/* ============ 千川智库 · 全局样式 ============ */
:root{
  --ink:#15181f; --ink2:#3c4150; --muted:#7a8194;
  --bg:#f4f6fb; --card:#fff; --line:#e8ebf2;
  --brand:#ff4d1f; --brand2:#ff2e63;
  --navy:#0f1c33; --navy2:#17294a;
  --grad:linear-gradient(120deg,#ff5a1f 0%,#ff2e63 100%);
  --radius:16px; --shadow:0 6px 24px rgba(20,28,48,.07);
  --shadow-lg:0 14px 40px rgba(20,28,48,.12);
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.7; font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select{font-family:inherit;font-size:15px;color:var(--ink)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
/* ---------- 顶部导航 ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.brand .logo{width:34px;height:34px;border-radius:9px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;box-shadow:0 4px 10px rgba(255,74,31,.35)}
.brand small{display:block;font-size:10px;font-weight:600;color:var(--muted);letter-spacing:1px;line-height:1}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{padding:8px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink2);transition:.15s}
.nav-links a:hover{background:#f1f3f8;color:var(--ink)}
.nav-links a.active{color:var(--brand);background:rgba(255,77,31,.08);font-weight:600}
/* ---------- 页脚 ---------- */
.footer{margin-top:70px;background:var(--navy);color:#aeb9cc;font-size:14px}
.footer-inner{padding:40px 20px 26px;display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:flex-start}
.footer .f-brand{color:#fff;font-size:18px;font-weight:700}
.footer .f-brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer .f-copy{width:100%;text-align:center;border-top:1px solid rgba(255,255,255,.08);padding-top:16px;font-size:12.5px;color:#7d8aa3}
.footer .f-copy a.beian{color:#a9b8d3;text-decoration:none}
.footer .f-copy a.beian:hover{color:#fff}
.footer ul{list-style:none;display:flex;gap:18px;flex-wrap:wrap}
.footer a:hover{color:#fff}
/* ---------- 通用组件 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:12px;font-size:15.5px;font-weight:600;border:none;transition:.18s;line-height:1.4}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(255,74,31,.3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,74,31,.4)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy2)}
.section-title{font-size:26px;font-weight:800;letter-spacing:.5px}
.section-sub{color:var(--muted);margin-top:6px;font-size:15.5px}
.eyebrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:13px;letter-spacing:2px;text-transform:uppercase}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#f1f3f8;color:var(--ink2);white-space:nowrap}
.tag.brand{background:rgba(255,77,31,.1);color:var(--brand)}
.tag.navy{background:rgba(15,28,51,.06);color:var(--navy)}
.tag.green{background:rgba(22,163,74,.1);color:#15803d}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
/* ---------- Hero ---------- */
.hero{background:
  radial-gradient(700px 300px at 85% -10%,rgba(255,90,31,.35),transparent 60%),
  radial-gradient(600px 260px at 0% 110%,rgba(46,99,255,.25),transparent 60%),
  linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,#22355c 100%);
  color:#fff;padding:88px 0 96px;position:relative;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.35fr .9fr;gap:44px;align-items:center}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.5px}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{margin:20px 0 30px;color:#c3cde0;font-size:17px;max-width:560px}
.hero-stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:30px;font-weight:800}
.hero-stats b em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:13px;color:#9dabc3}
.hero-float{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:26px;backdrop-filter:blur(6px)}
.hero-float .q{font-weight:600;font-size:16px}
.hero-float .q::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--grad);margin-right:10px}
.hero-float .a{font-size:13.5px;color:#c9d3e5;margin:10px 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hero-float .m{display:flex;gap:8px;flex-wrap:wrap}
