/* 麦德亚艾灸净化站 - 暖色健康风设计系统 */
:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --accent: #c2410c;
  --accent-hover: #9a3412;
  --green: #3f7a5e;
  --text: #292524;
  --muted: #78716c;
  --border: #e7e5e4;
  --footer-bg: #1c1917;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(41, 37, 36, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
h1, h2, h3, h4 { line-height: 1.35; color: var(--text); }

.sn-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部 ===== */
.sn-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.sn-header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.sn-logo { display: flex; align-items: center; gap: 10px; }
.sn-logo img { display: block; height: 48px; width: auto; }
.sn-logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #ea7c3f);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}
.sn-logo small { display: block; font-size: 11px; color: var(--muted); font-weight: 400; }
.sn-nav { display: flex; gap: 6px; align-items: center; }
.sn-nav a { color: var(--text); padding: 8px 14px; border-radius: 8px; font-size: 15px; }
.sn-nav a:hover, .sn-nav a.current { background: #f5f0ea; color: var(--accent); }
.sn-header-cta {
  background: var(--accent); color: #fff !important; padding: 10px 20px;
  border-radius: 999px; font-weight: 600; font-size: 15px;
}
.sn-header-cta:hover { background: var(--accent-hover); }
.sn-menu-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 18px; cursor: pointer; color: var(--text); }

/* ===== Hero（深色沉浸式） ===== */
.sn-hero { position: relative; overflow: hidden; color: #f5efe8; background:
  radial-gradient(1200px 700px at 78% 12%, #3a2a1c 0%, transparent 58%),
  radial-gradient(900px 640px at 8% 88%, #2a1d12 0%, transparent 55%),
  linear-gradient(128deg, #221812 0%, #1a120c 48%, #150e08 100%);
}
.sn-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.sn-hero-bg::before { content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(620px 460px at 16% 20%, rgba(234,124,63,.20), transparent 62%),
    radial-gradient(700px 520px at 86% 78%, rgba(63,122,94,.20), transparent 64%);
  animation: sn-glow-drift 14s ease-in-out infinite alternate;
}
.sn-hero-bg::after { content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,244,232,.10) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 72%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 72%);
}
@keyframes sn-glow-drift { from { transform: translate3d(-2%, -1%, 0) scale(1); } to { transform: translate3d(2%, 2%, 0) scale(1.06); } }

/* 漂浮烟雾 */
.sn-smoke { position: absolute; width: 340px; height: 480px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255,238,220,.16), rgba(255,238,220,.05) 55%, transparent 72%);
  filter: blur(28px); opacity: 0; animation: sn-smoke-rise 11s ease-in-out infinite;
}
.sn-smoke-1 { left: 6%; bottom: -18%; animation-delay: 0s; }
.sn-smoke-2 { left: 42%; bottom: -22%; width: 280px; height: 420px; animation-delay: 3.6s; }
.sn-smoke-3 { right: 8%; bottom: -16%; width: 380px; height: 520px; animation-delay: 7.2s; }
@keyframes sn-smoke-rise {
  0%   { transform: translate3d(0, 12%, 0) rotate(0deg) scale(.92); opacity: 0; }
  22%  { opacity: .9; }
  55%  { transform: translate3d(4%, -26%, 0) rotate(6deg) scale(1.04); opacity: .75; }
  100% { transform: translate3d(-3%, -64%, 0) rotate(-5deg) scale(1.12); opacity: 0; }
}

.sn-hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; padding: 108px 0 148px; min-height: 640px; min-height: min(88vh, 880px); }

.sn-hero-eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 8px 18px; background: rgba(255,244,232,.08); border: 1px solid rgba(255,244,232,.22); border-radius: 999px; font-size: 13px; font-weight: 600; color: #ffd9b8; letter-spacing: .06em; margin-bottom: 28px; backdrop-filter: blur(6px); }
.sn-hero-eyebrow .sn-dot { width: 8px; height: 8px; border-radius: 50%; background: #f59e0b; box-shadow: 0 0 0 4px rgba(245,158,11,.22); animation: sn-dot-pulse 2.2s ease-in-out infinite; }
@keyframes sn-dot-pulse { 0%,100% { box-shadow: 0 0 0 4px rgba(245,158,11,.22); } 50% { box-shadow: 0 0 0 8px rgba(245,158,11,.08); } }

