/* 一起AI · 网站原型 全局样式 v0.1 */
:root{
  --bg:#F8F3EC; --card:#FFFFFF;
  --ink:#2A1F14; --ink-2:#6B5B47; --ink-3:#A08F7A;
  --line:#E8DCC8; --line-2:#D9CBB2;
  --cta:#F4A261; --cta-deep:#E88A3F;
  --bean:#E07856; --bean-soft:#FBEAE2;
  --cash:#2F6B4E; --cash-soft:#E6F0E9;
  --tag:#B8C8A8; --tag-soft:#EFF3E8;
  --warn:#B4472F; --warn-soft:#F7E5DF;
  --radius:16px; --radius-s:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg); color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
  font-size:15px; line-height:1.7; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 发布说明 ===== */
.prototype-notice{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:24px 0 0;padding:12px 16px;background:#FFF7E8;border:1px solid #E8C98F;border-radius:12px;color:var(--ink-2);font-size:13px;line-height:1.6}
.prototype-notice .notice-title{padding:3px 9px;border-radius:7px;background:var(--warn);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em}
.prototype-notice span:not(.notice-title){display:inline-flex;align-items:center;gap:5px}
.prototype-notice span+span{border-left:1px solid #E8C98F;padding-left:10px}
.prototype-notice b{color:var(--ink);font-weight:700}

/* ===== Header ===== */
.hd{position:sticky;top:0;z-index:50;background:rgba(248,243,236,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:18px;letter-spacing:.02em}
.logo-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--cta),#E07856);display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:800}
.nav{display:flex;gap:4px;flex:1}
.nav a{padding:7px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);transition:.15s}
.nav a:hover{background:#fff;color:var(--ink)}
.nav a.on{background:var(--ink);color:#fff}
.hd-right{display:flex;align-items:center;gap:14px}
.bean-pill{display:flex;align-items:center;gap:6px;background:var(--bean-soft);border:1px solid #F2CDBB;border-radius:20px;padding:5px 13px;font-size:13px;font-weight:600;color:var(--bean);cursor:pointer}
.bean-pill .num{font-variant-numeric:tabular-nums}
.bean-pill:hover{background:#F8DFD2}
.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#C9B295,#A08F7A);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}

/* ===== Footer ===== */
.ft{background:#F1EADC;border-top:1px solid var(--line);margin-top:80px}
.ft-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:52px 0 40px}
.ft h5{font-size:13px;margin-bottom:14px;color:var(--ink)}
.ft a,.ft p{display:block;font-size:13px;color:var(--ink-2);margin-bottom:9px}
.ft a:hover{color:var(--ink)}
.ft-brand .logo{margin-bottom:14px}
.ft-bad{font-size:12px;color:var(--ink-3);line-height:1.8;margin-top:6px}
.ft-copy{border-top:1px solid var(--line-2);padding:18px 0 26px;font-size:12px;color:var(--ink-3);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ===== 通用组件 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:none;cursor:pointer;font-family:inherit;border-radius:var(--radius-s);font-size:14px;font-weight:600;padding:11px 22px;transition:.15s}
.btn-pri{background:var(--cta);color:#3A2410}
.btn-pri:hover{background:var(--cta-deep);color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{opacity:.88}
.btn-ghost{background:#fff;border:1px solid var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-3)}
.btn-block{width:100%}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.tag{display:inline-block;font-size:11.5px;font-weight:600;padding:2px 9px;border-radius:20px}
.tag-free{background:var(--tag-soft);color:#5F7247}
.tag-bean{background:var(--bean-soft);color:var(--bean)}
.tag-cash{background:var(--cash-soft);color:var(--cash)}
.tag-warn{background:var(--warn-soft);color:var(--warn)}
.sec-title{display:flex;align-items:baseline;justify-content:space-between;margin:56px 0 22px}
.sec-title h2{font-size:22px;font-weight:700;letter-spacing:-.01em}
.sec-title a{font-size:13px;color:var(--ink-3)}
.sec-title a:hover{color:var(--ink)}