/* ---------- 首页区块 ---------- */
.section{padding:64px 0}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.feature{padding:28px 26px;transition:.2s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature .icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.feature h3{font-size:19px;font-weight:700;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14.5px}
.know-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.know-chip{display:flex;flex-direction:column;gap:2px;padding:14px 20px;border-radius:14px;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);min-width:128px;transition:.18s}
.know-chip:hover{border-color:rgba(255,77,31,.4);transform:translateY(-2px)}
.know-chip b{font-size:20px}
.know-chip b em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.know-chip span{font-size:13px;color:var(--muted)}
.hot-list{margin-top:34px;display:flex;flex-direction:column;gap:14px}
.hot-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}
.hot-refresh{margin-bottom:4px;padding:8px 15px;border-radius:999px;border:1px solid rgba(255,77,31,.30);background:rgba(255,255,255,.72);color:var(--brand);font-size:13px;font-weight:800;transition:.16s}
.hot-refresh:hover{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 18px rgba(255,74,31,.20)}
.hot-item{padding:20px 22px;transition:.18s;cursor:pointer}
.hot-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.hot-item h4{font-size:16.5px;font-weight:600;margin-bottom:6px}
.hot-item p{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-item .row{display:flex;align-items:center;gap:8px;margin-top:10px}
.cta-band{margin-top:70px;background:var(--grad);border-radius:24px;color:#fff;padding:46px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:24px;font-weight:800}
.cta-band p{opacity:.92;font-size:15px;margin-top:4px}
/* ---------- 知识库 ---------- */
.page-head{background:linear-gradient(120deg,var(--navy),#1d2f52);color:#fff;padding:52px 0}
.page-head h1{font-size:30px;font-weight:800}
.page-head p{color:#aebad1;margin-top:6px}
.zhiku-wrap{display:grid;grid-template-columns:250px minmax(0,1fr);gap:26px;margin-top:28px;align-items:start}
.zhiku-wrap > main{min-width:0}
.side{position:sticky;top:84px}
.panel{padding:20px;margin-bottom:18px}
.panel h3{font-size:14px;font-weight:700;letter-spacing:1px;color:var(--ink2);margin-bottom:14px}
.chip-list{display:flex;flex-direction:column;gap:2px}
.chip-list button{display:flex;align-items:center;justify-content:space-between;border:none;background:none;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink2);text-align:left;width:100%;transition:.12s}
.chip-list button:hover{background:#f2f4f9}
.chip-list button.on{background:rgba(255,77,31,.08);color:var(--brand);font-weight:600}
.chip-list button span{font-size:12px;opacity:.7;font-weight:500}
.chip-list.row{flex-direction:row;gap:6px;overflow-x:auto;padding:2px 2px 6px;scrollbar-width:none;width:100%;min-width:0}
.chip-list.row::-webkit-scrollbar{display:none}
.chip-list.row button{width:auto;flex:0 0 auto;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--card)}
.chip-list.row button span{flex:0 0 auto}
.mf-group{margin-bottom:12px;width:100%;min-width:0}
.mf-label{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:1px;margin-bottom:6px}
.searchbox{position:relative;margin-bottom:16px}
.searchbox svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.45}
.searchbox input{width:100%;padding:12px 16px 12px 42px;border:1px solid var(--line);border-radius:12px;outline:none;background:var(--card);transition:.15s}
.searchbox input:focus{border-color:rgba(255,77,31,.5);box-shadow:0 0 0 3px rgba(255,77,31,.1)}
.result-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px;color:var(--muted);font-size:14px}
.qa-list{display:flex;flex-direction:column;gap:14px}
.qa-card{padding:20px 22px;transition:.15s}
.qa-card.open{border-color:rgba(255,77,31,.45);box-shadow:var(--shadow-lg)}
