/* ============================================================
   艺保链 · 极简设计系统  Minimal Design System
   设计原则：大量留白 / 克制的分割线 / 单一强调色 / 无重阴影
   ============================================================ */
:root{
  --c-bg:#ffffff;
  --c-bg-soft:#f7f8fa;
  --c-bg-tint:#f2f4f7;
  --c-line:#e8eaee;
  --c-line-2:#dfe2e8;
  --c-txt:#14161a;
  --c-txt-2:#5a6172;
  --c-txt-3:#8b93a5;
  --c-primary:#1f5eff;
  --c-primary-d:#1a4fd6;
  --c-primary-l:#eef3ff;
  --c-green:#12a150;
  --c-green-l:#e9f7ef;
  --c-orange:#e08600;
  --c-orange-l:#fdf4e6;
  --c-red:#d93f3f;
  --c-red-l:#fdeeee;
  --c-gold:#b8862b;
  --c-gold-l:#fbf5e9;
  --r-s:6px; --r-m:10px; --r-l:16px;
  --sd-s:0 1px 2px rgba(20,22,26,.04);
  --sd-m:0 6px 24px rgba(20,22,26,.06);
  --mw:1180px;
  --f-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --f-mono:"SF Mono",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--f-sans);font-size:14px;line-height:1.7;
  color:var(--c-txt);background:var(--c-bg);
  font-feature-settings:"tnum";
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block;border:0}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
table{border-collapse:collapse;width:100%}
code,pre{font-family:var(--f-mono)}

.wrap{max-width:var(--mw);margin:0 auto;padding:0 20px;width:100%}
.main{min-height:calc(100vh - 300px)}

/* ---------------- 顶部导航 ---------------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.86);
    backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--c-line)}
.hd-in{display:flex;align-items:center;height:62px;gap:26px}
.logo{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:600;letter-spacing:.3px;flex:none}
.logo img{height:30px;width:auto}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:8px;background:var(--c-txt);color:#fff;font-size:16px;font-weight:600}
.logo-txt{color:var(--c-txt)}
.logo-slogan{font-style:normal;font-size:12px;color:var(--c-txt-3);font-weight:400;
  padding-left:9px;margin-left:3px;border-left:1px solid var(--c-line-2)}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav a{padding:7px 13px;border-radius:var(--r-s);color:var(--c-txt-2);font-size:14px;transition:.15s}
.nav a:hover{background:var(--c-bg-tint);color:var(--c-txt)}
.nav a.on{color:var(--c-txt);font-weight:600;background:var(--c-bg-tint)}
.hd-right{display:flex;align-items:center;gap:12px;flex:none}
.link-plain{color:var(--c-txt-2);font-size:14px}
.link-plain:hover{color:var(--c-primary)}
.nav-toggle{display:none;font-size:19px;color:var(--c-txt-2);padding:4px 8px}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:38px;padding:0 18px;border-radius:var(--r-s);font-size:14px;font-weight:500;
  transition:.16s;white-space:nowrap;border:1px solid transparent}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff}
.btn-dark{background:var(--c-txt);color:#fff}
.btn-dark:hover{background:#000;color:#fff}
.btn-line{border-color:var(--c-line-2);color:var(--c-txt)}
.btn-line:hover{border-color:var(--c-txt-3);background:var(--c-bg-soft);color:var(--c-txt)}
.btn-soft{background:var(--c-bg-tint);color:var(--c-txt)}
.btn-soft:hover{background:#e7eaef;color:var(--c-txt)}
.btn-danger{background:var(--c-red);color:#fff}
.btn-danger:hover{background:#c23434;color:#fff}
.btn-ghost{color:var(--c-txt-2)}
.btn-ghost:hover{color:var(--c-primary);background:var(--c-primary-l)}
.btn-sm{height:31px;padding:0 12px;font-size:13px;border-radius:var(--r-s)}
.btn-lg{height:46px;padding:0 30px;font-size:15px;border-radius:var(--r-m)}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;pointer-events:none}

/* ---------------- 排版 ---------------- */
.page-head{padding:52px 0 30px;border-bottom:1px solid var(--c-line);margin-bottom:34px}
.page-head h1{font-size:30px;font-weight:600;letter-spacing:-.4px;line-height:1.35}
.page-head p{color:var(--c-txt-2);margin-top:10px;font-size:15px;max-width:680px}
.sec{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.sec-head h2{font-size:21px;font-weight:600;letter-spacing:-.2px}
.sec-head p{color:var(--c-txt-3);font-size:13px;margin-top:5px}
.muted{color:var(--c-txt-2)}
.dim{color:var(--c-txt-3);font-size:13px}
.mono{font-family:var(--f-mono);font-size:12.5px;word-break:break-all}
.center{text-align:center}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}.mt32{margin-top:32px}
.mb8{margin-bottom:8px}.mb16{margin-bottom:16px}.mb24{margin-bottom:24px}
.flex{display:flex}.fcol{flex-direction:column}.aic{align-items:center}.jcb{justify-content:space-between}
.gap8{gap:8px}.gap12{gap:12px}.gap16{gap:16px}.gap24{gap:24px}
.grow{flex:1;min-width:0}

/* ---------------- 标签 ---------------- */
.tag{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:4px;
  font-size:12px;font-weight:500;line-height:1;white-space:nowrap}
.tag-gray{background:var(--c-bg-tint);color:var(--c-txt-2)}
.tag-blue{background:var(--c-primary-l);color:var(--c-primary)}
.tag-green{background:var(--c-green-l);color:var(--c-green)}
.tag-orange{background:var(--c-orange-l);color:var(--c-orange)}
.tag-red{background:var(--c-red-l);color:var(--c-red)}
.tag-gold{background:var(--c-gold-l);color:var(--c-gold)}