.sn-hero h1 { font-size: 62px; line-height: 1.14; letter-spacing: .01em; margin: 0 0 20px; color: #fdf8f1; text-shadow: 0 2px 24px rgba(0,0,0,.3); }
.sn-hero h1 em { font-style: normal; background: linear-gradient(100deg, #f59e0b 12%, #ea7c3f 88%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sn-hero .sn-sub { font-size: 17.5px; color: rgba(245,239,232,.72); margin: 0 0 34px; max-width: 46ch; line-height: 1.85; }

.sn-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.sn-btn { display: inline-block; padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 16px; border: 1px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease; }
.sn-btn-lg { padding: 16px 36px; font-size: 16.5px; }
.sn-btn-primary { background: linear-gradient(115deg, #ea7c3f, var(--accent) 55%, #a83a0e); color: #fff; box-shadow: 0 14px 34px rgba(234,124,63,.40), inset 0 1px 0 rgba(255,255,255,.25); }
.sn-btn-primary:hover { background: linear-gradient(115deg, #f59e0b, #ea7c3f 60%, var(--accent)); color: #fff; transform: translateY(-2px); box-shadow: 0 20px 42px rgba(234,124,63,.48); }
.sn-btn-ghost { background: rgba(255,244,232,.07); border-color: rgba(255,244,232,.3); color: #fdf8f1; font-weight: 700; letter-spacing: .03em; backdrop-filter: blur(6px); }
.sn-btn-ghost:hover { border-color: #f59e0b; color: #fbbf24; transform: translateY(-2px); background: rgba(255,244,232,.12); }
.sn-btn-outline { border-color: var(--accent); color: var(--accent); background: transparent; }
.sn-btn-outline:hover { background: var(--accent); color: #fff; }

.sn-hero-trust { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 44px; padding-top: 24px; border-top: 1px dashed rgba(255,244,232,.22); }
.sn-hero-trust span { display: flex; align-items: baseline; gap: 7px; font-size: 13.5px; color: rgba(245,239,232,.6); }
.sn-hero-trust strong { font-size: 17px; color: #fdf8f1; font-weight: 700; }

.sn-hero-visual { position: relative; }
.sn-hero-frame { position: relative; }
.sn-hero-frame::before { content: ""; position: absolute; inset: 20px -20px -20px 20px; border-radius: 22px; background: linear-gradient(130deg, rgba(234,124,63,.35), rgba(63,122,94,.30)); filter: blur(2px); z-index: 0; }
.sn-hero-frame::after { content: ""; position: absolute; inset: -32px; border-radius: 32px; background: radial-gradient(closest-side, rgba(234,124,63,.18), transparent 72%); filter: blur(20px); z-index: 0; }
.sn-hero-frame img { position: relative; z-index: 1; width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 18px; border: 1px solid rgba(255,244,232,.16); box-shadow: 0 32px 72px rgba(0,0,0,.5); }
.sn-hero-chip { position: absolute; z-index: 2; display: flex; flex-direction: column; gap: 2px; padding: 13px 19px; background: rgba(255,255,255,.94); border: 1px solid rgba(255,255,255,.6); border-radius: 14px; box-shadow: 0 16px 38px rgba(0,0,0,.34); backdrop-filter: blur(8px); animation: sn-float 5.2s ease-in-out infinite; }
.sn-hero-chip strong { font-size: 21px; color: var(--accent); font-weight: 800; letter-spacing: .01em; }
.sn-hero-chip span { font-size: 12px; color: #6b6560; }
.sn-hero-chip-tl { top: 24px; left: -26px; }
.sn-hero-chip-br { bottom: 26px; right: -22px; animation-delay: 2.6s; }
.sn-hero-chip-br strong { color: var(--green); }
@keyframes sn-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* 向下滚动指示 */
.sn-hero-scroll { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 24px; height: 40px; border: 2px solid rgba(255,244,232,.35); border-radius: 14px; }
.sn-hero-scroll span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: rgba(255,244,232,.7); animation: sn-scroll-hint 1.8s ease-in-out infinite; }
@keyframes sn-scroll-hint { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { transform: translateY(0); opacity: 0; } }