.qa-card h3{font-size:16.5px;font-weight:600;line-height:1.5;cursor:pointer;display:flex;gap:12px;align-items:flex-start}
.qa-card h3 .qi{flex:0 0 24px;height:24px;border-radius:7px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px}
.qa-card .answer{color:#3d4353;font-size:15px;line-height:1.85;margin:14px 0 4px;white-space:pre-wrap}
.qa-card:not(.open) .answer{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;cursor:pointer}
.qa-card .foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:12px}
.qa-card .meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.qa-card .toggle{font-size:13px;color:var(--brand);font-weight:600;background:none;border:none}
.empty{padding:60px 20px;text-align:center;color:var(--muted)}
.empty b{display:block;font-size:17px;color:var(--ink2);margin-bottom:6px}
#loadMore{display:block;margin:26px auto 0;border:1px solid var(--line);background:var(--card);padding:11px 34px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink2);transition:.15s}
#loadMore:hover{border-color:rgba(255,77,31,.5);color:var(--brand)}
/* 移动端筛选抽屉 */
.mobile-filter{display:none;margin-bottom:14px;width:100%;min-width:0}
@media(max-width:920px){
  .zhiku-wrap{grid-template-columns:1fr}
  .zhiku-wrap .side{display:none}
  .mobile-filter{display:flex;flex-direction:column;gap:4px}
}
/* ---------- 工具箱 ---------- */
.tools-hero{padding:56px 0 46px;text-align:center;background:linear-gradient(120deg,var(--navy),#1d2f52);color:#fff}
.tools-hero h1{font-size:32px;font-weight:800}
.tools-hero p{color:#aebad1;max-width:640px;margin:10px auto 0}
/* 工具箱：文案入口 */
.cw-entry{margin-top:28px;padding:24px 26px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;position:relative;overflow:hidden;
  border-color:rgba(255,77,31,.28);background:linear-gradient(120deg,#fff7f3,#fff4f8)}
.cw-entry::after{content:"";position:absolute;right:-70px;top:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,31,.12),transparent 68%);pointer-events:none}
.cw-entry-icon{position:relative;z-index:1;width:58px;height:58px;border-radius:17px;display:flex;align-items:center;justify-content:center;
  font-size:29px;background:#fff;border:1px solid rgba(255,77,31,.16);box-shadow:0 8px 20px rgba(255,77,31,.10);flex:0 0 58px}
.cw-entry-main{position:relative;z-index:1;flex:1;min-width:240px}
.cw-entry-kicker{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--brand);margin-bottom:4px}
.cw-entry-main h2{font-size:21px;font-weight:800;line-height:1.35}
.cw-entry-main p{color:var(--muted);font-size:14px;margin-top:5px;line-height:1.7}
.cw-entry>.btn{position:relative;z-index:1;white-space:nowrap}
/* 工具箱：ROI 计算工具折叠区 */
.tool-fold{margin-top:18px;border:1px solid rgba(22,32,60,.10);border-radius:20px;background:linear-gradient(180deg,#ffffff,#fbfcff);
  box-shadow:0 12px 32px rgba(20,28,48,.07);overflow:hidden}
.tool-fold-head{width:100%;display:flex;align-items:center;gap:14px;padding:18px 22px;border:0;border-bottom:1px solid transparent;
  background:transparent;text-align:left;cursor:pointer;transition:.18s}
.tool-fold-head:hover{background:rgba(255,77,31,.035)}
.tool-fold-head[aria-expanded="true"]{border-bottom-color:var(--line)}
.tool-fold-icon{width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;flex:0 0 44px;
  font-size:21px;background:linear-gradient(135deg,rgba(255,90,31,.11),rgba(70,124,255,.08));border:1px solid rgba(22,32,60,.06)}
.tool-fold-main{flex:1;min-width:0;display:flex;flex-direction:column}
.tool-fold-main b{font-size:17px;font-weight:800;color:var(--ink)}
.tool-fold-main small{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.tool-fold-action{display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;color:var(--brand);font-size:13px;font-weight:800}
.tool-fold-chevron{display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;border-radius:50%;
  background:rgba(255,77,31,.09);font-size:16px;line-height:1;transition:transform .2s}
.tool-fold-head[aria-expanded="true"] .tool-fold-chevron{transform:rotate(180deg)}
