:root{
  --bg:#f7f6f2;
  --surface:#fff;
  --surface-2:#fbfaf7;
  --ink:#15181a;
  --ink-2:#565c61;
  --ink-3:#8f9499;
  --line:#e6e4dd;
  --line-2:#d6d3ca;
  --brand:#1f6b52;
  --brand-deep:#16513d;
  --brand-soft:#eaf2ee;
  --ok:#1c7a4f;
  --ok-soft:#e8f5ee;
  --bad:#b23a31;
  --bad-soft:#fceceb;
  --r:16px;
  --r-sm:11px;
  --ease:cubic-bezier(.22,1,.36,1);
  --shadow:0 1px 2px rgba(20,28,24,.05);
  --shadow-lift:0 2px 4px rgba(20,28,24,.06),0 16px 32px -22px rgba(20,28,24,.28);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;overflow-x:hidden;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--brand);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.nav{position:sticky;top:0;z-index:30;background:rgba(247,246,242,.86);backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--line)}
.nav-in{max-width:1040px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);font-size:16px;font-weight:600;letter-spacing:.2px;white-space:nowrap}
.logo{width:26px;height:26px;border-radius:7px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:600;letter-spacing:0;flex:none}
.nav-links{margin-left:auto;display:flex;gap:2px}
.nav-links a{padding:7px 13px;border-radius:9px;color:var(--ink-2);font-size:14px;transition:background .2s var(--ease),color .2s var(--ease)}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-links a.on{background:var(--brand);color:#fff}

/* ---------- 首页主视觉 ---------- */
.hero{display:grid;grid-template-columns:1.55fr .85fr;gap:40px;align-items:center;padding:64px 0 40px}
.eyebrow{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none}
.hero h1{margin:16px 0 14px;font-size:46px;line-height:1.14;letter-spacing:-1.2px;font-weight:600;max-width:560px;
  background:linear-gradient(92deg,#121514 0%,#5f665f 100%);-webkit-background-clip:text;background-clip:text;color:transparent;overflow-wrap:anywhere}
.lede{margin:0;max-width:520px;color:var(--ink-2);font-size:15.5px;line-height:1.8}
.cta{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}
.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow-lift)}
.hc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.hc-lab{font-size:11px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase}
.hc-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);opacity:.55}
.hc-num{font-size:34px;font-weight:600;line-height:1.1;letter-spacing:-.6px;font-variant-numeric:tabular-nums;color:var(--ink)}
.hc-num span{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:8px;letter-spacing:0}
.hc-bar{height:4px;border-radius:3px;background:#edebe4;margin:14px 0 10px;overflow:hidden}
.hc-bar i{display:block;height:100%;background:var(--brand);border-radius:3px;transition:width .5s var(--ease)}
.hc-foot{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--ink-3)}
.hc-foot a{color:var(--brand);font-weight:500}
.hc-empty{color:var(--ink-2);font-size:14px;line-height:1.9;padding:8px 0 16px}

/* ---------- 统计条 ---------- */
.statbar{display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);margin-bottom:12px}
.sb{padding:20px 24px;border-left:1px solid var(--line)}
.sb:first-child{border-left:0}
.sb b{display:block;font-size:24px;font-weight:600;letter-spacing:-.4px;line-height:1.2;font-variant-numeric:tabular-nums}
.sb span{display:block;margin-top:4px;font-size:12.5px;color:var(--ink-3)}

/* ---------- 区块标题 ---------- */
.section-head{display:flex;align-items:baseline;gap:12px;margin:44px 0 16px}
.section-head h2{margin:0;font-size:19px;font-weight:600;letter-spacing:-.2px}
.section-head span{font-size:13px;color:var(--ink-3)}