/* ---------------- 表单 ---------------- */
.form-row{margin-bottom:19px}
.form-row>label,.lb{display:block;font-size:13.5px;font-weight:500;color:var(--c-txt);margin-bottom:8px}
.lb .req{color:var(--c-red);margin-left:3px}
.lb .hint{font-weight:400;color:var(--c-txt-3);font-size:12.5px;margin-left:6px}
.inp,.sel,.tarea{
  width:100%;height:42px;padding:0 13px;border:1px solid var(--c-line-2);
  border-radius:var(--r-s);background:#fff;transition:.15s;outline:none;font-size:14px}
.tarea{height:auto;min-height:104px;padding:11px 13px;line-height:1.7;resize:vertical}
.inp:focus,.sel:focus,.tarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,94,255,.09)}
.inp::placeholder,.tarea::placeholder{color:#b3b9c7}
.sel{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b93a5' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 11px center;background-size:15px;padding-right:34px}
.form-tip{font-size:12.5px;color:var(--c-txt-3);margin-top:7px;line-height:1.6}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.form-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 20px}
.row-inline{display:flex;gap:10px;align-items:center}
.check{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--c-txt-2);cursor:pointer;line-height:1.7}
.check input{width:16px;height:16px;margin:3px 0 0;flex:none;accent-color:var(--c-primary);cursor:pointer}
.radio-group{display:flex;gap:10px;flex-wrap:wrap}
.radio-card{position:relative;flex:1;min-width:150px;border:1px solid var(--c-line-2);border-radius:var(--r-m);
  padding:14px 16px;cursor:pointer;transition:.16s;background:#fff}
.radio-card:hover{border-color:var(--c-txt-3)}
.radio-card input{position:absolute;opacity:0;pointer-events:none}
.radio-card .rc-t{font-weight:600;font-size:14px;display:flex;align-items:center;gap:7px}
.radio-card .rc-d{font-size:12.5px;color:var(--c-txt-3);margin-top:4px;line-height:1.6}
.radio-card.sel{border-color:var(--c-primary);background:var(--c-primary-l)}
.radio-card.sel .rc-t{color:var(--c-primary)}

/* 验证码行 */
.cap-row{display:flex;gap:10px}
.cap-row .inp{flex:1}
.cap-img{height:42px;width:132px;border-radius:var(--r-s);border:1px solid var(--c-line-2);
  cursor:pointer;object-fit:cover;flex:none;background:var(--c-bg-tint)}
.btn-sms{height:42px;padding:0 14px;border:1px solid var(--c-line-2);border-radius:var(--r-s);
  font-size:13px;color:var(--c-txt-2);white-space:nowrap;flex:none;transition:.15s;background:#fff}
.btn-sms:hover:not(:disabled){border-color:var(--c-primary);color:var(--c-primary)}
.btn-sms:disabled{color:var(--c-txt-3);cursor:not-allowed;opacity:.7}

/* 腾讯滑块容器 */
.tcaptcha-box{min-height:44px}

/* ---------------- 卡片 ---------------- */
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);padding:24px}
.card-pad0{padding:0;overflow:hidden}
.card-head{padding:17px 22px;border-bottom:1px solid var(--c-line);display:flex;
  align-items:center;justify-content:space-between;gap:14px}
.card-head h3{font-size:15px;font-weight:600}
.card-body{padding:22px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}

/* ---------------- 作品卡 ---------------- */
.work-card{border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;
  background:#fff;transition:.2s;display:flex;flex-direction:column}
.work-card:hover{border-color:var(--c-line-2);box-shadow:var(--sd-m);transform:translateY(-2px)}
.wc-pic{position:relative;aspect-ratio:4/3;background:var(--c-bg-tint);overflow:hidden;cursor:zoom-in}
.wc-pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.work-card:hover .wc-pic img{transform:scale(1.035)}
.wc-badge{position:absolute;left:10px;top:10px;display:flex;gap:5px}
.wc-body{padding:14px 15px 16px;flex:1;display:flex;flex-direction:column;gap:7px}
.wc-title{font-size:14.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wc-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:12.5px;color:var(--c-txt-3);margin-top:auto;padding-top:4px}

/* ---------------- 表格 ---------------- */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl{font-size:13.5px;min-width:100%}
.tbl th{text-align:left;font-weight:500;color:var(--c-txt-2);font-size:12.5px;
  padding:11px 14px;border-bottom:1px solid var(--c-line);background:var(--c-bg-soft);white-space:nowrap}
.tbl td{padding:13px 14px;border-bottom:1px solid var(--c-line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:var(--c-bg-soft)}
.tbl .t-nowrap{white-space:nowrap}
.tbl .t-act{white-space:nowrap}
.tbl .t-act a,.tbl .t-act button{color:var(--c-primary);font-size:13px;margin-right:12px}
.tbl .t-act a:last-child,.tbl .t-act button:last-child{margin-right:0}
.tbl .t-act .del{color:var(--c-red)}
.tbl-thumb{width:56px;height:56px;border-radius:var(--r-s);object-fit:cover;
  background:var(--c-bg-tint);cursor:zoom-in;border:1px solid var(--c-line)}
.tbl-thumb-empty{display:flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:var(--r-s);background:var(--c-bg-tint);
  color:var(--c-txt-3);font-size:11px;text-align:center;line-height:1.3;border:1px solid var(--c-line)}

/* ---------------- 空状态 ---------------- */
.empty{padding:70px 20px;text-align:center;color:var(--c-txt-3)}
.empty svg{width:56px;height:56px;margin-bottom:16px;opacity:.34;stroke-width:1.2}
.empty p{font-size:14px;margin-bottom:6px;color:var(--c-txt-2)}
.empty span{font-size:13px}

/* ---------------- 分页 ---------------- */
.pager{display:flex;align-items:center;justify-content:center;gap:5px;padding:34px 0 6px;flex-wrap:wrap}
.pager a{min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 11px;border:1px solid var(--c-line-2);border-radius:var(--r-s);
  font-size:13px;color:var(--c-txt-2);transition:.15s}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pager a.active{background:var(--c-txt);border-color:var(--c-txt);color:#fff;font-weight:600}
.pager .pg-dot{color:var(--c-txt-3);padding:0 2px}
.pager .pg-info{font-size:12.5px;color:var(--c-txt-3);margin-left:10px}