.tool-fold-body{padding:0 22px 22px}
.tool-fold-body[hidden]{display:none}
.tool-fold .tool-grid{margin-top:2px}
@media(max-width:860px){
  .cw-entry{padding:20px;gap:14px}
  .cw-entry-icon{width:50px;height:50px;flex-basis:50px;font-size:25px}
  .cw-entry-main h2{font-size:18px}
  .cw-entry-main p{font-size:13.5px}
  .cw-entry>.btn{width:100%}
  .tool-fold-head{padding:15px 16px;gap:10px}
  .tool-fold-main small{white-space:normal;font-size:12.5px}
  .tool-fold-body{padding:0 14px 16px}
}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:22px;margin-top:30px}
.tool-card{padding:28px}
.tool-card h2{font-size:20px;font-weight:800;display:flex;align-items:center;gap:10px}
.tool-card h2 .ic{width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;flex:0 0 38px}
.tool-card .desc{color:var(--muted);font-size:14px;margin:8px 0 20px}
/* 数字框去掉上下箭头，避免和“元/%”单位重叠 */
.input-wrap input[type="number"]{padding-right:50px;appearance:textfield;-moz-appearance:textfield}
.input-wrap input[type="number"]::-webkit-outer-spin-button,
.input-wrap input[type="number"]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.tool-workbench{display:grid;grid-template-columns:286px minmax(0,1fr);gap:22px;margin-top:28px;align-items:start}
.tool-side{min-width:0}
.tool-side-head{padding:4px 4px 16px}
.tool-side-head h2{font-size:24px;font-weight:800;letter-spacing:.4px;margin-top:7px}
.tool-side-head p{font-size:13.5px;color:var(--muted);margin-top:5px;line-height:1.7}
.tool-catalog{display:flex;flex-direction:column;gap:16px}
.tool-menu-group{padding:12px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.62);box-shadow:0 6px 18px rgba(20,28,48,.04)}
.tool-menu-group-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;padding:2px 5px 9px;border-bottom:1px solid rgba(22,32,60,.07);margin-bottom:7px}
.tool-menu-group-head b{font-size:13px;font-weight:800;color:var(--ink)}
.tool-menu-group-head small{font-size:11px;color:var(--muted);text-align:right}
.tool-menu-item{width:100%;display:flex;align-items:center;gap:10px;padding:9px 8px;border:0;border-radius:11px;background:transparent;color:var(--ink2);text-align:left;transition:.16s}
.tool-menu-item:hover{background:#f4f6fb;color:var(--ink)}
.tool-menu-item.active{background:linear-gradient(120deg,rgba(255,90,31,.11),rgba(255,46,99,.08));color:var(--brand);box-shadow:inset 3px 0 0 var(--brand)}
.tool-menu-icon{width:29px;height:29px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex:0 0 29px;background:rgba(15,28,51,.05);font-size:15px}
.tool-menu-item.active .tool-menu-icon{background:#fff;box-shadow:0 4px 10px rgba(255,77,31,.12)}
.tool-menu-text{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.25}
.tool-menu-text b{font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tool-menu-text small{font-size:11px;color:var(--muted);margin-top:2px}
.tool-menu-arrow{font-size:20px;color:#c1c8d6;line-height:1;transition:.16s}
.tool-menu-item.active .tool-menu-arrow{color:var(--brand);transform:translateX(2px)}
.tool-stage{min-height:590px;padding:28px 30px;border:1px solid rgba(22,32,60,.10);border-radius:22px;
  background:linear-gradient(180deg,#ffffff 0%,#fbfcff 100%);box-shadow:0 16px 44px rgba(20,28,48,.09)}
.tool-stage .tool-card{border:0;box-shadow:none;padding:0;background:transparent}
.tool-stage .tool-card h2{font-size:22px}
.tool-stage .tool-card .desc{max-width:760px;margin-bottom:22px}
.tool-card-launch{min-height:430px;display:flex;flex-direction:column;justify-content:center;position:relative}
.launch-kicker{display:inline-flex;align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:1px;color:var(--brand);background:rgba(255,77,31,.08);border:1px solid rgba(255,77,31,.12);border-radius:999px;padding:5px 10px;margin-bottom:14px}
.tool-card-launch h2{font-size:28px}
.launch-features{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.launch-features span{font-size:12.5px;font-weight:700;color:var(--ink2);background:#f4f6fb;border:1px solid var(--line);border-radius:999px;padding:5px 10px}