/* ---------- 模块卡 ---------- */
.modules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.module{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:20px;color:var(--ink);box-shadow:var(--shadow);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.module:hover{transform:translateY(-3px);border-color:#b9d2c7;box-shadow:var(--shadow-lift)}
.m-top{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.m-no{font-size:11px;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);border-radius:6px;padding:2px 6px;font-variant-numeric:tabular-nums}
.m-name{font-size:15px;font-weight:600}
.m-num{font-size:28px;font-weight:600;letter-spacing:-.8px;line-height:1.1;font-variant-numeric:tabular-nums}
.m-num span{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:4px;letter-spacing:0}
.m-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;font-size:12.5px;color:var(--ink-3)}
.arrow{color:var(--ink-3);font-size:15px;transition:color .3s var(--ease),transform .3s var(--ease)}
.module:hover .arrow,.wide-row:hover .arrow,.paper-row:hover .arrow{color:var(--brand);transform:translateX(3px)}

.wide-row{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:20px 24px;color:var(--ink);box-shadow:var(--shadow);transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
.wide-row:hover{border-color:#b9d2c7;box-shadow:var(--shadow-lift)}
.wr-t{font-size:15px;font-weight:600}
.wr-m{margin-top:3px;font-size:13px;color:var(--ink-3)}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:38px;padding:0 15px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);color:var(--ink);font-family:inherit;font-size:14px;font-weight:500;
  cursor:pointer;white-space:nowrap;transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.btn:hover{border-color:var(--brand);color:var(--brand)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,107,82,.18)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}
.btn.sm{height:32px;padding:0 11px;font-size:13px;border-radius:9px}
.btn.lg{height:46px;padding:0 22px;font-size:15px;font-weight:600;border-radius:12px}
.btn.ghost{border-color:transparent;background:transparent;color:var(--ink-2)}
.btn.ghost:hover{background:var(--brand-soft);color:var(--brand);border-color:transparent}
.btn.block{width:100%}

/* ---------- 卷列表页 ---------- */
.mod-head{padding:40px 0 8px}
.back{display:inline-block;font-size:13px;color:var(--ink-3);margin-bottom:14px;transition:color .2s var(--ease)}
.back:hover{color:var(--brand)}
.mod-head h1{margin:0 0 8px;font-size:34px;font-weight:600;letter-spacing:-.8px;line-height:1.2}
.mod-head .sub{color:var(--ink-3);font-size:13.5px;font-variant-numeric:tabular-nums}

.toolbar{display:flex;gap:10px;align-items:center;margin:26px 0 18px;flex-wrap:wrap}
.search-wrap{position:relative;flex:1;min-width:220px;display:flex;align-items:center}
.search-wrap .si{position:absolute;left:14px;font-size:15px;color:var(--ink-3);pointer-events:none}
.search{width:100%;height:42px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);padding:0 16px 0 38px;
  font-size:14.5px;color:var(--ink);outline:none;font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,107,82,.12)}
.select{height:42px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);padding:0 12px;font-size:14px;color:var(--ink);font-family:inherit;cursor:pointer}
.select:focus{outline:none;border-color:var(--brand)}
.toolbar .btn{height:42px}

.list{display:flex;flex-direction:column;gap:8px;margin-bottom:56px}
.paper-row{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:15px 18px;color:var(--ink);transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease)}
.paper-row:hover{border-color:#b9d2c7;box-shadow:var(--shadow)}
.p-no{flex:none;width:30px;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.p-main{flex:1;min-width:0}
.p-main .t{font-size:15px;line-height:1.5;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.p-main .m{display:flex;align-items:center;gap:10px;margin-top:5px;font-size:12.5px;color:var(--ink-3);flex-wrap:wrap}
.pill{display:inline-block;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:1px 9px;font-size:11.5px;font-weight:500;font-variant-numeric:tabular-nums}
.empty{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:56px 20px;text-align:center;color:var(--ink-2);font-size:14px}
.empty span{display:inline-block;margin-top:6px;color:var(--ink-3);font-size:13px}

/* ---------- 做题页 ---------- */
.paper-head{padding:32px 0 0}
.paper-head h1{margin:8px 0 8px;font-size:21px;line-height:1.5;font-weight:600;letter-spacing:-.2px;max-width:820px}
.paper-head .sub{color:var(--ink-3);font-size:13px;font-variant-numeric:tabular-nums}
.progress{height:3px;border-radius:2px;background:#eae7df;margin:18px 0 0;overflow:hidden}
.progress i{display:block;height:100%;background:var(--brand);border-radius:2px;transition:width .45s var(--ease)}