/* ---------------- 提示条 ---------------- */
.flash{margin-top:18px;padding:13px 17px;border-radius:var(--r-s);font-size:13.5px;
  background:var(--c-primary-l);color:var(--c-primary-d);border:1px solid rgba(31,94,255,.14)}
.alert{padding:13px 17px;border-radius:var(--r-s);font-size:13.5px;line-height:1.75;
  border:1px solid var(--c-line);background:var(--c-bg-soft);color:var(--c-txt-2)}
.alert-info{background:var(--c-primary-l);border-color:rgba(31,94,255,.14);color:var(--c-primary-d)}
.alert-warn{background:var(--c-orange-l);border-color:rgba(224,134,0,.16);color:#9a5c00}
.alert-danger{background:var(--c-red-l);border-color:rgba(217,63,63,.16);color:#a92c2c}
.alert-ok{background:var(--c-green-l);border-color:rgba(18,161,80,.16);color:#0b7a3b}
.alert a{text-decoration:underline;text-underline-offset:2px}

/* ---------------- 图片预览弹层 ---------------- */
.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:30px}
.modal[hidden]{display:none}
.modal-mask{position:absolute;inset:0;background:rgba(12,14,18,.82);backdrop-filter:blur(4px)}
.modal-body{position:relative;max-width:min(1200px,94vw);max-height:92vh;display:flex;
  flex-direction:column;align-items:center;gap:12px;z-index:1}
.modal-body img{max-width:100%;max-height:80vh;object-fit:contain;border-radius:var(--r-m);
  background:#fff;box-shadow:0 24px 70px rgba(0,0,0,.4)}
.modal-body figcaption{color:#fff;font-size:13.5px;text-align:center;opacity:.9;max-width:78vw}
.modal-close{position:absolute;top:-44px;right:0;width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,.14);color:#fff;font-size:21px;line-height:1;
  display:flex;align-items:center;justify-content:center}
.modal-close:hover{background:rgba(255,255,255,.26)}

/* ---------------- 页脚 ---------------- */
.ft{border-top:1px solid var(--c-line);margin-top:60px;padding:34px 0 40px;background:var(--c-bg-soft)}
.ft-in{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--c-txt-3)}
.ft-left a,.ft-right a{color:var(--c-txt-2)}
.ft-left a:hover,.ft-right a:hover{color:var(--c-primary)}
.ft-right{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.ft-org{margin-top:10px;font-size:12.5px;color:var(--c-txt-3);line-height:1.9}

/* ---------------- 侧栏布局（用户中心/后台） ---------------- */
.layout{display:flex;gap:30px;align-items:flex-start;padding:32px 0 60px}
.side{width:212px;flex:none;position:sticky;top:86px}
.side-group{margin-bottom:24px}
.side-title{font-size:11.5px;color:var(--c-txt-3);letter-spacing:.6px;text-transform:uppercase;
  padding:0 12px;margin-bottom:9px}
.side a{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:var(--r-s);
  color:var(--c-txt-2);font-size:13.5px;transition:.14s;margin-bottom:1px}
.side a:hover{background:var(--c-bg-tint);color:var(--c-txt)}
.side a.on{background:var(--c-txt);color:#fff;font-weight:500}
.side a .cnt{margin-left:auto;font-size:11.5px;background:var(--c-red);color:#fff;
  border-radius:9px;padding:1px 6px;line-height:1.5}
.side a.on .cnt{background:rgba(255,255,255,.24)}
.content{flex:1;min-width:0}

/* ---------------- 统计卡 ---------------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}
.stat{border:1px solid var(--c-line);border-radius:var(--r-m);padding:18px 20px;background:#fff}
.stat .s-n{font-size:26px;font-weight:600;letter-spacing:-.6px;line-height:1.25;
  font-variant-numeric:tabular-nums}
.stat .s-l{font-size:12.5px;color:var(--c-txt-3);margin-top:3px}

/* ---------------- 步骤 ---------------- */
.steps{display:flex;gap:0;margin-bottom:30px;counter-reset:st}
.steps div{flex:1;position:relative;padding-top:30px;font-size:13px;color:var(--c-txt-3)}
.steps div::before{counter-increment:st;content:counter(st);position:absolute;top:0;left:0;
  width:22px;height:22px;border-radius:50%;background:var(--c-bg-tint);color:var(--c-txt-3);
  font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:600}
.steps div::after{content:"";position:absolute;top:11px;left:26px;right:6px;height:1px;background:var(--c-line-2)}
.steps div:last-child::after{display:none}
.steps div.on{color:var(--c-txt);font-weight:600}
.steps div.on::before{background:var(--c-txt);color:#fff}

/* ---------------- 描述列表 ---------------- */
.dl{font-size:13.5px}
.dl>div{display:flex;gap:16px;padding:11px 0;border-bottom:1px solid var(--c-line)}
.dl>div:last-child{border-bottom:0}
.dl dt{width:126px;flex:none;color:var(--c-txt-3);text-align:right}
.dl dd{margin:0;flex:1;color:var(--c-txt);word-break:break-word}

/* ---------------- 上传区 ---------------- */
.drop{border:1.5px dashed var(--c-line-2);border-radius:var(--r-m);padding:26px 20px;text-align:center;
  cursor:pointer;transition:.16s;background:var(--c-bg-soft)}
.drop:hover,.drop.over{border-color:var(--c-primary);background:var(--c-primary-l)}
.drop .d-icon{font-size:24px;color:var(--c-txt-3);margin-bottom:6px}
.drop .d-txt{font-size:13.5px;color:var(--c-txt-2)}
.drop .d-txt b{color:var(--c-primary);font-weight:500}
.upload-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:12px;margin-top:14px}
.up-item{position:relative;border:1px solid var(--c-line);border-radius:var(--r-s);overflow:hidden;background:#fff}
.up-item .u-pic{aspect-ratio:1;background:var(--c-bg-tint);cursor:zoom-in}
.up-item .u-pic img{width:100%;height:100%;object-fit:cover}
.up-item .u-file{padding:14px 10px;text-align:center;font-size:11.5px;color:var(--c-txt-2);word-break:break-all}
.up-item .u-name{padding:6px 8px;font-size:11.5px;color:var(--c-txt-2);white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;border-top:1px solid var(--c-line)}
.up-item .u-del{position:absolute;right:5px;top:5px;width:20px;height:20px;border-radius:50%;
  background:rgba(20,22,26,.6);color:#fff;font-size:13px;line-height:1;display:flex;
  align-items:center;justify-content:center}
.up-item .u-del:hover{background:var(--c-red)}
.up-item .u-cover{position:absolute;left:5px;top:5px;background:var(--c-primary);color:#fff;
  font-size:10.5px;padding:1px 6px;border-radius:3px;line-height:1.6}
.up-item .u-setcover{position:absolute;left:0;right:0;bottom:0;background:rgba(20,22,26,.72);
  color:#fff;font-size:11px;padding:3px;opacity:0;transition:.16s;text-align:center}
.up-item:hover .u-setcover{opacity:1}