.launch-btn{margin-top:24px;align-self:flex-start;padding:12px 24px}
.tool-kind{margin-left:auto;font-size:11px;font-weight:800;line-height:1;color:var(--brand);background:rgba(255,77,31,.08);border:1px solid rgba(255,77,31,.12);border-radius:999px;padding:5px 8px;white-space:nowrap}
.tool-section{margin-top:38px}
.tool-section-head{padding-left:4px}
.tool-section-head h2{font-size:26px;font-weight:800;letter-spacing:.4px;margin-top:7px}
.tool-section-head p{font-size:14.5px;color:var(--muted);margin-top:5px}
.tool-section .tool-grid{margin-top:20px}
.tool-card-words .words-input{width:100%;resize:vertical;min-height:150px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fbfcfe;color:var(--ink);outline:none;font-family:inherit;font-size:14px;line-height:1.7;transition:.15s}
.tool-card-words .words-input:focus{border-color:rgba(255,77,31,.55);box-shadow:0 0 0 3px rgba(255,77,31,.1);background:#fff}
.words-result{margin-top:16px;padding:14px 15px;border-radius:13px;background:#fafbfe;border:1px dashed var(--line)}
.words-summary{font-size:14px;font-weight:800;color:#b45309;margin-bottom:10px}
.words-summary b{color:#dc2626}
.words-tags{display:flex;flex-wrap:wrap;gap:7px}
.risk-word{display:inline-flex;font-size:12.5px;font-weight:800;color:#b42318;background:rgba(220,38,38,.09);border:1px solid rgba(220,38,38,.16);border-radius:999px;padding:4px 9px}
.words-safe{font-size:13.5px;font-weight:700;color:#15803d;line-height:1.7}
.words-empty{margin-top:9px;font-size:12.5px;color:var(--muted);line-height:1.7}
@media(max-width:860px){
  .tool-kind{margin-left:0}
  .tool-section-head h2{font-size:22px}
  .tool-workbench{grid-template-columns:1fr;gap:16px}
  .tool-side-head{padding:2px 2px 10px}
  .tool-side-head h2{font-size:21px}
  .tool-catalog{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .tool-menu-group{padding:9px}
  .tool-menu-group-head{display:block;padding:1px 4px 7px}
  .tool-menu-group-head small{display:block;text-align:left;margin-top:2px}
  .tool-menu-item{padding:8px 6px}
  .tool-menu-icon{display:none}
  .tool-menu-text b{font-size:12.5px;white-space:normal}
  .tool-stage{min-height:0;padding:20px 16px;border-radius:18px}
  .input-row{grid-template-columns:1fr}
}
@media(max-width:520px){
  .tool-catalog{grid-template-columns:1fr}
}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink2);margin-bottom:6px}
.input-wrap{position:relative}
.input-wrap input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:11px;outline:none;background:#fbfcfe;transition:.15s}
.input-wrap input:focus{border-color:rgba(255,77,31,.55);box-shadow:0 0 0 3px rgba(255,77,31,.1)}
.input-wrap .unit{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);pointer-events:none}
.input-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.result-box{margin-top:18px;border-radius:14px;background:linear-gradient(120deg,#fff5f0,#fff1f5);border:1px solid #ffd9cc;padding:18px}
.result-box .r-main{font-size:15px;color:var(--ink2);display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap}
.result-box .r-main b{font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.result-box .r-sub{margin-top:12px;display:grid;gap:6px;font-size:13.5px;color:var(--ink2)}
.result-box .r-sub .row{display:flex;justify-content:space-between;gap:8px}
.result-box .r-sub .row span{color:var(--muted)}
.result-hint{margin-top:10px;font-size:13px;color:var(--muted)}
.note{margin-top:22px;font-size:13px;color:var(--muted);background:#f8f9fc;border:1px dashed var(--line);padding:12px 14px;border-radius:10px}
details.formula{margin-top:16px;border:1px solid var(--line);border-radius:12px;background:#fafbfe}
details.formula summary{padding:12px 16px;font-size:13.5px;font-weight:600;color:var(--ink2);cursor:pointer;list-style:none}
details.formula summary::before{content:"▸";margin-right:8px;color:var(--brand)}
details.formula[open] summary::before{content:"▾"}