/* 优势卡上拉叠加 */
.sn-advantages { background: transparent; border: 0; }
.sn-advantages-overlap { position: relative; z-index: 5; margin-top: -72px; padding-bottom: 56px; }

/* ===== 区块标题 ===== */
.sn-section { padding: 56px 0; }
.sn-band { background: linear-gradient(180deg, #f7f1e8 0%, #faf7f2 100%); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sn-section-head { text-align: center; margin-bottom: 40px; }
.sn-eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.sn-section-head h2 { position: relative; display: inline-block; font-size: 32px; margin: 0 0 10px; padding-bottom: 14px; }
.sn-section-head h2::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 46px; height: 3px; border-radius: 2px; transform: translateX(-50%); background: linear-gradient(90deg, var(--accent), #ea7c3f); }
.sn-section-head p { color: var(--muted); margin: 0; }

/* ===== 网格与卡片 ===== */

/* ===== 产品网格 ===== */
.sn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sn-grid-4 { grid-template-columns: repeat(4, 1fr); }
.sn-grid-5 { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; }
.sn-grid-5 > .sn-card { width: 360px; max-width: 100%; }
.sn-grid-5 .sn-card { border-radius: 16px; }
.sn-grid-5 .sn-card img { height: 232px; }
.sn-grid-5 .sn-card-body { padding: 24px 26px 28px; }
.sn-grid-5 .sn-card-body h3 { font-size: 21px; }
.sn-grid-5 .sn-card-body p { font-size: 14px; margin-bottom: 18px; }
.sn-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; box-shadow: var(--shadow); transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
  display: flex; flex-direction: column;
}
.sn-card:hover { transform: translateY(-7px); box-shadow: 0 18px 40px rgba(41,37,36,.14); border-color: rgba(194,65,12,.32); }
.sn-card > a { display: block; overflow: hidden; }
.sn-card img { width: 100%; height: 200px; object-fit: cover; transition: transform .45s ease; }
.sn-card:hover img { transform: scale(1.05); }
.sn-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.sn-card-body h3 { margin: 0 0 8px; font-size: 18px; transition: color .2s ease; }
.sn-card:hover .sn-card-body h3 { color: var(--accent); }
.sn-card-body p { margin: 0 0 14px; color: var(--muted); font-size: 14px; flex: 1; }
.sn-card-link { font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; transition: gap .2s ease; }
.sn-card:hover .sn-card-link { gap: 9px; }
.sn-card-models { flex: 0 0 auto; margin: 0 0 10px; padding: 6px 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; color: var(--accent); font-size: 13px; font-weight: 600; }

/* ===== 案例中心 ===== */
.sn-case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 10px; }
.sn-case-tag { display: inline-block; padding: 3px 10px; background: var(--surface); border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); font-size: 12px; font-weight: 600; }
.sn-case-tag-dim { border-color: var(--border); color: var(--muted); font-weight: 400; }
.sn-case-note { margin-top: 28px; padding: 14px 18px; background: var(--surface); border-left: 3px solid var(--border); border-radius: 6px; color: var(--muted); font-size: 13px; }
.sn-case-config { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.sn-case-config-item { display: flex; align-items: baseline; gap: 10px; padding: 14px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
.sn-case-config-code { font-size: 16px; font-weight: 700; color: var(--accent); }
a.sn-case-config-code:hover { text-decoration: underline; }
.sn-case-config-qty { color: var(--text); font-size: 14px; font-weight: 600; white-space: nowrap; }
.sn-case-config-note { color: var(--muted); font-size: 13px; }
.sn-case-prose { color: var(--text); font-size: 15px; line-height: 1.9; }
.sn-case-prose p { margin: 0 0 14px; }
@media ( max-width: 720px ) { .sn-case-config { grid-template-columns: 1fr; } }

/* ===== 联系页地图 ===== */
.sn-map-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
.sn-map-wrap iframe { display: block; width: 100%; height: 440px; border: 0; }
.sn-map-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }
.sn-map-addr { font-weight: 600; color: var(--text); font-size: 15px; }
.sn-map-actions { display: flex; gap: 10px; flex-wrap: wrap; }
@media ( max-width: 720px ) { .sn-map-wrap iframe { height: 320px; } }