/* ---------------- 会员套餐 ---------------- */
.pk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:20px}
.pk{border:1px solid var(--c-line);border-radius:var(--r-l);padding:28px 24px;background:#fff;
  display:flex;flex-direction:column;position:relative;transition:.2s}
.pk:hover{border-color:var(--c-line-2);box-shadow:var(--sd-m)}
.pk.hot{border-color:var(--c-txt);box-shadow:0 8px 30px rgba(20,22,26,.09)}
.pk-badge{position:absolute;right:20px;top:-10px;background:var(--c-txt);color:#fff;
  font-size:11.5px;padding:3px 10px;border-radius:20px;font-weight:500}
.pk-name{font-size:16px;font-weight:600}
.pk-sub{font-size:12.5px;color:var(--c-txt-3);margin-top:3px}
.pk-price{margin:18px 0 4px;display:flex;align-items:baseline;gap:5px}
.pk-price .cur{font-size:15px;font-weight:600}
.pk-price .num{font-size:34px;font-weight:600;letter-spacing:-1.2px;line-height:1;font-variant-numeric:tabular-nums}
.pk-price .unit{font-size:12.5px;color:var(--c-txt-3)}
.pk-origin{font-size:12.5px;color:var(--c-txt-3);text-decoration:line-through}
.pk-benefits{margin:20px 0 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.pk-benefits li{font-size:13px;color:var(--c-txt-2);display:flex;gap:8px;line-height:1.65}
.pk-benefits li::before{content:"✓";color:var(--c-green);font-weight:600;flex:none}

/* ---------------- 证书 ---------------- */
.cert{background:#fff;border:1px solid var(--c-line-2);border-radius:var(--r-m);
  padding:34px 36px;position:relative;overflow:hidden}
.cert::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-txt)}
.cert-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  padding-bottom:18px;border-bottom:1px solid var(--c-line);margin-bottom:20px}
.cert-head h2{font-size:19px;font-weight:600;letter-spacing:.5px}
.cert-no{font-family:var(--f-mono);font-size:13px;color:var(--c-txt-2)}
.cert-seal{width:74px;height:74px;border-radius:50%;border:2px solid var(--c-red);
  color:var(--c-red);display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:10.5px;line-height:1.3;font-weight:600;transform:rotate(-12deg);opacity:.86;flex:none}

/* ---------------- 步骤/开关 ---------------- */
.switch{position:relative;display:inline-block;width:42px;height:23px;flex:none;cursor:pointer}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch .sl{position:absolute;inset:0;background:#cdd2dc;border-radius:23px;transition:.22s}
.switch .sl::before{content:"";position:absolute;width:17px;height:17px;left:3px;top:3px;
  background:#fff;border-radius:50%;transition:.22s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked+.sl{background:var(--c-green)}
.switch input:checked+.sl::before{transform:translateX(19px)}
.switch-row{display:flex;align-items:flex-start;gap:14px;padding:15px 0;border-bottom:1px solid var(--c-line)}
.switch-row:last-child{border-bottom:0}
.switch-row .sr-txt{flex:1}
.switch-row .sr-t{font-size:14px;font-weight:500;margin-bottom:3px}
.switch-row .sr-d{font-size:12.5px;color:var(--c-txt-3);line-height:1.7}
.switch-row .sr-d code{background:var(--c-bg-tint);padding:1px 5px;border-radius:3px;font-size:11.5px}

/* ---------------- 登录页 ---------------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px;
  background:var(--c-bg-soft)}
.auth-box{width:100%;max-width:412px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-l);padding:38px 36px 34px;box-shadow:var(--sd-s)}
.auth-box h1{font-size:21px;font-weight:600;text-align:center;margin-bottom:6px}
.auth-box .a-sub{text-align:center;font-size:13.5px;color:var(--c-txt-3);margin-bottom:28px}
.auth-foot{text-align:center;font-size:13px;color:var(--c-txt-2);margin-top:22px}
.auth-foot a{color:var(--c-primary)}
.auth-tabs{display:flex;gap:0;margin-bottom:26px;border-bottom:1px solid var(--c-line)}
.auth-tabs button{flex:1;padding:11px 0;font-size:14px;color:var(--c-txt-3);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:.15s}
.auth-tabs button.on{color:var(--c-txt);font-weight:600;border-bottom-color:var(--c-txt)}

/* ---------------- 响应式 ---------------- */
@media (max-width:860px){
  .nav{position:fixed;left:0;right:0;top:62px;background:#fff;flex-direction:column;
    align-items:stretch;padding:10px 16px 18px;border-bottom:1px solid var(--c-line);
    gap:2px;display:none;box-shadow:var(--sd-m);max-height:70vh;overflow:auto}
  .nav.open{display:flex}
  .nav a{padding:11px 12px}
  .nav-toggle{display:block}
  .logo-slogan{display:none}
  .layout{flex-direction:column;gap:20px}
  .side{width:100%;position:static;display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}
  .side-group{margin:0;display:flex;gap:6px;align-items:center}
  .side-title{display:none}
  .side a{white-space:nowrap;margin:0}
  .form-grid,.form-grid-3{grid-template-columns:1fr}
  .page-head{padding:34px 0 22px;margin-bottom:24px}
  .page-head h1{font-size:23px}
  .sec{padding:40px 0}
  .cert{padding:22px 18px}
  .cert-head{flex-direction:column}
  .card{padding:18px}
  .card-body{padding:16px}
  .hd-in{gap:12px}
  .dl>div{flex-direction:column;gap:3px}
  .dl dt{width:auto;text-align:left;font-size:12.5px}
  .wrap{padding:0 16px}
  .stat .s-n{font-size:22px}
  .modal{padding:14px}
}
@media (max-width:520px){
  .auth-box{padding:28px 20px}
  .btn-lg{height:43px;padding:0 22px}
  .pk{padding:22px 18px}
}

