:root {
  --brand: #ff7d00;
  --brand-dark: #e86900;
  --brand-soft: #fff3e6;
  --ink: #222222;
  --text: #4b4b4b;
  --muted: #8e8e93;
  --line: #ece7e1;
  --bg: #faf9f7;
  --card: #ffffff;
  --green: #21865a;
  --red: #c74a4a;
  --shadow: 0 12px 32px rgba(38, 30, 22, 0.08);
  --shadow-soft: 0 4px 16px rgba(38, 30, 22, 0.06);
  --radius: 18px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
::selection { background: var(--brand-soft); color: var(--brand-dark); }
.skip-link { position: absolute; top: -100%; left: 16px; z-index: 100; padding: 12px 24px; background: var(--brand); color: #fff; border-radius: 0 0 12px 12px; font-weight: 700; font-size: 14px; transition: top .2s; }
.skip-link:focus { top: 0; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.section { padding: 34px 0 52px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.eyebrow { margin: 0 0 6px; color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1,h2,h3 { color: var(--ink); line-height: 1.22; margin-top: 0; }
h1 { font-size: clamp(36px, 5vw, 64px); letter-spacing: -.04em; }
h2 { font-size: clamp(26px, 3vw, 36px); letter-spacing: -.025em; margin-bottom: 8px; }
h3 { font-size: 19px; }
p { margin-top: 0; }
.muted { color: var(--muted); }
.header { position: sticky; top: 0; z-index: 50; background: rgba(250,249,247,.9); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(236,231,225,.78); }
.nav { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; color: var(--ink); font-size: 20px; }
.brand-mark { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; background: var(--brand); color: #fff; box-shadow: 0 6px 16px rgba(255,125,0,.25); }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a { padding: 10px 14px; border-radius: 10px; color: #505050; font-weight: 650; font-size: 14px; }
.nav-links a:hover, .nav-links a.active { background: #fff; color: var(--brand); box-shadow: var(--shadow-soft); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; background: var(--ink); color: white; border-radius: 12px; font-weight: 700; font-size: 14px; }
.menu-btn { display: none; width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--line); background: white; cursor: pointer; }
.hero { padding: 48px 0 26px; }
.hero-card { position: relative; overflow: hidden; border-radius: 28px; background: radial-gradient(circle at 70% 0%, #ffe7cd 0, transparent 34%), linear-gradient(135deg, #fff8f1, #ffffff 58%, #fff3e6); border: 1px solid #f0e5da; box-shadow: var(--shadow); padding: clamp(34px, 6vw, 70px); display: grid; grid-template-columns: 1.12fr .88fr; min-height: 480px; align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy p { max-width: 620px; font-size: 17px; color: #6c625b; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent; font-weight: 750; cursor: pointer; transition: .2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 18px rgba(255,125,0,.25); }
.btn-primary:hover { background: var(--brand-dark); }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--ink); }
.hero-visual { position: relative; height: 330px; }
.device-card { position: absolute; inset: 24px 16px 8px 60px; border-radius: 24px; background: #1f2329; transform: rotate(-4deg); box-shadow: 0 30px 70px rgba(44,34,24,.2); padding: 18px; }
.device-screen { height: 100%; border-radius: 17px; background: linear-gradient(145deg,#252b33,#111418); display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 14px; }
.screen-block { border-radius: 13px; background: linear-gradient(145deg,rgba(255,125,0,.95),rgba(255,183,94,.62)); }
.screen-block:nth-child(2){ background: linear-gradient(145deg,#e9edf2,#9ca9b9); }
.screen-block:nth-child(3){ grid-column: 1 / 3; background: linear-gradient(90deg,#343b44,#1a1f25); position: relative; overflow:hidden; }
.screen-block:nth-child(3)::after{ content:""; position:absolute; width:55%; height:10px; left:14px; top:16px; border-radius:10px; background:#ff7d00; box-shadow:0 25px 0 #525c67, 0 50px 0 #343c45; }
.float-chip { position: absolute; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-soft); padding: 13px 15px; font-size: 13px; font-weight: 800; color: var(--ink); }
.float-chip.one { top: 6px; right: 4px; }
