*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;background:var(--bg,#f6f7f9);color:var(--ink,#0d1520)}
:root{--p:#0b1f3a;--a:#2f6fed;--h1:#0b1f3a;--h2:#2f6fed;--ink:#0d1520;--muted:#7b8aa3;--line:#e9edf3;--bg:#f6f7f9;--card:#fff}
.wrap{max-width:520px;margin:0 auto;min-height:100vh;position:relative;padding-bottom:96px}
.eyebrow{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
/* 顶栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;height:62px;padding:0 20px;position:sticky;top:0;z-index:40;background:rgba(246,247,249,.86);backdrop-filter:saturate(180%) blur(14px)}
.topbar .brand{display:flex;align-items:center;gap:10px}
.topbar .mark{width:34px;height:34px;display:grid;place-items:center;overflow:hidden}
.topbar .mark img{max-width:32px;max-height:32px;object-fit:contain}
.topbar .mark svg{width:30px;height:30px;fill:var(--p)}
.topbar .name{font-weight:700;font-size:15px;letter-spacing:.02em}
.topbar .act{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--ink);text-decoration:none;background:transparent}
.topbar .act svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6}
/* 大图 hero */
.hero{position:relative;overflow:hidden;background:#0b0f19}
.hero .pic{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}
.hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.10) 0%,rgba(6,10,18,.35) 45%,rgba(6,10,18,.82) 100%)}
.hero .body{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;padding:0 24px 30px;height:64vh;min-height:440px;color:#fff}
.hero .logo{width:56px;height:56px;display:grid;place-items:center;margin-bottom:18px}
.hero .logo img{max-width:56px;max-height:56px;object-fit:contain;filter:brightness(0) invert(1)}
.hero .logo .badge{width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.94);display:grid;place-items:center;overflow:hidden}
.hero .logo .badge img{filter:none;width:38px;height:38px}
.hero h1{margin:0;font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-.02em}
.hero .sub{margin:10px 0 0;font-size:14px;color:rgba(255,255,255,.72);letter-spacing:.02em}
.hero .cta{display:inline-flex;align-items:center;gap:8px;margin-top:22px;align-self:flex-start;height:44px;padding:0 20px;border-radius:999px;border:1px solid rgba(255,255,255,.5);color:#fff;text-decoration:none;font-size:13px;letter-spacing:.08em;backdrop-filter:blur(4px)}
/* 功能卡 */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0 20px;margin-top:-26px;position:relative;z-index:5}
.tile{background:var(--card);border-radius:20px;padding:18px 14px;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:10px;box-shadow:0 18px 40px rgba(10,20,40,.10)}
.tile .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--h1),var(--h2))}
.tile .ic svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.6}
.tile b{font-size:16px;letter-spacing:.01em}
.tile span{font-size:12px;color:var(--muted)}
/* 章节 */
.section{padding:36px 20px 0}
.section .head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:18px}
.section h2{font-size:21px;margin:0;letter-spacing:-.01em}
.section .head a{font-size:12px;color:var(--muted);text-decoration:none;letter-spacing:.06em}
/* 车型卡：图容器 */
.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0 20px}
.car-card{position:relative;border-radius:20px;overflow:hidden;text-decoration:none;color:#fff;background:#dfe4ec;display:block}
.car-card .ph{position:relative;aspect-ratio:4/3;background-size:cover;background-position:center}
.car-card .ph:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 42%,rgba(0,0,0,.68) 100%)}
.car-card.big{grid-column:1/-1}
.car-card.big .ph{aspect-ratio:16/10}
.car-card .meta{position:absolute;left:16px;right:16px;bottom:14px;z-index:2}
.car-card .tag{display:inline-block;font-size:10px;letter-spacing:.12em;padding:4px 9px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(4px);margin-bottom:8px}
.car-card b{display:block;font-size:17px;letter-spacing:.01em}
.car-card small{font-size:11px;color:rgba(255,255,255,.72)}
/* 悬浮客服 */
.float{position:fixed;right:18px;bottom:22px;z-index:50}
.float a{display:flex;align-items:center;gap:8px;background:#0d1520;color:#fff;text-decoration:none;border-radius:999px;padding:12px 18px 12px 14px;font-size:13px;letter-spacing:.04em;box-shadow:0 16px 34px rgba(8,14,26,.28)}