/* ===== 优势条 ===== */
.sn-advantages { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sn-adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.sn-adv { position: relative; text-align: center; padding: 30px 18px 26px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; box-shadow: 0 16px 38px rgba(20,12,6,.18); transition: transform .25s ease, box-shadow .25s ease; }
.sn-adv::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), #ea7c3f 55%, var(--green)); }
.sn-adv:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(41,37,36,.12); }
.sn-adv .sn-adv-num { font-size: 38px; font-weight: 800; line-height: 1.1; color: var(--text); }
.sn-adv .sn-adv-num i { font-style: normal; font-size: 22px; }
.sn-adv:nth-child(even) .sn-adv-num { color: var(--text); }
.sn-adv h3 { margin: 8px 0 5px; font-size: 16px; }
.sn-adv p { margin: 0; color: var(--muted); font-size: 13px; }

/* ===== 页面头 ===== */
.sn-page-hero { position: relative; overflow: hidden; padding: 58px 0; color: #f5efe8; border-bottom: 1px solid rgba(255,244,232,.10);
  background:
    radial-gradient(720px 320px at 84% 0%, rgba(234,124,63,.20), transparent 62%),
    radial-gradient(620px 300px at 8% 100%, rgba(63,122,94,.18), transparent 60%),
    linear-gradient(118deg, #221812 0%, #1a120c 52%, #150e08 100%);
}
.sn-page-hero::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,244,232,.09) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.5), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.5), transparent 85%);
}
.sn-page-hero .sn-container { position: relative; }
.sn-page-hero h1 { margin: 0 0 10px; font-size: 34px; color: #fdf8f1; text-shadow: 0 2px 16px rgba(0,0,0,.3); }
.sn-page-hero .sn-crumb { color: rgba(245,239,232,.6); font-size: 14px; }
.sn-page-hero .sn-crumb a { color: rgba(255,217,184,.85); }
.sn-page-hero .sn-crumb a:hover { color: #fbbf24; }

/* ===== 产品详情 ===== */
.sn-detail-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding: 40px 0; }
.sn-about-factory-wrap { margin: 8px 0 28px; }
.sn-about-factory { width: 100%; height: auto; border-radius: var(--radius); box-shadow: var(--shadow); display: block; }
.sn-about-body { max-width: 900px; margin: 0 auto; }
.sn-detail-hero img { border-radius: var(--radius); box-shadow: var(--shadow); }
.sn-detail-hero h1 { font-size: 32px; margin: 0 0 12px; }
.sn-detail-hero .sn-lead { color: var(--muted); font-size: 17px; }
.sn-spec-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.sn-spec-table th, .sn-spec-table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; font-size: 14px; }
.sn-spec-table th { background: #f5f0ea; width: 30%; font-weight: 600; }
.sn-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.sn-feature-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.sn-feature-item h3 { margin: 0 0 6px; font-size: 16px; color: var(--green); }
.sn-feature-item p { margin: 0; color: var(--muted); font-size: 14px; }
.sn-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.sn-gallery img { border-radius: var(--radius); box-shadow: var(--shadow); width: 575px; height: 440px; max-width: 100%; object-fit: cover; }
.sn-case-figure { text-align: center; }
.sn-case-figure img { width: 100%; max-width: 820px; height: auto; border-radius: var(--radius); box-shadow: var(--shadow); }

/* ===== FAQ ===== */
.sn-faq { margin: 40px 0; }
.sn-faq h2 { position: relative; text-align: center; font-size: 30px; margin: 0 0 30px; padding-bottom: 14px; }
.sn-faq h2::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 46px; height: 3px; border-radius: 2px; transform: translateX(-50%); background: linear-gradient(90deg, var(--accent), #ea7c3f); }
.sn-faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; overflow: hidden; transition: border-color .2s ease, box-shadow .2s ease; }
.sn-faq-item:hover { border-color: rgba(194,65,12,.3); }
.sn-faq-item[open] { border-color: rgba(194,65,12,.4); box-shadow: 0 10px 26px rgba(41,37,36,.08); }
.sn-faq-item summary { padding: 17px 22px; font-weight: 600; cursor: pointer; list-style: none; position: relative; transition: color .2s ease; }
.sn-faq-item summary:hover { color: var(--accent); }
.sn-faq-item summary::after { content: "+"; position: absolute; right: 20px; color: var(--accent); font-size: 20px; transition: transform .25s ease; }
.sn-faq-item[open] summary::after { content: "−"; transform: rotate(180deg); }
.sn-faq-a { padding: 0 22px 18px; color: var(--muted); line-height: 1.8; }
.sn-faq-a p { margin: 0; }