/* ============================================================
   首页专用
   ============================================================ */
.hero{padding:76px 0 68px;border-bottom:1px solid var(--c-line);background:
  linear-gradient(180deg,#fff 0%,var(--c-bg-soft) 100%);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(31,94,255,.07),transparent 66%);pointer-events:none}
.hero-in{display:grid;grid-template-columns:1.32fr .88fr;gap:56px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-txt-2);
  background:#fff;border:1px solid var(--c-line);padding:6px 13px;border-radius:20px;margin-bottom:22px}
.hero-kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--c-green);
  box-shadow:0 0 0 3px var(--c-green-l)}
.hero h1{font-size:42px;line-height:1.28;font-weight:600;letter-spacing:-1.2px}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;
  background:rgba(31,94,255,.14);z-index:-1;border-radius:2px}
.hero-desc{margin-top:22px;font-size:15px;line-height:1.95;color:var(--c-txt-2);max-width:576px}
.hero-btns{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:flex;gap:44px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line)}
.hero-stats>div{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-size:25px;font-weight:600;letter-spacing:-.7px;font-variant-numeric:tabular-nums}
.hero-stats span{font-size:12.5px;color:var(--c-txt-3)}

.hero-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:0 18px 50px rgba(20,22,26,.07);overflow:hidden}
.hc-head{display:flex;align-items:center;gap:6px;padding:13px 16px;border-bottom:1px solid var(--c-line);
  background:var(--c-bg-soft)}
.hc-dot{width:8px;height:8px;border-radius:50%;background:var(--c-line-2)}
.hc-title{margin-left:9px;font-size:12.5px;color:var(--c-txt-3)}
.hc-body{padding:20px}
.hc-row{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed var(--c-line);font-size:13px}
.hc-row>span{color:var(--c-txt-3);flex:none}
.hc-row>b{font-weight:500;text-align:right;word-break:break-all}
.hc-hash{flex-direction:column;align-items:flex-start;gap:6px}
.hc-hash code{font-size:11.5px;color:var(--c-txt-2);background:var(--c-bg-soft);
  padding:7px 9px;border-radius:5px;display:block;width:100%;word-break:break-all;line-height:1.6}
.hc-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:15px}

.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden}
.feat{background:#fff;padding:30px 26px;transition:.18s}
.feat:hover{background:var(--c-bg-soft)}
.feat-ico{width:38px;height:38px;border-radius:9px;background:var(--c-bg-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feat-ico svg{width:20px;height:20px;color:var(--c-txt)}
.feat h3{font-size:15px;font-weight:600;margin-bottom:8px}
.feat p{font-size:13.5px;color:var(--c-txt-2);line-height:1.85}

.flow-sec{background:var(--c-bg-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.flow .fl-n{font-size:12.5px;color:var(--c-primary);font-weight:600;letter-spacing:1.2px;margin-bottom:12px;
  font-family:var(--f-mono)}
.flow h4{font-size:15px;font-weight:600;margin-bottom:8px}
.flow p{font-size:13.5px;color:var(--c-txt-2);line-height:1.85}
.flow{position:relative;padding-right:16px}
.flow::after{content:"";position:absolute;right:-16px;top:6px;width:1px;height:calc(100% - 10px);
  background:var(--c-line-2)}
.flow:last-child::after{display:none}

@media (max-width:900px){
  .hero{padding:44px 0 40px}
  .hero-in{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:28px;letter-spacing:-.6px}
  .hero-desc{font-size:14px;margin-top:16px}
  .hero-stats{gap:26px;margin-top:30px}
  .hero-stats b{font-size:20px}
  .feat-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr 1fr;gap:22px}
  .flow::after{display:none}
}
@media (max-width:520px){
  .flow-grid{grid-template-columns:1fr}
  .hero h1{font-size:24px}
  .hero-btns .btn{flex:1}
}

/* ---------------- 筛选栏 ---------------- */
.filter-bar{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  padding:16px 0;border-bottom:1px solid var(--c-line)}
.fb-cats{display:flex;gap:4px;flex-wrap:wrap}
.fb-cats a{padding:6px 13px;border-radius:16px;font-size:13.5px;color:var(--c-txt-2);transition:.15s}
.fb-cats a:hover{background:var(--c-bg-tint);color:var(--c-txt)}
.fb-cats a.on{background:var(--c-txt);color:#fff;font-weight:500}
.fb-search{display:flex;gap:8px;flex:1;max-width:392px;min-width:220px}
.fb-search .inp{flex:1}
.sort-tabs{display:flex;gap:14px;font-size:13.5px}
.sort-tabs a{color:var(--c-txt-3)}
.sort-tabs a.on{color:var(--c-txt);font-weight:600}