.bar{position:sticky;top:53px;z-index:20;background:rgba(247,246,242,.92);backdrop-filter:blur(12px);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px 0;margin-top:16px}
.bar-in{display:flex;align-items:center;gap:10px;justify-content:space-between}
.bar-l{display:flex;align-items:center;gap:8px;min-width:0}
.bar-r{display:flex;align-items:center;gap:8px;flex:none}
.counter{font-size:13px;color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums;padding:0 2px}
.counter b{color:var(--ink);font-size:15px;font-weight:600}
.bar .select{height:32px;font-size:13px;border-radius:9px;padding:0 8px;max-width:150px}

.qcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px 22px;margin:20px 0 28px;box-shadow:var(--shadow)}
.qtag{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.qtag .no{font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:7px;padding:2px 9px}
.qtag .type{font-size:12.5px;color:var(--ink-3)}
.qid{font-size:11px;color:#b7bbc1;font-variant-numeric:tabular-nums}

.material{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:18px;
  font-size:14.5px;line-height:1.85;color:var(--ink-2);max-height:340px;overflow:auto}
.material summary{cursor:pointer;color:var(--brand);font-size:12.5px;margin-bottom:8px;list-style:none}
.material summary::-webkit-details-marker{display:none}
.material summary::after{content:" · 收起";color:var(--ink-3)}

.stem{font-size:16px;line-height:1.9;color:var(--ink)}
.stem p,.material p,.analysis p{margin:0 0 10px}
.stem p:last-child,.material p:last-child,.analysis p:last-child{margin-bottom:0}
.stem img,.material img,.analysis img,.opt img{max-width:100%;height:auto;border-radius:8px;display:block;margin:8px 0}

.opts{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.opt{display:flex;align-items:flex-start;gap:12px;width:100%;min-height:52px;padding:12px 16px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;font-family:inherit;font-size:15px;line-height:1.75;color:var(--ink);text-align:left;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease)}
.opt:hover{border-color:#b9d2c7;background:#fcfdfc}
.opt:active{transform:scale(.995)}
.opt .k{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;
  font-size:13px;font-weight:600;color:var(--ink-2);background:#fff;margin-top:1px;font-variant-numeric:tabular-nums}
.opt.sel{border-color:var(--brand);background:var(--brand-soft)}
.opt.sel .k{background:var(--brand);border-color:var(--brand);color:#fff}
.opt.ok{border-color:rgba(28,122,79,.55);background:var(--ok-soft)}
.opt.ok .k{background:var(--ok);border-color:var(--ok);color:#fff}
.opt.bad{border-color:rgba(178,58,49,.5);background:var(--bad-soft)}
.opt.bad .k{background:var(--bad);border-color:var(--bad);color:#fff}
.opt.ok::after{content:"✓";margin-left:auto;color:var(--ok);font-weight:600;flex:none}
.opt.bad::after{content:"✕";margin-left:auto;color:var(--bad);font-weight:600;flex:none}

.answer-box{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}
.answer-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.answer-head .lab{font-size:11.5px;letter-spacing:.14em;color:var(--ink-3)}
.answer-head b{font-size:22px;font-weight:600;color:var(--brand);letter-spacing:.5px}
.judge{font-size:12px;font-weight:600;border-radius:999px;padding:2px 10px}
.judge.ok{background:var(--ok-soft);color:var(--ok)}
.judge.bad{background:var(--bad-soft);color:var(--bad)}
.analysis{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.a-head{font-size:11.5px;letter-spacing:.14em;color:var(--ink-3);margin-bottom:10px}
.blank-tip{color:var(--ink-3);font-size:13.5px;padding:10px 0}

/* ---------- 页脚 ---------- */
.foot{padding:52px 0 64px;border-top:1px solid var(--line);margin-top:24px}
.f-brand{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:10px}
.foot p{margin:0 0 6px;color:var(--ink-3);font-size:12.5px;line-height:1.9}