/* ===== 作者块 ===== */
.sn-author-box { display: flex; gap: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin: 32px 0; }
.sn-author-avatar { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), #ea7c3f); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; flex-shrink: 0; }
.sn-author-info strong { display: block; }
.sn-author-title { font-size: 13px; color: var(--accent); }
.sn-author-info p { margin: 6px 0 0; font-size: 14px; color: var(--muted); }

/* ===== 信任块 ===== */
.sn-trust { padding: 24px 0 48px; }
.sn-trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sn-trust-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.sn-trust-card h3 { margin: 0 0 8px; font-size: 16px; color: var(--accent); }
.sn-trust-card p { margin: 0; font-size: 14px; color: var(--muted); }

/* ===== 文章 ===== */
.sn-article { max-width: 800px; margin: 0 auto; padding: 40px 20px; }
.sn-article h1 { font-size: 30px; }
.sn-article-meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.sn-article-content h2 { font-size: 22px; margin-top: 36px; padding-left: 12px; border-left: 4px solid var(--accent); }
.sn-article-content h3 { font-size: 18px; margin-top: 28px; }
.sn-article-content img { border-radius: var(--radius); }
.sn-news-grid .sn-card img { height: 180px; }
.sn-news-date { font-size: 13px; color: var(--muted); }

/* ===== CTA 条 ===== */
.sn-cta-band { position: relative; overflow: hidden; background: linear-gradient(118deg, #7c2d12 0%, var(--accent) 46%, #d6541a 78%, #8f3510 100%); border-radius: 18px; color: #fff; padding: 52px 48px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; box-shadow: 0 22px 48px rgba(124,45,18,.30); }
.sn-cta-glow { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(420px 300px at 84% 18%, rgba(255,255,255,.16), transparent 62%), radial-gradient(360px 260px at 8% 88%, rgba(255,214,170,.14), transparent 60%); }
.sn-cta-band h2 { position: relative; color: #fff; margin: 0 0 8px; font-size: 28px; }
.sn-cta-band p { position: relative; margin: 0; opacity: .9; }
.sn-cta-band .sn-cta-btn { position: relative; background: #fff; color: var(--accent); font-weight: 700; letter-spacing: .02em; box-shadow: 0 12px 26px rgba(0,0,0,.22); }
.sn-cta-band .sn-cta-btn:hover { background: #fdf3ea; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(0,0,0,.26); }

/* ===== 空态提示（分类页暂无型号时） ===== */
.sn-empty-hint {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  color: var(--muted);
}
.sn-empty-hint p { margin: 0 0 8px; }
.sn-empty-hint a { font-weight: 600; }

/* ===== 页脚 ===== */
.sn-footer { background: var(--footer-bg); color: #a8a29e; margin-top: 64px; }