/* ---------------- 面包屑 / 详情页 ---------------- */
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--c-txt-3);
  padding:22px 0 0;flex-wrap:wrap}
.crumb a{color:var(--c-txt-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb i{font-style:normal;color:var(--c-line-2)}
.crumb span{color:var(--c-txt-2)}
.detail{display:grid;grid-template-columns:1fr 342px;gap:28px;padding:22px 0 70px;align-items:flex-start}
.dt-main{min-width:0}
.dt-pic{border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;background:var(--c-bg-soft)}
.dt-pic img{width:100%;max-height:640px;object-fit:contain;cursor:zoom-in;background:#fff}
.dt-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:10px;margin-top:12px}
.dt-gallery img{aspect-ratio:1;object-fit:cover;border-radius:var(--r-s);border:1px solid var(--c-line);
  cursor:zoom-in;transition:.16s}
.dt-gallery img:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.dt-intro{margin-top:22px;padding-top:20px;border-top:1px solid var(--c-line)}
.dt-intro h4{font-size:13.5px;font-weight:600;margin-bottom:10px;color:var(--c-txt-2)}
.dt-intro p{font-size:14px;line-height:2;color:var(--c-txt-2)}
.dt-side{position:sticky;top:86px}
.dt-side .dl dt{width:88px;font-size:12.5px}
.dt-side .dl dd{font-size:13px}
.author-brief{display:flex;align-items:center;gap:13px}
.ab-av{width:46px;height:46px;border-radius:50%;overflow:hidden;flex:none;background:var(--c-txt);
  display:flex;align-items:center;justify-content:center}
.ab-av img{width:100%;height:100%;object-fit:cover}
.ab-av span{color:#fff;font-size:18px;font-weight:600}
.ab-info b{font-size:14.5px;display:block}
@media (max-width:900px){
  .detail{grid-template-columns:1fr;gap:20px}
  .dt-side{position:static}
}

/* ---------------- 验真页 ---------------- */
.verify-box{border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff;overflow:hidden}
.vf-tabs{display:flex;border-bottom:1px solid var(--c-line);background:var(--c-bg-soft)}
.vf-tabs button{padding:14px 24px;font-size:14px;color:var(--c-txt-3);border-bottom:2px solid transparent;
  margin-bottom:-1px;transition:.15s}
.vf-tabs button.on{color:var(--c-txt);font-weight:600;border-bottom-color:var(--c-txt);background:#fff}
.vf-body{padding:24px}
.verdict{padding:20px 22px;border-radius:var(--r-m);border:1px solid var(--c-line);background:var(--c-bg-soft)}
.verdict b{display:block;font-size:15.5px;margin-bottom:6px}
.verdict span{font-size:13.5px;color:var(--c-txt-2);line-height:1.85}
.verdict.ok{background:var(--c-green-l);border-color:rgba(18,161,80,.2)}
.verdict.ok b{color:#0b7a3b}
.verdict.warn{background:var(--c-orange-l);border-color:rgba(224,134,0,.2)}
.verdict.warn b{color:#9a5c00}
.note-list li{position:relative;padding-left:18px;font-size:13.5px;color:var(--c-txt-2);
  line-height:1.95;margin-bottom:10px}
.note-list li:last-child{margin-bottom:0}
.note-list li::before{content:"";position:absolute;left:5px;top:10px;width:5px;height:5px;
  border-radius:50%;background:var(--c-line-2)}
.note-list b{color:var(--c-txt)}

/* ---------------- 文档页 ---------------- */
.doc-layout{display:grid;grid-template-columns:212px 1fr;gap:40px;padding:40px 0 70px;align-items:flex-start}
.doc-side{position:sticky;top:86px}
.doc-side a{display:block;padding:8px 12px;border-radius:var(--r-s);font-size:13.5px;
  color:var(--c-txt-2);transition:.14s;margin-bottom:2px}
.doc-side a:hover{background:var(--c-bg-tint);color:var(--c-txt)}
.doc-side a.on{background:var(--c-txt);color:#fff;font-weight:500}
.doc-body{min-width:0;max-width:840px}
.doc-body h1{font-size:25px;font-weight:600;letter-spacing:-.4px;margin-bottom:8px}
.doc-meta{font-size:12.5px;color:var(--c-txt-3);padding-bottom:20px;
  border-bottom:1px solid var(--c-line);margin-bottom:26px}
.doc-content{font-size:14.5px;line-height:2.05;color:var(--c-txt-2)}
.doc-content h2{font-size:16.5px;font-weight:600;color:var(--c-txt);margin:34px 0 12px;
  padding-left:12px;border-left:3px solid var(--c-txt);line-height:1.5}
.doc-content h3{font-size:15px;font-weight:600;color:var(--c-txt);margin:24px 0 10px}
.doc-content h4{font-size:14px;font-weight:600;color:var(--c-txt);margin:18px 0 8px}
.doc-content p{margin-bottom:14px}
.doc-content ul,.doc-content ol{margin:0 0 16px;padding-left:2px}
.doc-content ul li{position:relative;padding-left:18px;margin-bottom:9px}
.doc-content ul li::before{content:"";position:absolute;left:5px;top:12px;width:5px;height:5px;
  border-radius:50%;background:var(--c-line-2)}
.doc-content ol{counter-reset:o;padding-left:0;list-style:none}
.doc-content ol li{position:relative;padding-left:26px;counter-increment:o;margin-bottom:9px}
.doc-content ol li::before{content:counter(o) ".";position:absolute;left:0;top:0;
  font-weight:600;color:var(--c-txt);font-family:var(--f-mono);font-size:13px}
.doc-content strong{color:var(--c-txt);font-weight:600}
.doc-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:2px}
.doc-content blockquote{margin:16px 0;padding:14px 18px;background:var(--c-bg-soft);
  border-left:3px solid var(--c-line-2);border-radius:0 var(--r-s) var(--r-s) 0;
  font-size:13.5px;color:var(--c-txt-2)}
.doc-content table{margin:16px 0;font-size:13.5px;border:1px solid var(--c-line)}
.doc-content th,.doc-content td{padding:10px 13px;border:1px solid var(--c-line);text-align:left}
.doc-content th{background:var(--c-bg-soft);font-weight:600;color:var(--c-txt)}
.doc-content code{background:var(--c-bg-tint);padding:2px 6px;border-radius:3px;font-size:12.5px}
.doc-content hr{border:0;border-top:1px solid var(--c-line);margin:26px 0}
@media (max-width:860px){
  .doc-layout{grid-template-columns:1fr;gap:22px;padding:24px 0 50px}
  .doc-side{position:static;display:flex;gap:6px;overflow-x:auto;padding-bottom:6px}
  .doc-side a{white-space:nowrap;margin:0}
  .doc-side .side-title{display:none}
  .doc-body h1{font-size:20px}
  .doc-content{font-size:14px;line-height:1.95}
}