.float-chip.two { left: 12px; bottom: 18px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.trust-tag { display: inline-flex; align-items: center; gap: 7px; padding: 8px 11px; background: rgba(255,255,255,.7); border: 1px solid #efe5db; border-radius: 999px; color: #71685f; font-size: 13px; }
.grid { display: grid; gap: 18px; }
.product-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 3px 14px rgba(38,30,22,.04); overflow: hidden; transition: transform .28s cubic-bezier(.4,0,.2,1), box-shadow .28s cubic-bezier(.4,0,.2,1); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.product-image { position: relative; aspect-ratio: 16/10; background: linear-gradient(135deg, #f5f2ee 0%, #ede8e1 100%); overflow: hidden; }
.product-image::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.5) 50%, transparent 100%); animation: img-shimmer 1.8s ease-in-out infinite; opacity: 0; pointer-events: none; z-index: 1; }
.product-image.loading::before { opacity: 1; }
@keyframes img-shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.product-image img { width:100%; height:100%; object-fit: cover; }
.card-body { padding: 18px; }
.kicker { display: inline-flex; padding: 4px 9px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-dark); font-weight: 750; font-size: 12px; margin-bottom: 10px; }
.product-card h3 { margin-bottom: 8px; }
.product-card p { font-size: 14px; color: #6d6d6d; margin-bottom: 16px; }
.card-link { color: var(--brand); font-weight: 800; font-size: 14px; }
.category-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.category-card { padding: 22px; display: flex; align-items: center; gap: 14px; }
.category-icon { width: 48px; height: 48px; border-radius: 15px; background: var(--brand-soft); display:grid; place-items:center; font-size:24px; flex: 0 0 auto; }
.category-card h3 { margin: 0 0 3px; }
.category-card p { margin: 0; color: var(--muted); font-size: 13px; }
.latest-list { display: grid; gap: 12px; }
.latest-item { display: grid; grid-template-columns: 178px 1fr auto; gap: 18px; align-items: center; padding: 12px; background:#fff; border:1px solid var(--line); border-radius:16px; }
.latest-item img { width:178px; aspect-ratio: 16/10; object-fit: cover; border-radius:12px; background:#f4f1ed; }
.latest-item h3 { margin: 0 0 6px; }
.latest-item p { margin: 0 0 6px; font-size:14px; color:#6c6c6c; }
.meta { display:flex; flex-wrap:wrap; gap:14px; color:var(--muted); font-size:12px; }
.arrow { width:38px;height:38px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand);font-weight:900; }
.page-hero { padding: 48px 0 24px; }
.page-hero .panel { border-radius: 24px; padding: 34px 38px; background: linear-gradient(135deg,#fff7ef,#fff); border:1px solid #f0e5da; }
.page-hero h1 { font-size: clamp(34px,4vw,48px); margin-bottom:10px; }
.content-layout { display:grid; grid-template-columns: 250px 1fr; gap: 24px; align-items:start; }
.sidebar { position: sticky; top: 92px; background:#fff; border:1px solid var(--line); border-radius:16px; padding:14px; }
.sidebar a { display:flex; justify-content:space-between; padding:11px 12px; border-radius:10px; font-weight:700; font-size:14px; color:#646464; }
.sidebar a:hover,.sidebar a.active { background:var(--brand-soft); color:var(--brand-dark); }
.article-list { display:grid; gap:14px; transition: opacity .18s ease; }
.article-list.fade-out { opacity: 0; }
.article-row { display:grid; grid-template-columns: 220px 1fr; gap:18px; padding:13px; background:#fff; border:1px solid var(--line); border-radius:16px; }
.article-row img { width:220px; height:145px; object-fit:cover; border-radius:12px; background:#f3f0ec; }
.article-row h3 { margin-bottom:7px; }
.article-row p { font-size:14px; color:#6c6c6c; margin-bottom:10px; }
.detail-wrap { max-width: 900px; margin:0 auto; }
.article-head { padding: 48px 0 26px; text-align:center; }
.article-head h1 { font-size: clamp(34px,4.5vw,52px); max-width:860px; margin: 0 auto 16px; }
.article-cover { border-radius:24px; overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-soft); background:#f4f1ed; }
.article-cover img { width:100%; aspect-ratio: 16/7.5; object-fit:cover; }
.prose { background:#fff; border:1px solid var(--line); border-radius:20px; padding: clamp(24px,5vw,52px); margin:24px 0; font-size:17px; }