.float .dot{width:22px;height:22px;border-radius:50%;background:var(--a);display:grid;place-items:center}
.float .dot svg{width:13px;height:13px;stroke:#fff;fill:none;stroke-width:1.8}
/* ===== 模板 variant ===== */
body.tpl-official{--bg:#fff;--card:#fff}
body.tpl-official .topbar{background:rgba(255,255,255,.9);border-bottom:1px solid var(--line)}
body.tpl-official .hero{background:#fff;color:var(--ink)}
body.tpl-official .hero .pic{opacity:.0}
body.tpl-official .hero .shade{display:none}
body.tpl-official .hero .body{height:auto;padding:36px 24px 30px;color:var(--ink);border-bottom:1px solid var(--line)}
body.tpl-official .hero .logo{margin-bottom:14px}
body.tpl-official .hero .logo img{filter:none}
body.tpl-official .hero .logo .badge{background:#fff;border:1px solid var(--line)}
body.tpl-official .hero h1{font-size:27px}
body.tpl-official .hero .sub{color:var(--muted)}
body.tpl-official .hero .cta{border-color:var(--line);color:var(--ink)}
body.tpl-official .tiles{margin-top:18px}
body.tpl-official .tile{box-shadow:none;border:1px solid var(--line);border-radius:14px}
body.tpl-official .car-card{background:#f4f6f9}
body.tpl-official .car-card .ph:after{background:linear-gradient(180deg,rgba(255,255,255,0) 50%,rgba(255,255,255,.9) 100%)}
body.tpl-official .car-card .meta{color:var(--ink)}
body.tpl-official .car-card .tag{color:var(--muted);background:#f6f7f9;border:1px solid var(--line)}
body.tpl-official .car-card small{color:var(--muted)}
body.tpl-official .float a{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:0 10px 24px rgba(10,20,40,.08)}
body.tpl-official .float .dot{background:var(--p)}
body.tpl-model .hero{background:#0b0f19}
body.tpl-model .hero .body{height:auto;padding:26px 24px 26px;min-height:0;color:#fff}
body.tpl-model .hero .pic{position:absolute;inset:0}
body.tpl-model .hero .body{position:relative;z-index:2}
body.tpl-model .hero .logo{margin-bottom:12px}
body.tpl-model .hero h1{font-size:28px}
body.tpl-model .hero .cta{margin-top:16px;height:40px}
body.tpl-model .section{padding-top:26px}
/* ===== 登录页 ===== */
.login-wrap{min-height:100vh;position:relative;overflow:hidden;display:flex;flex-direction:column}
.login-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.login-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.18) 0%,rgba(6,10,18,.45) 40%,rgba(246,247,249,1) 78%)}
.login-top{position:relative;z-index:2;padding:26px 24px 0;color:#fff}
.login-top .mark{width:54px;height:54px;display:grid;place-items:center;margin-bottom:20px}
.login-top .mark img{max-width:54px;max-height:54px;object-fit:contain;filter:brightness(0) invert(1)}
.login-top .eyebrow{color:rgba(255,255,255,.66)}
.login-top h1{margin:10px 0 4px;font-size:32px;letter-spacing:-.02em}
.login-top p{margin:0;font-size:13px;color:rgba(255,255,255,.72)}
.login-card{position:relative;z-index:3;margin:28vh 16px 0;background:#fff;border-radius:26px;padding:24px 20px 20px;box-shadow:0 26px 60px rgba(8,14,26,.18)}
.login-card .eyebrow{margin-bottom:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.field input{width:100%;height:50px;border:none;border-bottom:1px solid var(--line);border-radius:0;background:transparent;font-size:17px;letter-spacing:.02em;outline:none;padding:0 2px}
.field input:focus{border-color:var(--p)}
.row2{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}
.code-btn{height:44px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:#f6f7f9;color:var(--p);font-weight:600;font-size:12px;letter-spacing:.06em}
.btn{display:block;width:100%;height:52px;border:none;border-radius:16px;background:var(--p);color:#fff;font-size:16px;font-weight:700;letter-spacing:.04em;box-shadow:0 14px 30px rgba(10,20,40,.18)}
.hint{display:none;font-size:12px;color:#b45309;background:#fff8ec;border:1px solid #ffe3b0;border-radius:10px;padding:9px 12px;margin-top:10px}
.hint.on{display:block}
.link{display:block;text-align:center;font-size:12px;color:var(--muted);margin-top:16px;text-decoration:none;letter-spacing:.04em}
/* 详情页 */
