 60%); }
.page-head > * { position: relative; z-index: 1; }
.page-head .container > .page-title { text-align: center; }
.page-head h1 { margin: 0 0 12px; font-size: 38px; letter-spacing: .5px; }
.page-head p { margin: 0; color: #cfd8f5; font-size: 18px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 30px; padding-bottom: 8px; }
.filter-btn { padding: 9px 22px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.08); color: #e4e9fb; transition: all .2s; font-weight: 500; backdrop-filter: blur(4px); }
.filter-btn:hover { border-color: white; color: white; transform: translateY(-2px); background: rgba(255,255,255,.16); }
.filter-btn.active { background: var(--grad-primary); color: white; border-color: transparent; box-shadow: 0 6px 18px var(--glow); }
.empty-state { text-align: center; padding: 80px 20px; color: var(--text-soft); }
.empty-state .icon { font-size: 48px; opacity: .4; margin-bottom: 12px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 44px; align-items: center; }
.page-num { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-elev); display: grid; place-items: center; transition: all .2s; font-weight: 600; }
.page-num.active { background: var(--grad-primary); color: white; border-color: transparent; box-shadow: 0 5px 14px var(--glow); }
.page-num:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* ===== Detail ===== */
.detail { padding: 60px 0; }
.detail-cover { margin-bottom: 32px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-light); }
.detail-meta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; color: var(--text-soft); }
.detail-meta > span { display: inline-flex; align-items: center; }
.detail-partner { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; padding: 14px 18px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg-soft, #f7f8fa); }
.detail-partner-label { font-size: 13px; color: var(--text-soft); white-space: nowrap; }
.detail-partner-label::after { content: ''; display: inline-block; width: 1px; height: 20px; background: var(--border); margin: 0 4px 0 12px; vertical-align: middle; }
.detail-partner-logo { width: 44px; height: 44px; border-radius: 10px; overflow: hidden; background: #fff; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-light); flex: 0 0 auto; }
.detail-partner-logo img { width: 100%; height: 100%; object-fit: contain; }
.detail-partner-ph { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--primary); background: var(--primary-soft); }
.detail-partner-name { font-size: 15px; font-weight: 600; color: var(--text); }
.detail-content { font-size: 16px; line-height: 1.8; }
.detail-content h2 { font-size: 26px; margin: 32px 0 16px; }
.detail-content p { margin: 0 0 16px; color: var(--text-soft); }
.detail-content img { max-width: 100%; border-radius: var(--radius); margin: 20px 0; }
.download-block { margin: 40px 0; padding: 26px; border-radius: var(--radius-lg); border: 1px dashed var(--primary); background: linear-gradient(180deg, var(--primary-soft), var(--bg-soft)); }
.download-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; color: var(--primary); }
.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 768px) { .download-grid { grid-template-columns: 1fr; } }
.download-col { text-align: center; }
.qr-box { display: inline-block; padding: 12px; background: white; border-radius: 12px; border: 1px solid var(--border); margin-bottom: 8px; box-shadow: var(--shadow-light); }
[data-theme="dark"] .qr-box { background: #111827; }
.qr-box img { width: 160px; height: 160px; }
.download-link { display: inline-flex; padding: 11px 26px; border-radius: 999px; background: var(--grad-primary); color: white; font-weight: 600; transition: all .2s; box-shadow: 0 6px 16px var(--glow); }
.download-link:hover { opacity: .92; transform: translateY(-2px); box-shadow: 0 10px 24px var(--glow); }

/* ===== Cooperation ===== */
.coop-models { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-bottom: 60px; }
@media (max-width: 960px) { .coop-models { grid-template-columns: 1fr; } }
.coop-model-card { padding: 34px 30px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-elev); transition: all .25s; }
.coop-model-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-4px); }
.coop-model-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.coop-model-header .icon { width: 50px; height: 50px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; }
.coop-model-header .icon svg { width: 26px; height: 26px; }
.coop-model-header h3 { margin: 0; font-size: 20px; }
.coop-model-card p { margin: 0; color: var(--text-soft); line-height: 1.7; }
.coop-process { max-width: 800px; margin: 0 auto; }
.process-step { position: relative; padding-left: 56px; padding-bottom: 40px; }
.process-step:last-child { padding-bottom: 0; }
.process-step::before { content: ''; position: absolute; left: 24px; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, var(--primary), var(--primary-soft)); }
.process-step:last-child::before { display: none; }
.step-number { position: absolute; left: 0; top: 0; width: 50px; height: 50px; border-radius: 16px; background: var(--grad-primary); color: white; display: grid; place-items: center; font-weight: 800; font-size: 18px; box-shadow: 0 6px 18px var(--glow); }
.step-body h3 { margin: 0 0 8px; font-size: 18px; }
.step-body p { margin: 0; color: var(--text-soft); line-height: 1.7; }