/* 面包屑 */
.crumb{display:flex;gap:8px;font-size:13px;color:var(--ink-3);padding:22px 0 4px}
.crumb a:hover{color:var(--ink)}

/* ===== 首页 Hero ===== */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding:64px 0 30px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 10px;border-radius:999px;background:#FBF0E4;border:1px solid #F0DCC4;font-size:13px;font-weight:700;color:#8A5A2B;letter-spacing:.06em;margin-bottom:20px}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--bean);display:block}
.hero h1{font-size:44px;line-height:1.22;font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--bean)}
.hero p{font-size:16px;color:var(--ink-2);margin-bottom:28px;max-width:480px}
.hero-btns{display:flex;gap:12px}
.hero-img{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 48px -24px rgba(74,54,32,.35);aspect-ratio:4/3}
.hero-img img{width:100%;height:100%;object-fit:cover}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:40px 0 0}
.stat{background:var(--card);padding:20px 24px}
.stat b{display:block;font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat span{font-size:12.5px;color:var(--ink-3)}

/* 三步机制 */
.mech{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mech-card{padding:26px 24px;position:relative}
.mech-card .no{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.1em;margin-bottom:12px;display:block}
.mech-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.mech-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:14px}
.mech-fig{display:flex;align-items:baseline;gap:6px;font-weight:800;font-size:26px;font-variant-numeric:tabular-nums}
.mech-fig small{font-size:12px;font-weight:600;color:var(--ink-3)}
.m-note{font-size:11.5px;color:var(--ink-3);margin-top:10px;line-height:1.6}

/* 素材卡网格 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mcard{overflow:hidden;transition:.18s;cursor:pointer;display:block}
.mcard:hover{transform:translateY(-3px);box-shadow:0 14px 30px -14px rgba(74,54,32,.28)}
.mcard .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--paper,#EFE8DB)}
.mcard .thumb img{width:100%;height:100%;object-fit:cover;transition:.3s}
.mcard:hover .thumb img{transform:scale(1.04)}
.mcard .body{padding:14px 16px 16px}
.mcard h4{font-size:14px;font-weight:600;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mcard .row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.mcard .price{font-weight:700;color:var(--bean);font-size:13.5px;font-variant-numeric:tabular-nums}

/* 会员定价 */
.vip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.vip-card{padding:28px 26px;position:relative;display:flex;flex-direction:column}
.vip-card.hot{border:2px solid var(--cta);box-shadow:0 18px 40px -18px rgba(232,138,63,.4)}
.vip-card .best{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--cta);color:#3A2410;font-size:11.5px;font-weight:700;padding:3px 14px;border-radius:20px}
.vip-card h3{font-size:17px;font-weight:700}
.vip-card .p{margin:10px 0 4px}
.vip-card .p b{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums}
.vip-card .p span{font-size:13px;color:var(--ink-3)}
.vip-card .yr{font-size:12.5px;color:var(--ink-3);margin-bottom:16px}
.vip-card ul{list-style:none;display:grid;gap:9px;margin-bottom:22px;font-size:13.5px;color:var(--ink-2)}
.vip-card li{display:flex;gap:8px;align-items:flex-start}
.vip-card li::before{content:"✓";color:var(--cta-deep);font-weight:700;flex:none}
.vip-card .btn{margin-top:auto}
.vip-card.current{border:2px solid var(--cash)}
.vip-card .best.now{background:var(--cash);color:#fff}