.prose h2 { margin-top:36px; font-size:26px; }
.prose p { margin-bottom:20px; }
.pros-cons { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:22px 0; }
.info-box { border-radius:16px; padding:18px; border:1px solid var(--line); background:#fcfbfa; }
.info-box.good h3 { color:var(--green); }
.info-box.bad h3 { color:var(--red); }
.info-box ul { padding-left:20px; margin-bottom:0; }
.buy-card { display:grid; grid-template-columns:170px 1fr auto; align-items:center; gap:20px; padding:18px; border-radius:18px; background:linear-gradient(135deg,#fff6ec,#fff); border:1px solid #f0dcc8; margin-top:28px; }
.buy-card img { width:170px; aspect-ratio:1; border-radius:14px; object-fit:cover; background:#f3f0ec; }
.notice { padding:13px 15px; border-radius:12px; background:#fff8ef; border:1px solid #f0dfcc; color:#756456; font-size:13px; margin-top:12px; }
.related { grid-template-columns: repeat(3,minmax(0,1fr)); }
.static-page { max-width:860px; margin:38px auto 70px; background:#fff; border:1px solid var(--line); border-radius:22px; padding:clamp(26px,5vw,54px); }
.static-page h1 { font-size:42px; }
.static-page h2 { margin-top:32px; font-size:24px; }
.static-page li { margin-bottom:8px; }
.footer { margin-top: 44px; background:#1f2022; color:#c8c8c8; }
.footer-top { padding:42px 0 28px; display:grid; grid-template-columns: 1.3fr .7fr .7fr; gap:30px; }
.footer .brand { color:#fff; margin-bottom:12px; }
.footer h3 { color:#fff; font-size:15px; margin-bottom:12px; }
.footer a { display:block; color:#b9b9b9; padding:4px 0; font-size:13px; }
.footer a:hover { color:#fff; }
.footer p { font-size:13px; max-width:480px; }
.footer-bottom { border-top:1px solid #353638; padding:17px 0 24px; display:flex; justify-content:space-between; gap:18px; font-size:12px; }
.footer-bottom a { display:inline; padding:0; color:#b9b9b9; }
.footer-bottom a:hover { color:#fff; text-decoration:underline; }
.empty { padding:50px 20px; text-align:center; background:#fff; border:1px dashed #ddd2c8; border-radius:18px; }
@media (max-width: 920px) {
  .hero-card { grid-template-columns:1fr; }
  .hero-visual { height:280px; margin-top:16px; }
  .product-grid { grid-template-columns:repeat(2,1fr); }
  .category-grid { grid-template-columns:repeat(2,1fr); }
  .content-layout { grid-template-columns:1fr; }
  .sidebar { position:static; display:flex; overflow:auto; gap:6px; }
  .sidebar a { white-space:nowrap; }
  .latest-item { grid-template-columns:140px 1fr; }
  .latest-item img { width:140px; }
  .latest-item .arrow { display:none; }
  .buy-card { grid-template-columns:120px 1fr; }
  .buy-card img { width:120px; }
  .buy-card .btn { grid-column:1 / 3; }
}
@media (max-width: 700px) {
  .container { width:min(calc(100% - 28px),var(--max)); }
  .nav { height:64px; }
  .menu-btn { display:block; }
  .nav-cta { display:none; }
  .nav-links { position:absolute; left:14px; right:14px; top:68px; padding:10px; background:#fff; border:1px solid var(--line); border-radius:14px; box-shadow:var(--shadow); display:flex; flex-direction:column; align-items:stretch; z-index:40; opacity:0; visibility:hidden; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease, visibility 0s .2s; pointer-events:none; }
  .nav-links.open { opacity:1; visibility:visible; transform:translateY(0); transition: opacity .2s ease, transform .2s ease, visibility 0s 0s; pointer-events:auto; }
  .nav-links a { width:100%; }
  .hero { padding-top:26px; }
  .hero-card { min-height:auto; padding:30px 22px; border-radius:22px; }
  .hero-visual { height:230px; }
  .device-card { left:30px; }
  .product-grid,.category-grid,.related { grid-template-columns:1fr; }
  .latest-item,.article-row { grid-template-columns:1fr; }
  .latest-item img,.article-row img { width:100%; height:auto; }
  .section-head { align-items:start; }
  .section-head .btn { display:none; }
  .page-hero .panel { padding:26px 22px; }
  .pros-cons { grid-template-columns:1fr; }
  .buy-card { grid-template-columns:1fr; }
  .buy-card img { width:100%; aspect-ratio:16/8; }
  .buy-card .btn { grid-column:auto; }
  .footer-top { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; }
}