.detail{padding:66px 20px 120px}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.gallery .g1{grid-column:1/-1;aspect-ratio:16/10;border-radius:22px;background-size:cover;background-position:center;background-color:#e7ebf1}
.gallery .g{aspect-ratio:1/1;border-radius:18px;background-size:cover;background-position:center;background-color:#e7ebf1}
.detail h1{font-size:28px;margin:22px 0 6px;letter-spacing:-.02em}
.detail .sub{color:var(--muted);font-size:13px;margin:0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 0}
.chip{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 13px}
.detail .actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}
.detail .actions a{height:48px;border-radius:14px;display:grid;place-items:center;text-decoration:none;font-size:14px;letter-spacing:.04em}
.detail .actions .primary{background:var(--p);color:#fff}
.detail .actions .ghost{border:1px solid var(--line);color:var(--ink)}
/* 管理页 */
.admin{max-width:980px;margin:24px auto;padding:0 18px}
.admin h1{font-size:20px;letter-spacing:-.01em}
.admin .box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:18px}
.admin label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block;margin:16px 0 8px}
.admin select,.admin input{width:100%;height:44px;border-radius:11px;border:1px solid var(--line);padding:0 12px;font-size:14px;background:#f9fafc}
.admin .btn2{display:inline-block;margin-top:18px;height:44px;padding:0 22px;border:none;border-radius:11px;background:var(--p);color:#fff;font-weight:600;font-size:14px;cursor:pointer}
.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.brand-tile{border:1px solid var(--line);border-radius:14px;padding:12px 8px;cursor:pointer;text-align:center;background:#fff;position:relative}
.brand-tile.sel{border-color:var(--a);box-shadow:0 0 0 3px rgba(47,111,237,.10)}
.brand-tile .lg{height:40px;display:grid;place-items:center;margin-bottom:6px}
.brand-tile .lg img{max-width:36px;max-height:36px;object-fit:contain}
.brand-tile .nm{font-size:13px;font-weight:600}
.brand-tile .en{font-size:10px;color:var(--muted);letter-spacing:.06em}
.brand-tile .collect{margin-top:6px;font-size:11px;color:var(--a);background:none;border:1px dashed #cfe0ff;border-radius:8px;padding:3px 6px;cursor:pointer;width:100%}
.tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.tpl-card{border:1px solid var(--line);border-radius:14px;padding:14px;cursor:pointer}
.tpl-card.sel{border-color:var(--a);box-shadow:0 0 0 3px rgba(47,111,237,.10)}
.tpl-card b{font-size:14px}.tpl-card .d{font-size:12px;color:var(--muted);margin-top:4px}
.msg{background:#ecfdf5;border:1px solid #a7f3d0;color:#047857;padding:10px 12px;border-radius:10px;font-size:13px;margin-bottom:12px}
.preview a{display:inline-block;font-size:13px;color:var(--a);text-decoration:none;border:1px solid #d7e6ff;padding:9px 14px;border-radius:10px;margin:0 8px 8px 0}
/* v4 品牌优势 / 详情图容器 */
.points{display:flex;flex-direction:column;gap:12px}
.point{display:flex;gap:14px;align-items:flex-start;background:var(--card);border-radius:16px;padding:16px 18px;box-shadow:0 10px 28px rgba(10,20,40,.05)}
.point .pic2{width:42px;height:42px;border-radius:12px;background:#f1f5fd;display:grid;place-items:center;flex:none}
.point .pic2 svg{width:22px;height:22px;fill:none;stroke:var(--p);stroke-width:1.6}
.point b{font-size:15px;letter-spacing:.01em}
.point span{display:block;font-size:12px;color:var(--muted);margin-top:4px;line-height:1.5}
.hero-img{aspect-ratio:16/10;border-radius:22px;background-size:cover;background-position:center;background-color:#e7ebf1}
.gallery2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.gallery2 .g{aspect-ratio:1/1;border-radius:18px;background-size:cover;background-position:center;background-color:#e7ebf1}
body.tpl-official .point{box-shadow:none;border:1px solid var(--line)}
.topbar .name .en{font-weight:500;color:var(--muted);font-size:12px;letter-spacing:.12em}
.section .lead{font-size:13px;line-height:1.7;color:var(--muted);margin:0 0 16px}
.bigimg{height:220px;border-radius:22px;background-size:cover;background-position:center;background-color:#0f172a;margin-bottom:12px}
.bigimg.half{height:170px}
body.tpl-official .bigimg{border:1px solid var(--line)}