/* ---------------- 关于页 ---------------- */
.about-grid{display:grid;grid-template-columns:1fr 336px;gap:32px;padding-bottom:70px;align-items:flex-start}
.about-side{position:sticky;top:86px}
.quick-links{display:flex;flex-direction:column;gap:4px}
.quick-links a{display:block;padding:8px 11px;border-radius:var(--r-s);font-size:13.5px;
  color:var(--c-txt-2);transition:.14s}
.quick-links a:hover{background:var(--c-bg-tint);color:var(--c-primary)}
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr;gap:20px}
  .about-side{position:static}
}

/* ---------------- 用户中心 ---------------- */
.uc-user{display:flex;align-items:center;gap:12px;padding:14px 12px;border:1px solid var(--c-line);
  border-radius:var(--r-m);background:#fff}
.uc-av{width:42px;height:42px;border-radius:50%;overflow:hidden;flex:none;background:var(--c-txt);
  display:flex;align-items:center;justify-content:center}
.uc-av img{width:100%;height:100%;object-fit:cover}
.uc-av span{color:#fff;font-size:17px;font-weight:600}
.uc-uinfo{min-width:0;flex:1}
.uc-uinfo b{font-size:14px;display:block;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;margin-bottom:4px}
.uc-tags{display:flex;gap:4px;flex-wrap:wrap}
.uc-head{padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--c-line)}
.uc-head h1{font-size:21px;font-weight:600;letter-spacing:-.3px}
.uc-head p{font-size:13.5px;color:var(--c-txt-3);margin-top:5px}
@media (max-width:860px){
  .uc-user{flex:1;min-width:190px}
}

/* ---------------- 用户中心补充 ---------------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cell-work{display:flex;align-items:center;gap:12px}
.todo-list li{border-bottom:1px solid var(--c-line);padding:11px 0;font-size:13.5px}
.todo-list li:last-child{border-bottom:0}
.todo-list li a{display:flex;align-items:center;gap:9px;color:var(--c-txt-2)}
.todo-list li a::before{content:"○";color:var(--c-orange);font-size:11px}
.todo-list li a:hover{color:var(--c-primary)}
@media (max-width:900px){ .grid-2{grid-template-columns:1fr} }

/* ---------------- 分节表单 ---------------- */
.form-sec{padding:22px 0;border-bottom:1px solid var(--c-line)}
.form-sec:first-child{padding-top:0}
.form-sec:last-of-type{border-bottom:0;padding-bottom:0}
.fs-t{font-size:15px;font-weight:600;margin-bottom:5px}
.fs-d{font-size:12.5px;color:var(--c-txt-3);margin-bottom:16px;line-height:1.75}
.form-actions{display:flex;align-items:center;gap:8px;padding-top:24px;flex-wrap:wrap}
.agree-box{border:1px solid var(--c-line);border-radius:var(--r-s);padding:13px 15px;
  background:var(--c-bg-soft)}
.agree-box .check{margin-bottom:9px;font-size:13px}
.agree-box .check:last-child{margin-bottom:0}
.agree-box a{color:var(--c-primary);text-decoration:underline;text-underline-offset:2px}

/* ---------------- 用户中心工具栏 ---------------- */
.uc-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding-bottom:16px;border-bottom:1px solid var(--c-line)}

/* ---------------- 实名认证 ---------------- */
.drop.mini{padding:16px 12px}
.drop.mini .d-txt{font-size:12.5px}
.up-preview{margin-top:9px}
.up-preview img{width:100%;max-height:150px;object-fit:cover;border-radius:var(--r-s);
  border:1px solid var(--c-line);cursor:zoom-in}
.up-pv-name{font-size:11.5px;color:var(--c-txt-3);word-break:break-all}
.face-box{width:230px;height:230px;border-radius:var(--r-m);overflow:hidden;background:var(--c-bg-tint);
  border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;position:relative}
.face-box video,.face-box canvas,.face-box img{width:100%;height:100%;object-fit:cover}
.face-ph{text-align:center;padding:16px}
.face-ph .fp-ico{width:46px;height:46px;margin:0 auto 10px;border-radius:50%;background:#fff;
  display:flex;align-items:center;justify-content:center;border:1px solid var(--c-line)}
.face-ph .fp-ico svg{width:24px;height:24px;color:var(--c-txt-3)}
.face-ph p{font-size:12.5px;color:var(--c-txt-3);margin:0}
@media (max-width:520px){ .face-box{width:100%;max-width:280px;height:auto;aspect-ratio:1} }

/* ---------------- 会员中心 ---------------- */
.vip-hero{display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 26px;border-radius:var(--r-m);background:linear-gradient(120deg,#1a1c22,#2c3040);
  color:#fff;flex-wrap:wrap}
.vh-plan{font-size:20px;font-weight:600;letter-spacing:-.3px}
.vh-exp{font-size:13px;opacity:.72;margin-top:5px}
.vh-quota{text-align:right}
.vh-quota b{font-size:28px;font-weight:600;letter-spacing:-.8px}
.vh-quota span{font-size:14px;opacity:.72}
.vh-quota em{display:block;font-style:normal;font-size:12px;opacity:.6;margin-top:3px}
.pk.pick{cursor:pointer}
.pk.pick.sel{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,94,255,.1)}
.pk.pick.is-cur{border-color:var(--c-txt)}
.pk-cur{position:absolute;right:20px;top:-10px;background:var(--c-green);color:#fff;
  font-size:11.5px;padding:3px 10px;border-radius:20px;font-weight:500}
.avatar-row{display:flex;align-items:center;gap:20px}
.av-pic{width:76px;height:76px;border-radius:50%;overflow:hidden;flex:none;background:var(--c-txt);
  display:flex;align-items:center;justify-content:center}
.av-pic img{width:100%;height:100%;object-fit:cover}
.av-pic span{color:#fff;font-size:28px;font-weight:600}

/* ---------------- 帮助中心 ---------------- */
.help-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:30px;padding-bottom:70px;align-items:flex-start}
.help-side{position:sticky;top:86px}
.card-head .ch-sub{font-size:12.5px;color:var(--c-txt-3);font-weight:400;flex:none}