/* ---------- 响应式 ---------- */
@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .hero h1{font-size:40px}
  .hero-card{max-width:520px}
}
@media (max-width:720px){
  .wrap{padding:0 18px}
  .nav-in{padding:12px 18px}
  .hero{padding:40px 0 28px}
  .hero h1{font-size:34px;letter-spacing:-.8px}
  .modules{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mod-head{padding:28px 0 4px}
  .mod-head h1{font-size:28px}
  .statbar{grid-template-columns:repeat(2,1fr)}
  .sb{padding:16px 18px}
  .sb:nth-child(3){border-left:0}
  .sb:nth-child(n+3){border-top:1px solid var(--line)}
  .qcard{padding:18px 18px 16px}
  .bar{top:49px}
  .bar-in{flex-wrap:wrap;row-gap:8px}
  .bar-r{margin-left:auto}
  .paper-row{padding:13px 14px;gap:12px}
  .p-no{display:none}
  .p-main .t{white-space:normal}
}
@media (max-width:430px){
  .hero h1{font-size:29px;letter-spacing:-.5px}
  .lede{font-size:14.5px}
  .cta{flex-direction:column;align-items:stretch}
  .cta .btn{width:100%}
  .modules{grid-template-columns:1fr}
  .m-num{font-size:25px}
  .mod-head h1{font-size:25px}
  .bar-l{width:100%;justify-content:space-between}
  .bar-r{width:100%;justify-content:flex-end}
  .bar .select{max-width:112px}
  .paper-head h1{font-size:18px}
  .qcard{padding:16px 15px 15px;margin:14px 0 20px}
  .opt{padding:11px 12px;gap:10px;font-size:14.5px}
  .opt .k{width:24px;height:24px;font-size:12px}
  .answer-head b{font-size:20px}
  .statbar{grid-template-columns:repeat(2,1fr)}
  .section-head{margin:32px 0 12px}
  .section-head h2{font-size:17px}
}

/* ---------- 精修 ---------- */
.btn:disabled{opacity:.42;cursor:default;pointer-events:none}
.qcard{max-width:820px;margin-left:auto;margin-right:auto}
.opts.inline{display:grid;grid-template-columns:repeat(auto-fit,minmax(86px,1fr))}
.opts.inline .opt{position:relative;justify-content:center;min-height:64px}
.opts.inline .opt .k{width:30px;height:30px;font-size:15px}
.opts.inline .opt.ok::after,.opts.inline .opt.bad::after{position:absolute;top:6px;right:8px;margin:0;font-size:12px}
.hc-sep{height:1px;background:var(--line);margin:16px 0 13px}
.hc-rec{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.hc-rec a{color:var(--brand);font-weight:500}
@media (max-width:720px){.qcard{max-width:100%}}

/* ---------- 对齐与填空 ---------- */
.paper-head{max-width:820px;margin-left:auto;margin-right:auto}
.stem p{margin-bottom:8px}
.stem img{margin:6px auto}
.blank{display:inline-block;min-width:76px;height:1.05em;border-bottom:1px solid var(--ink-3);
  margin:0 6px;vertical-align:-3px}
@media (max-width:720px){.paper-head{max-width:100%}}