/* ===== About ===== */
.about-intro { padding: 60px 0; }
.about-text { font-size: 17px; line-height: 1.9; color: var(--text-soft); }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
@media (max-width: 768px) { .about-stats { grid-template-columns: 1fr; } }
.about-history { background: var(--bg-soft); padding: 60px 0; }
.timeline { position: relative; max-width: 820px; margin: 0 auto; display: grid; gap: 18px; }
.timeline::before { content: ''; position: absolute; left: 88px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--primary), var(--primary-soft)); }
.timeline-item { position: relative; display: flex; align-items: center; gap: 28px; padding: 10px 0; }
.timeline-item::before { content: ''; position: absolute; left: 88px; top: 50%; width: 14px; height: 14px; border-radius: 50%; background: var(--grad-primary); transform: translate(-50%, -50%); box-shadow: 0 0 0 5px var(--primary-soft), 0 3px 8px var(--glow); }
.timeline-year { flex: 0 0 68px; text-align: center; }
.timeline-year span { display: inline-block; padding: 12px 0; font-size: 20px; font-weight: 800; color: var(--primary); background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; width: 68px; text-align: center; box-shadow: var(--shadow-light); }
.timeline-body { flex: 1; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; padding: 24px 26px; box-shadow: var(--shadow-light); transition: all .25s; }
.timeline-body:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--shadow); transform: translateY(-3px); }
.timeline-body h3 { margin: 0; font-size: 18px; line-height: 1.5; }
@media (max-width: 640px) {
  .timeline::before { left: 30px; }
  .timeline-item { gap: 14px; }
  .timeline-item::before { left: 30px; }
  .timeline-year span { width: 44px; font-size: 15px; }
  .timeline-item { padding: 6px 0; }
}
.about-values { padding: 60px 0; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 960px) { .values-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .values-grid { grid-template-columns: 1fr; } }
.value-card { padding: 30px 26px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-elev); position: relative; overflow: hidden; }
.value-card::after { content: ''; position: absolute; width: 140px; height: 140px; right: -50px; top: -50px; border-radius: 50%; background: var(--primary-soft); opacity: .6; }
.value-card:hover { border-color: var(--primary); box-shadow: var(--shadow-light); transform: translateY(-4px); }
.value-card h3 { margin: 0 0 8px; font-size: 18px; position: relative; }
.value-card p { margin: 0; color: var(--text-soft); font-size: 14px; position: relative; }

/* ===== News list ===== */
.news-list { display: grid; gap: 20px; }
.news-item { display: grid; grid-template-columns: 150px 1fr auto; gap: 22px; align-items: center; padding: 18px 26px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: all .25s; }
.news-item:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); box-shadow: var(--shadow-light); transform: translateY(-3px); }
.news-cover { width: 150px; height: 96px; border-radius: 10px; overflow: hidden; background: var(--primary-soft); flex-shrink: 0; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; }
.news-cover-empty { display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-size: 26px; }
.news-body { min-width: 0; }
.news-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; color: var(--text-soft); font-size: 13px; }
.news-item h3 { margin: 0; font-size: 20px; line-height: 1.4; }
.news-item .summary { margin: 8px 0 0; color: var(--text-soft); }
.news-item .read-more { white-space: nowrap; align-self: center; }
@media (max-width: 768px) {
  .news-item { grid-template-columns: 1fr; }
  .news-cover { width: 100%; height: 180px; }
  .news-item .read-more { justify-self: start; }
}

/* ===== News detail ===== */
.news-detail { max-width: 800px; margin: 0 auto; padding: 40px 0 80px; }
.news-detail-head h1 { margin: 0 0 12px; font-size: 32px; }
.news-detail-meta { color: var(--text-soft); margin-bottom: 32px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.news-detail-content { font-size: 17px; line-height: 2; }
.news-detail-content p { margin: 0 0 20px; color: var(--text-soft); }

/* ===== Footer ===== */
#site-footer { background: var(--bg-soft); border-top: 1px solid var(--border); }
.foot-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding: 60px 0; }
.foot-brand .foot-logo { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 20px; margin-bottom: 14px; }
.foot-brand .foot-logo img { height: 40px; width: auto; max-width: 180px; object-fit: contain; border-radius: 6px; }
.foot-brand .foot-logo .brand-badge { width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0; font-size: 18px; }
.foot-brand .foot-logo span { display: inline-flex; align-items: center; }
.foot-brand p { margin: 0; color: var(--text-soft); line-height: 1.7; }
.foot-inner h4 { margin: 0 0 16px; font-size: 16px; }
.foot-links { display: grid; gap: 8px; }
.foot-links a { color: var(--text-soft); transition: color .2s; }
.foot-links a:hover { color: var(--primary); }
.foot-bar { padding: 24px 0; border-top: 1px solid var(--border); background: var(--bg); text-align: center; color: var(--text-light); font-size: 14px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
@media (max-width: 768px) {
  .foot-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) { .foot-inner { grid-template-columns: 1fr; } }

/* ===== Animation ===== */
html { scroll-behavior: smooth; }
/* 关闭滚动淡入：内容默认直接可见，文字与图片随页面一起秒出 */
.animate-up { opacity: 1; transform: none; }
.animate-up.visible { opacity: 1; transform: none; }

/* ===== Scroll to top ===== */
#scroll-top { position: fixed; right: 24px; bottom: 24px; width: 48px; height: 48px; border-radius: 14px; background: var(--grad-primary); color: white; display: grid; place-items: center; box-shadow: 0 8px 22px var(--glow); opacity: 0; visibility: hidden; transition: all .25s; z-index: 90; }
#scroll-top.visible { opacity: 1; visibility: visible; }
#scroll-top:hover { transform: translateY(-3px); box-shadow: 0 12px 28px var(--glow); }

/* fade-in for images */
img { transition: opacity .3s; }
img.loading { opacity: 0; }
img.loaded { opacity: 1; }