/* 免费引导带 */
.freeband{display:grid;grid-template-columns:1.08fr 1fr;gap:44px;align-items:center;padding:36px 40px;background:linear-gradient(122deg,#FFFBF5 0%,#F4EEE2 100%);border:1px solid var(--line);border-radius:20px}
.freeband h3{font-size:21px;font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.freeband p{font-size:13.5px;color:var(--ink-2);line-height:1.85;margin-bottom:20px;max-width:440px}
.freeband p b{color:var(--ink)}
.freeband .fb-act{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.freeband .fb-act .link{font-size:13px;color:var(--ink-3);border-bottom:1px solid var(--line-2);padding-bottom:1px}
.freeband .fb-act .link:hover{color:var(--ink)}
.freeband .fb-keys{display:grid;gap:10px}
.freeband .fb-k{display:flex;align-items:baseline;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.freeband .fb-k b{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;flex:none}
.freeband .fb-k span{font-size:12.5px;color:var(--ink-3)}

/* 会员对比表 */
.plan-tbl{table-layout:fixed;width:100%;font-size:13px}
.plan-tbl th:first-child,.plan-tbl td:first-child{width:24%}
.plan-tbl th:not(:first-child),.plan-tbl td:not(:first-child){width:19%}
.plan-tbl th,.plan-tbl td{white-space:nowrap;padding-left:8px;padding-right:8px}
.plan-tbl th.now,.plan-tbl td.now{background:var(--bean-soft);color:var(--bean);font-weight:700}
.plan-tbl th.now{border-bottom-color:#F2CDBB}
.plan-tbl th.now span{display:block;font-size:10.5px;font-weight:600;color:var(--ink-3);margin-top:2px}
.plan-tbl td.tick{color:var(--cash);font-weight:700}
.plan-tbl td.dash{color:var(--ink-3)}
.plan-tbl .btn{padding:7px 16px;font-size:12.5px;border-radius:9px}
.plan-tbl tbody tr:last-child td{padding-top:16px}

/* 列表页免费提示条 */
.free-tip{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-2);background:var(--tag-soft);border:1px solid #DCE6CE;border-radius:12px;padding:10px 16px;margin-bottom:16px}
.free-tip a{margin-left:auto;color:var(--cta-deep);font-weight:600;flex:none}

/* 创作者招募 */
.recruit{background:var(--ink);border-radius:20px;color:#F5EDE2;padding:48px;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center;margin-top:56px}
.recruit h2{font-size:26px;font-weight:700;margin-bottom:12px;color:#fff}
.recruit p{color:#C8B79E;font-size:14.5px;margin-bottom:22px}
.recruit .figs{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.recruit .fig{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px 20px}
.recruit .fig b{display:block;font-size:22px;color:var(--cta);font-variant-numeric:tabular-nums}
.recruit .fig span{font-size:12px;color:#C8B79E}

/* ===== 列表页 ===== */
.list-layout{display:grid;grid-template-columns:236px 1fr;gap:28px;align-items:start;margin-top:24px}
.filter{padding:22px;position:sticky;top:84px}
.f-group{margin-bottom:22px}
.f-group:last-child{margin-bottom:0}
.f-group h5{font-size:12.5px;font-weight:700;margin-bottom:10px;letter-spacing:.03em}
.f-item{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);padding:5px 0;cursor:pointer}
.f-item input{accent-color:var(--cta-deep);width:15px;height:15px}
.f-item:hover{color:var(--ink)}
.sortbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:14px;flex-wrap:wrap}
.tabs{display:flex;gap:4px;background:#EFE7D8;border-radius:12px;padding:4px}
.tabs a{padding:7px 16px;border-radius:9px;font-size:13.5px;color:var(--ink-2)}
.tabs a.on{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(74,54,32,.1)}
.pager{display:flex;gap:6px;justify-content:center;margin-top:36px}
.pager a{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line)}
.pager a.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ===== 详情页 ===== */
.detail{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start;margin-top:16px}
.d-view{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff}
.d-view img{width:100%}
.d-tools{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3)}
.buy{padding:24px;position:sticky;top:84px}
.author{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.author .avatar{width:42px;height:42px}
.author b{display:block;font-size:14px}
.author span{font-size:12.5px;color:var(--ink-3)}
.buy h1{font-size:20px;font-weight:700;margin-bottom:6px}
.buy .desc{font-size:13.5px;color:var(--ink-2);margin-bottom:18px}
.price-row{display:flex;align-items:baseline;gap:10px;margin-bottom:18px}
.price-row b{font-size:30px;font-weight:800;color:var(--bean);font-variant-numeric:tabular-nums}
.price-row span{font-size:13px;color:var(--ink-3)}
.buy-btns{display:grid;gap:10px;margin-bottom:16px}
.cap-tip{display:flex;align-items:center;gap:8px;background:var(--bean-soft);border:1px solid #F2CDBB;border-radius:10px;padding:9px 13px;font-size:12px;color:var(--bean);margin-bottom:16px}
.spec{border-top:1px solid var(--line);padding-top:14px;display:grid;gap:8px;font-size:12.5px}
.spec div{display:flex;justify-content:space-between}
.spec span{color:var(--ink-3)}
.spec b{font-weight:600;color:var(--ink-2)}
.lic-note{margin-top:14px;padding:12px 14px;background:var(--cash-soft);border-radius:10px;font-size:12px;color:var(--cash);line-height:1.65}