details.formula .body{padding:0 16px 14px;font-size:13.5px;color:var(--ink2);line-height:1.9}
details.formula code{background:#eef0f6;padding:1px 6px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}
/* ---------- 课程页 ---------- */
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin-top:30px}
.course-card{overflow:hidden;display:flex;flex-direction:column;transition:.18s}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.course-cover{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#233a63,#0f1c33);color:#fff;display:flex;align-items:center;justify-content:center;font-size:40px}
.course-cover .badge{position:absolute;left:12px;top:12px;font-size:12px;font-weight:600;background:rgba(0,0,0,.45);padding:4px 10px;border-radius:999px;backdrop-filter:blur(4px)}
.course-card .body{padding:18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.course-card h3{font-size:17px;font-weight:700}
.course-card p{color:var(--muted);font-size:13.5px;flex:1}
.course-card .row{display:flex;justify-content:space-between;align-items:center}
.lesson-list{margin-top:30px}
.lesson{display:flex;align-items:center;gap:16px;padding:16px 20px;margin-bottom:10px}
.lesson .no{flex:0 0 34px;height:34px;border-radius:10px;background:rgba(255,77,31,.1);color:var(--brand);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
.lesson .info{flex:1}
.lesson .info b{font-size:15.5px}
.lesson .info span{display:block;font-size:13px;color:var(--muted)}
.lesson .time{font-size:13px;color:var(--muted)}
.lock{width:34px;height:34px;border-radius:10px;background:#f1f3f8;display:flex;align-items:center;justify-content:center;color:var(--muted)}
/* ---------- 通用响应式 ---------- */
@media(max-width:900px){
  .nav{gap:10px}
  .nav-links{margin-left:auto;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;max-width:100%}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links a{padding:8px 9px;font-size:13.5px;white-space:nowrap}
  .brand small{display:none}
  .brand{font-size:17px}
}
@media(max-width:860px){
  .hot-head{align-items:flex-start;flex-direction:column;gap:10px}
  .hot-refresh{margin-bottom:0}
  .hero{padding:60px 0 70px}
  .hero .grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .features{grid-template-columns:1fr}
  .nav-links{gap:2px}
  .nav-links a{padding:8px 10px;font-size:14px}
  .section-title{font-size:22px}
  .section{padding:46px 0}
  .tool-grid{grid-template-columns:1fr}
}

/* ---------- 课程大纲页 ---------- */
.member-course-entry{margin-top:28px;padding:22px 26px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;position:relative;overflow:hidden;
  border-color:rgba(190,137,42,.30);background:
    radial-gradient(420px 220px at 100% 0%,rgba(225,178,85,.15),transparent 70%),
    linear-gradient(120deg,#fffdf8,#fffaf0)}
.member-course-entry::after{content:"";position:absolute;right:-60px;top:-80px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(214,166,72,.15),transparent 70%);pointer-events:none}
.mce-icon{position:relative;z-index:1;width:54px;height:54px;flex:0 0 54px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:26px;background:#fff;border:1px solid rgba(190,137,42,.22);box-shadow:0 8px 20px rgba(151,108,35,.10)}
.mce-copy{position:relative;z-index:1;flex:1;min-width:260px}
.mce-copy .eyebrow{color:#a96d0c}
.mce-copy h2{font-size:21px;font-weight:800;margin-top:5px}
.mce-copy p{font-size:14px;color:var(--muted);line-height:1.75;margin-top:5px}
.member-course-entry>.btn{position:relative;z-index:1;white-space:nowrap}
.member-gate{margin-top:30px;padding:34px 36px;display:flex;align-items:center;gap:24px;border-radius:20px;
  border-color:rgba(190,137,42,.28);background:
    radial-gradient(520px 250px at 90% 0%,rgba(225,178,85,.16),transparent 70%),
    linear-gradient(180deg,#fffdf8,#fffaf0)}
.member-gate-icon{width:72px;height:72px;flex:0 0 72px;border-radius:21px;display:flex;align-items:center;justify-content:center;font-size:34px;background:#fff;border:1px solid rgba(190,137,42,.22);box-shadow:0 12px 28px rgba(151,108,35,.12)}