/* ===== 双向跳转悬浮按钮 ===== */
#ast-scroll-top { display: none !important; } /* 隐藏 Astra 原生回到顶部，避免与新按钮重复 */
.sn-jump { position: fixed; right: 16px; bottom: 96px; z-index: 900; display: flex; flex-direction: column; gap: 10px; opacity: 0; pointer-events: none; transition: opacity .4s ease; }
.sn-jump.sn-jump-visible { opacity: 1; pointer-events: auto; }
.sn-jump-btn { width: 60px; height: 76px; border: 0; border-radius: 12px; color: #fff; cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; transition: opacity .25s ease, transform .18s ease, background .18s ease; opacity: 1; }
.sn-jump-btn svg { width: 52px; height: 52px; }
.sn-jump-btn span { font-size: 16px; font-weight: 700; line-height: 1; }
.sn-jump-top { background: linear-gradient(135deg, rgba(240,136,63,.7), rgba(224,106,28,.7)); box-shadow: 0 8px 22px rgba(224,106,28,.38); }
.sn-jump-bottom { background: linear-gradient(135deg, rgba(61,139,255,.7), rgba(31,106,224,.7)); box-shadow: 0 8px 22px rgba(47,123,255,.38); }
.sn-jump-top:hover { transform: translateY(-2px); filter: brightness(1.08); }
.sn-jump-bottom:hover { transform: translateY(2px); filter: brightness(1.08); }
.sn-jump-btn:active { transform: scale(.94); }
.sn-jump-at-top #snJumpTop { opacity: 0; pointer-events: none; }
.sn-jump-at-bottom #snJumpBottom { opacity: 0; pointer-events: none; }
@media (max-width: 640px) { .sn-jump { right: 12px; bottom: 110px; } .sn-jump-btn { width: 54px; height: 68px; } .sn-jump-btn svg { width: 46px; height: 46px; } .sn-jump-btn span { font-size: 15px; } }
.sn-footer-grid { display: grid; grid-template-columns: 1.3fr .8fr 1.05fr 1.6fr; gap: 32px; padding: 48px 0 32px; }
.sn-footer h4 { color: #fff; font-size: 16px; margin: 0 0 14px; }
.sn-footer a { color: #a8a29e; display: block; padding: 4px 0; font-size: 14px; }
.sn-footer a:hover { color: #fff; }
.sn-footer p { font-size: 14px; margin: 4px 0; }
.sn-footer-contact p { display: flex; align-items: baseline; gap: 6px; line-height: 1.9; margin: 2px 0; }
.sn-footer-contact p > strong { color: #d6d3d1; font-weight: 500; flex: 0 0 auto; }
.sn-footer-contact a { display: inline; padding: 0; color: #e7e5e4; }
.sn-footer-contact a:hover { color: #fbbf24; }
.sn-footer-contact .sn-fc-nowrap { white-space: nowrap; }
.sn-footer-contact .sn-fc-sep { color: #57534e; margin: 0 2px; }
.sn-footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.sn-footer-brand img { display: block; height: 40px; width: auto; background: #fff; padding: 5px 9px; border-radius: 8px; }
.sn-footer-bottom { border-top: 1px solid #44403c; padding: 18px 0; font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.sn-footer-bottom a { display: inline; }

/* ===== 联系 ===== */
.sn-contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.sn-contact-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 36px; }
.sn-contact-body { display: flex; gap: 28px; align-items: flex-start; }
.sn-contact-lines { flex: 1; min-width: 0; }
.sn-contact-qr { flex: 0 0 200px; width: 200px; margin: 0; text-align: center; }
.sn-contact-qr img { width: 200px; height: 200px; border: 1px solid var(--border); border-radius: 8px; background: #fff; display: block; }
.sn-contact-qr figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
.sn-contact-card h3 { margin-top: 0; }
.sn-contact-line { display: flex; gap: 10px; padding: 8px 0; font-size: 15px; }
.sn-contact-line strong { min-width: 72px; color: var(--muted); font-weight: 500; }
.sn-contact-single { max-width: 760px; margin: 0 auto; }
.sn-contact-single .sn-contact-card h3 { text-align: center; margin-bottom: 18px; }
.sn-contact-hint { text-align: center; color: var(--muted); font-size: 14px; margin: 16px 0 0; }

/* ===== 入场动画 ===== */
.sn-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.22,.61,.36,1); }
.sn-revealed { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .sn-reveal { opacity: 1; transform: none; transition: none; }
  .sn-hero-chip, .sn-smoke, .sn-hero-eyebrow .sn-dot, .sn-hero-scroll span, .sn-hero-bg::before { animation: none; }
  .sn-smoke { opacity: .35; }
}