/* ===== 上传页 ===== */
.up-layout{display:grid;grid-template-columns:1fr 356px;gap:28px;align-items:start;margin-top:24px}
.steps3{display:flex;align-items:center;gap:0;margin:26px 0 22px}
.st{display:flex;align-items:center;gap:10px;font-size:13.5px}
.st .dot{width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:none}
.st span{font-weight:600}
.st-line{flex:1;height:2px;background:var(--line-2);margin:0 14px;min-width:40px}
.st.dim .dot{background:#D9CBB2;color:#8C7C6A}
.st.dim span{color:var(--ink-3);font-weight:500}
.drop{border:2px dashed var(--line-2);border-radius:var(--radius);background:#fff;padding:52px 20px;text-align:center;cursor:pointer;transition:.15s}
.drop:hover{border-color:var(--cta-deep);background:#FFFDF9}
.drop .ic{width:56px;height:56px;border-radius:16px;background:var(--bean-soft);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 14px}
.drop b{display:block;font-size:15px;margin-bottom:5px}
.drop p{font-size:12.5px;color:var(--ink-3)}
.form{padding:26px;margin-top:22px}
.f-row{margin-bottom:20px}
.f-row label{display:flex;justify-content:space-between;font-size:13.5px;font-weight:600;margin-bottom:8px}
.f-row label span{font-weight:500;color:var(--ink-3);font-size:12px}
.f-row input[type=text],.f-row textarea,.f-row select{width:100%;border:1px solid var(--line-2);border-radius:10px;padding:11px 14px;font-family:inherit;font-size:14px;background:#fff;color:var(--ink);outline:none;transition:.15s}
.f-row input:focus,.f-row textarea:focus{border-color:var(--cta-deep)}
.f-row textarea{resize:vertical;min-height:88px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:7px 15px;border-radius:20px;border:1px solid var(--line-2);font-size:13px;color:var(--ink-2);cursor:pointer;background:#fff}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.side-card{padding:22px;margin-bottom:16px}
.side-card h4{font-size:14px;font-weight:700;margin-bottom:14px}
.earn-row{display:flex;justify-content:space-between;align-items:baseline;padding:8px 0;font-size:13px;color:var(--ink-2)}
.earn-row b{font-size:15px;color:var(--cash);font-variant-numeric:tabular-nums}
.earn-total{border-top:1px dashed var(--line-2);margin-top:8px;padding-top:12px;display:flex;justify-content:space-between;align-items:baseline}
.earn-total span{font-size:13px;font-weight:600}
.earn-total b{font-size:24px;color:var(--cash);font-variant-numeric:tabular-nums}
.rules{list-style:none;display:grid;gap:10px;font-size:12.5px;color:var(--ink-2)}
.rules li{display:flex;gap:9px;align-items:flex-start;line-height:1.6}
.rules li::before{content:"·";color:var(--cta-deep);font-weight:900;flex:none}