/* 头部 Hero */
.help-hero{position:relative;margin:0 0 20px;padding:46px 34px 42px;border-radius:var(--r-l);
  background:linear-gradient(150deg,#1d2233 0%,#20293f 46%,#171b28 100%);overflow:hidden}
.help-hero .hh-glow{position:absolute;inset:auto -90px -140px auto;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(196,164,110,.30),rgba(196,164,110,0) 68%);pointer-events:none}
.help-hero .hh-inner{position:relative;max-width:660px}
.help-hero h1{font-size:27px;font-weight:600;color:#fff;letter-spacing:.5px;margin:0 0 9px}
.help-hero .hh-sub{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;margin:0}

.hh-search{position:relative;display:flex;align-items:center;gap:10px;margin-top:22px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-m);
  padding:0 14px;height:46px;transition:.2s}
.hh-search:focus-within{background:rgba(255,255,255,.14);border-color:rgba(196,164,110,.62)}
.hh-search svg{color:rgba(255,255,255,.5);flex:none}
.hh-search input{flex:1;min-width:0;background:none;border:0;outline:none;height:100%;
  color:#fff;font-size:14px;font-family:inherit}
.hh-search input::placeholder{color:rgba(255,255,255,.42)}
.hh-search input::-webkit-search-cancel-button{display:none}
.hh-clr{flex:none;width:22px;height:22px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(255,255,255,.16);color:rgba(255,255,255,.8);font-size:14px;line-height:1;
  display:flex;align-items:center;justify-content:center}
.hh-clr:hover{background:rgba(255,255,255,.26)}

.hh-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:14px;margin-top:26px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.11)}
.hh-stat b{display:block;font-size:19px;font-weight:600;color:#e2cd9f;letter-spacing:.3px}
.hh-stat span{display:block;font-size:12px;color:rgba(255,255,255,.5);margin-top:5px}

/* 顶部提示条 */
.help-notice{display:flex;gap:11px;align-items:flex-start;margin-bottom:20px;padding:14px 18px;
  border-radius:var(--r-m);background:var(--c-bg-tint);border:1px solid var(--c-line);
  font-size:13px;line-height:1.85;color:var(--c-txt-2)}
.help-notice svg{flex:none;margin-top:3px;color:var(--c-primary)}
.help-notice b{color:var(--c-txt)}

/* FAQ 分类筛选 */
.faq-tabs{display:flex;gap:8px;flex-wrap:wrap;padding-bottom:16px;margin-bottom:4px;
  border-bottom:1px solid var(--c-line)}
.faq-tab{cursor:pointer;font-family:inherit;font-size:12.5px;padding:6px 14px;border-radius:20px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-txt-2);transition:.18s}
.faq-tab:hover{border-color:var(--c-primary);color:var(--c-primary)}
.faq-tab.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* 步骤条（纵向编号） */
.flow-steps{list-style:none;padding:0;margin:0}
.flow-steps>li{display:flex;gap:16px;padding:0 0 24px;position:relative}
.flow-steps>li:last-child{padding-bottom:0}
.flow-steps>li::before{content:"";position:absolute;left:16px;top:36px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--c-line-2),var(--c-line));border-radius:2px}
.flow-steps>li:last-child::before{display:none}
.flow-steps .step-no{width:33px;height:33px;flex:none;border-radius:50%;background:var(--c-bg-tint);
  border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;color:var(--c-txt);position:relative;z-index:1;
  box-shadow:0 0 0 4px #fff;transition:.2s}
.flow-steps>li:hover .step-no{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.flow-steps .step-body{flex:1;padding-top:5px;min-width:0}
.flow-steps .step-body b{display:block;font-size:14.5px;font-weight:600;color:var(--c-txt);margin-bottom:6px}
.flow-steps .step-body p{font-size:13px;line-height:1.9;color:var(--c-txt-3);margin:0}

/* 常见问题折叠 */
.faq details{border-bottom:1px solid var(--c-line);padding:2px 0}
.faq details:last-child{border-bottom:0}
.faq summary{list-style:none;cursor:pointer;padding:15px 32px 15px 2px;font-size:14px;
  font-weight:500;color:var(--c-txt);position:relative;line-height:1.7;user-select:none;
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;transition:.16s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:50%;width:9px;height:9px;
  border-right:1.8px solid var(--c-txt-3);border-bottom:1.8px solid var(--c-txt-3);
  transform:translateY(-70%) rotate(45deg);transition:.22s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--c-primary)}
.faq summary:hover{color:var(--c-primary)}
.faq .faq-q{flex:1;min-width:0}
.faq .faq-cat{flex:none;font-size:11px;font-weight:400;color:var(--c-txt-3);
  background:var(--c-bg-tint);border-radius:20px;padding:2px 9px;line-height:1.6}
.faq .faq-a{padding:0 32px 19px 2px;font-size:13.5px;line-height:2;color:var(--c-txt-2)}
.faq .faq-a b{color:var(--c-txt);font-weight:600}
.faq .faq-a a{color:var(--c-primary)}
.faq-empty{padding:26px 4px;font-size:13.5px;color:var(--c-txt-3);line-height:1.9}

/* 类别说明表 */
.cat-table{overflow-x:auto}
.cat-table .tb{width:100%;border-collapse:collapse;font-size:13.5px}
.cat-table .tb th{text-align:left;font-weight:600;font-size:12.5px;color:var(--c-txt-3);
  padding:4px 12px 12px 0;border-bottom:1px solid var(--c-line)}
.cat-table .tb td{padding:13px 12px 13px 0;border-bottom:1px solid var(--c-line);
  vertical-align:top;line-height:1.8}
.cat-table .tb tr:last-child td{border-bottom:0}
.cat-table .tb tbody tr:hover td{background:var(--c-bg-tint)}

.help-foot-note{margin:18px 2px 0;font-size:12.5px;line-height:1.9;color:var(--c-txt-3)}

@media (max-width:900px){
  .help-grid{grid-template-columns:1fr;gap:20px}
  .help-side{position:static}
  .help-hero{padding:34px 22px 32px;border-radius:var(--r-m)}
  .help-hero h1{font-size:22px}
  .hh-stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .faq .faq-a{padding-right:4px}
  .faq summary{padding-right:28px}
}