/* ---------- 账号 ---------- */
.nav-links .nav-user{display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:13px;font-weight:500;transition:all .25s var(--ease)}
.nav-links .nav-user:hover{color:var(--brand);border-color:var(--brand)}
.nav-links .nav-user.on{background:var(--brand);border-color:var(--brand);color:#fff}
.auth-wrap{max-width:440px;margin:44px auto 72px}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:26px 26px 24px;box-shadow:var(--shadow)}
.auth-tabs{display:flex;gap:8px;margin-bottom:4px}
.auth-tabs button{flex:1;height:38px;border-radius:10px;border:1px solid transparent;
  background:#f2f1ec;color:var(--ink-3);font-size:14px;cursor:pointer;
  transition:all .2s var(--ease)}
.auth-tabs button.on{background:#fff;border-color:var(--line);color:var(--brand);
  font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.auth-note{font-size:12.5px;line-height:1.7;color:var(--ink-3);margin:16px 0 20px}
.fld{margin-bottom:14px}
.fld span{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:6px}
.fld input{width:100%;height:44px;padding:0 12px;border:1px solid var(--line);
  border-radius:10px;background:#fff;font-size:15px;color:var(--ink);outline:none;
  transition:border-color .2s var(--ease)}
.fld input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,107,82,.08)}
.auth-msg{min-height:18px;font-size:12.5px;color:var(--ink-3);margin:2px 0 10px}
.auth-msg.bad{color:#b4342c}
.acct-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:26px;box-shadow:var(--shadow)}
.acct-top{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.acct-av{width:48px;height:48px;border-radius:14px;background:#e7f0eb;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:600}
.acct-name{font-size:17px;font-weight:600;color:var(--ink)}
.acct-sub{font-size:12.5px;color:var(--ink-3);margin-top:4px}
.acct-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:22px}
.acct-stat{background:#f7f6f2;border-radius:12px;padding:16px 18px}
.acct-stat b{display:block;font-size:26px;font-weight:600;color:var(--ink);letter-spacing:-.02em}
.acct-stat span{font-size:12.5px;color:var(--ink-3)}
.acct-row{display:flex;gap:10px}
.acct-row .btn{flex:1;justify-content:center}
.acct-note{font-size:12.5px;color:var(--ink-3);line-height:1.75;margin-top:18px}
@media (max-width:720px){
  .nav-links a[href="#/about"]{display:none}
  .nav-links{gap:8px}
  .nav-links .nav-user{height:30px;padding:0 10px;font-size:12px}
  .auth-wrap{margin:24px auto 48px;padding:0 20px}
  .auth-card{padding:22px 18px}
  .acct-card{padding:20px 18px}
}

/* ---------- 移动端导航收敛 ---------- */
.mini-lab, .mini-user{display:none}
@media (max-width:720px){
  .nav-in{padding:11px 16px;gap:10px}
  .brand{font-size:15px;gap:7px;letter-spacing:0}
  .logo{width:24px;height:24px;border-radius:6px;font-size:13px}
  .nav-links{gap:2px}
  .nav-links a{padding:6px 9px;font-size:13px}
  .nav-links a[href="#/about"]{display:none}
  .nav-links a .full-lab{display:none}
  .nav-links a .mini-lab{display:inline}
  .nav-links .nav-user{height:30px;padding:0 11px;font-size:12.5px}
  .nav-links .nav-user .full-user{display:none}
  .nav-links .nav-user .mini-user{display:inline}
}

/* ---------- 协议页与注册同意 ---------- */
.agree{display:flex;align-items:flex-start;gap:8px;margin:2px 0 14px;font-size:13px;
  line-height:1.6;color:var(--ink-3)}
.agree input{margin:3px 0 0;width:15px;height:15px;accent-color:var(--brand);flex:none}
.agree a{color:var(--brand);text-decoration:none}
.agree a:hover{text-decoration:underline}
.foot-links{margin-top:10px}
.foot-links a{color:var(--ink-3);text-decoration:none}
.foot-links a:hover{color:var(--brand)}
.foot-links i{margin:0 8px;font-style:normal;color:var(--line)}
.doc-wrap{max-width:720px;margin:48px auto 72px}
.doc-wrap h1{font-size:26px;font-weight:600;letter-spacing:-.4px;margin:0 0 18px;color:var(--ink)}
.doc-wrap p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0 0 14px}
.doc-back{display:inline-block;margin-top:10px;font-size:14px;color:var(--brand);text-decoration:none}

/* 邮箱验证码 */
.code-row{display:flex;gap:8px;align-items:center}
.code-row input{flex:1;min-width:0}
.auth-links{font-size:13px;margin:12px 0 2px}
.auth-links a{color:var(--brand)}
.auth-msg.ok{color:var(--brand)}