/* ===== 会员中心 ===== */
.mem{display:grid;grid-template-columns:236px minmax(0,1fr);gap:28px;align-items:start;margin-top:24px}
.side-nav{padding:14px;position:sticky;top:84px}
.side-nav a{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);margin-bottom:2px}
.side-nav a:hover{background:var(--bg)}
.side-nav a.on{background:var(--ink);color:#fff;font-weight:600}
.mem-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.wallet{padding:24px;color:#fff;position:relative;overflow:hidden}
.wallet.bean-w{background:linear-gradient(120deg,#B05A38,#D98B5C)}
.wallet.cash-w{background:linear-gradient(120deg,#2F5B45,#4A8C69)}
.wallet h4{font-size:13px;opacity:.85;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.wallet h4 .tag{background:rgba(255,255,255,.2);color:#fff}
.wallet .amt{font-size:38px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em;margin:10px 0 4px}
.wallet .amt small{font-size:15px;font-weight:600;opacity:.8}
.wallet .sub{font-size:12.5px;opacity:.82;margin-bottom:16px}
.cap-bar{height:7px;border-radius:6px;background:rgba(255,255,255,.25);overflow:hidden;margin-bottom:7px}
.cap-bar i{display:block;height:100%;background:#fff;border-radius:6px}
.cap-txt{font-size:11.5px;opacity:.85;display:flex;justify-content:space-between}
.panel{padding:24px;margin-bottom:18px}
.panel h4{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center}
.sign-row{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.sign-day{border:1px solid var(--line);border-radius:10px;padding:10px 4px;text-align:center;font-size:11px;color:var(--ink-3)}
.sign-day b{display:block;font-size:14px;color:var(--bean);margin-top:2px}
.sign-day.done{background:var(--bean-soft);border-color:#F2CDBB}
.sign-day.today{border:2px solid var(--cta-deep);background:#FFFDF9}
.bar-chart{display:flex;align-items:flex-end;gap:12px;height:130px;padding-top:8px}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.bar i{width:100%;max-width:34px;border-radius:7px 7px 3px 3px;background:linear-gradient(180deg,var(--cta),#E8B183)}
.bar.hi i{background:linear-gradient(180deg,var(--cash),#8CBBA3)}
.bar span{font-size:11px;color:var(--ink-3)}
.bar em{font-style:normal;font-size:10.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{text-align:left;font-size:12px;color:var(--ink-3);font-weight:600;padding:9px 10px;border-bottom:1.5px solid var(--line)}
.tbl td{padding:12px 10px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.tbl tr:last-child td{border-bottom:none}
.tbl .r{text-align:right;font-variant-numeric:tabular-nums}
.withdraw{display:flex;justify-content:space-between;align-items:center;gap:16px;background:var(--cash-soft);border:1px solid #CFE3D8;border-radius:12px;padding:14px 18px;margin-top:16px}
.withdraw p{font-size:12.5px;color:var(--cash)}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;padding-top:36px}
  .hero h1{font-size:32px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .mech,.vip{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .recruit{grid-template-columns:1fr;padding:32px}
  .freeband{grid-template-columns:1fr;gap:26px;padding:26px}
  .plan-tbl{min-width:640px}
  .list-layout,.detail,.up-layout,.mem{grid-template-columns:minmax(0,1fr)}
  .filter,.buy,.side-nav{position:static}
  .ft-in{grid-template-columns:1fr 1fr}
  .mem-grid{grid-template-columns:1fr}
  .nav{display:none}
  /* 窄屏：侧导航转为横向胶囊条 */
  .side-nav{display:flex;overflow-x:auto;gap:4px;padding:10px;-webkit-overflow-scrolling:touch;min-width:0}
  .side-nav a{white-space:nowrap;margin-bottom:0;padding:9px 14px;font-size:13px;flex:none}
  .panel{overflow-x:auto}
  .tbl{min-width:520px}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr}
  .ft-in{grid-template-columns:1fr}
  .prototype-notice span+span{border-left:0;padding-left:0}
}