/* ===== 首页轮播（总宽 1920px） ===== */
.sn-carousel { max-width: 1920px; margin: 0 auto; background: var(--surface); }
.sn-carousel-frame { position: relative; width: 100%; aspect-ratio: 2982 / 1132; overflow: hidden; background: #eef2f6; }
.sn-carousel-frame .sn-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease; }
.sn-carousel-frame .sn-slide.is-active { opacity: 1; }
.sn-carousel-frame .sn-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sn-carousel-frame .sn-slide picture { display: block; width: 100%; height: 100%; }
.sn-carousel-frame .sn-slide picture img { width: 100%; height: 100%; object-fit: cover; }
.sn-carousel-frame .sn-slide a { display: block; width: 100%; height: 100%; }
.sn-carousel-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 10px; z-index: 2; }
.sn-carousel-dots button { width: 26px; height: 5px; border: none; border-radius: 3px; background: rgba(255,255,255,.55); cursor: pointer; padding: 0; transition: background .3s; }
.sn-carousel-dots button.is-active { background: #fff; }
.sn-carousel-arrow {
	position: absolute; top: 50%; transform: translateY(-50%);
	width: 48px; height: 48px; border: none; border-radius: 50%;
	background: rgba(0,0,0,.32); color: #fff; cursor: pointer; z-index: 3;
	display: flex; align-items: center; justify-content: center;
	opacity: .75; transition: background .25s, opacity .25s;
	-webkit-appearance: none; appearance: none; padding: 0;
}
.sn-carousel-arrow:hover { background: rgba(0,0,0,.55); opacity: 1; }
.sn-carousel-arrow.sn-prev { left: 18px; }
.sn-carousel-arrow.sn-next { right: 18px; }
.sn-carousel-arrow::before {
	content: ''; width: 12px; height: 12px; display: block;
	border-top: 3px solid #fff; border-right: 3px solid #fff;
}
.sn-carousel-arrow.sn-prev::before { transform: rotate(-135deg); margin-left: 5px; }
.sn-carousel-arrow.sn-next::before { transform: rotate(45deg); margin-right: 5px; }
@media (prefers-reduced-motion: reduce) {
  .sn-carousel-frame .sn-slide { transition: none; }
}
@media (max-width: 640px) {
  .sn-carousel-frame { aspect-ratio: 2 / 3; }
  .sn-carousel-frame .sn-slide img { object-position: center; }
  .sn-carousel-dots button { width: 18px; }
  .sn-carousel-arrow { display: none; }
  .sn-contact-body { flex-direction: column; align-items: center; gap: 18px; }
  .sn-contact-qr { flex: none; width: 200px; margin: 0 auto; }
  .sn-contact-card { padding: 24px 18px; }
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .sn-grid, .sn-grid-4, .sn-adv-grid, .sn-trust-grid { grid-template-columns: repeat(2, 1fr); }
  .sn-grid-5 > .sn-card { width: calc(50% - 14px); }
  .sn-hero-inner, .sn-detail-hero, .sn-contact-grid { grid-template-columns: 1fr; }
  .sn-footer-grid { grid-template-columns: 1fr 1fr; }
  .sn-footer-contact .sn-fc-nowrap { white-space: normal; }
  .sn-hero h1 { font-size: 42px; }
  .sn-hero-inner { gap: 44px; padding: 64px 0 120px; min-height: 0; }
  .sn-hero-chip-tl { left: 10px; }
  .sn-hero-chip-br { right: 10px; }
  .sn-smoke-2 { display: none; }
}
@media (max-width: 640px) {
  .sn-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--surface); flex-direction: column; align-items: stretch; padding: 12px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .sn-nav.open { display: flex; }
  .sn-menu-toggle { display: block; }
  .sn-header-cta { display: none; }
  .sn-grid, .sn-grid-4, .sn-adv-grid, .sn-trust-grid, .sn-features, .sn-gallery { grid-template-columns: 1fr; }
  .sn-grid-5 > .sn-card { width: 100%; }
  .sn-gallery img { width: 100%; height: auto; aspect-ratio: 575 / 440; }
  .sn-hero-inner { padding: 44px 0 110px; }
  .sn-hero h1 { font-size: 33px; }
  .sn-hero-actions { flex-wrap: nowrap; gap: 10px; }
  .sn-hero-actions .sn-btn { flex: 1 1 0; min-width: 0; padding: 14px 10px; font-size: 15px; text-align: center; white-space: nowrap; }
  .sn-hero-trust { gap: 16px; }
  .sn-hero-chip { padding: 9px 13px; }
  .sn-hero-chip strong { font-size: 16px; }
  .sn-hero-chip span { font-size: 11px; }
  .sn-smoke { width: 240px; height: 340px; }
  .sn-advantages-overlap { margin-top: -56px; }
  .sn-hero-scroll { display: none; }
  .sn-section { padding: 40px 0; }
  .sn-section-head h2 { font-size: 26px; }
  .sn-cta-band { padding: 32px 24px; }
}