.member-gate-copy{flex:1;min-width:260px}
.member-gate-copy .eyebrow{color:#a96d0c}
.member-gate-copy h2{font-size:25px;font-weight:800;margin-top:7px}
.member-gate-copy p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-top:7px;max-width:720px}
.member-gate-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.member-gate-actions .btn-navy{background:#fff;color:var(--ink2);border:1px solid var(--line)}
.member-gate-actions .btn-navy:hover{background:#f2f4f9;color:var(--ink)}
.outline-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;margin-top:26px;align-items:start}
.outline-side{position:sticky;top:84px;max-height:calc(100vh - 108px);overflow:auto;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.outline-side .searchbox{margin-bottom:12px}
.outline-side .searchbox input{padding:10px 12px 10px 38px;font-size:14px}
.ol-group{margin-bottom:14px}
.ol-group>h4{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--muted);margin:12px 0 6px;padding-left:6px}
.ol-item{display:flex;gap:9px;align-items:flex-start;width:100%;text-align:left;border:none;background:none;padding:9px 10px;border-radius:10px;font-size:13.8px;color:var(--ink2);line-height:1.5;transition:.12s}
.ol-item:hover{background:#f2f4f9}
.ol-item.on{background:rgba(255,77,31,.09);color:var(--brand);font-weight:700}
.ol-item .n{flex:0 0 22px;height:22px;border-radius:7px;background:#eef0f6;color:var(--muted);font-size:11.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}
.ol-item.on .n{background:var(--grad);color:#fff}
.outline-main{padding:32px 34px;min-width:0}
.outline-main .doc-head{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:8px}
.outline-main .doc-head .no-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:1px}
.outline-main h1{font-size:26px;font-weight:800;line-height:1.4;margin:10px 0 8px}
.outline-main .doc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.outline-main .doc-sum{color:var(--ink2);font-size:14.5px;background:#f8f9fc;border-left:3px solid var(--brand);padding:12px 16px;border-radius:0 10px 10px 0;margin-top:18px;line-height:1.85}
.outline-toolbar{display:flex;justify-content:flex-end;gap:10px;margin-top:4px}
.outline-toolbar button{font-size:13px;color:var(--ink2);background:#f1f3f8;border:none;border-radius:9px;padding:7px 14px}
.outline-toolbar button:hover{background:#e7eaf2}
.sec{margin-top:28px;scroll-margin-top:90px}
.sec h3{font-size:17px;font-weight:800;color:var(--navy);padding-left:12px;border-left:4px solid var(--brand);line-height:1.5}
.sec ul{list-style:none;margin-top:12px;display:flex;flex-direction:column;gap:9px}
.sec ul li{position:relative;padding-left:20px;font-size:15px;color:#39404f;line-height:1.85}
.sec ul li::before{content:"";position:absolute;left:6px;top:11px;width:6px;height:6px;border-radius:50%;background:rgba(255,77,31,.55)}
.outline-select{display:none;width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--card);font-size:15px;font-weight:600;margin-top:18px}
.outline-empty{padding:60px;text-align:center;color:var(--muted)}
@media(max-width:920px){
  .member-course-entry{padding:20px;gap:14px}
  .mce-icon{width:48px;height:48px;flex-basis:48px;font-size:23px}
  .mce-copy h2{font-size:18px}
  .member-course-entry>.btn{width:100%}
  .member-gate{padding:24px 20px;gap:16px;align-items:flex-start}
  .member-gate-icon{width:58px;height:58px;flex-basis:58px;font-size:27px;border-radius:17px}
  .member-gate-copy h2{font-size:21px}
  .member-gate-actions .btn{width:100%}
  .outline-layout{grid-template-columns:1fr}
  .outline-side{display:none}
  .outline-select{display:block}
  .outline-main{padding:22px 18px}
  .outline-main h1{font-size:20px}
  .sec h3{font-size:16px}
  .sec ul li{font-size:14.5px}
}
@media print{
  .topbar,.footer,.outline-side,.outline-select,.outline-toolbar,.page-head{display:none!important}
  body{background:#fff}
  .outline-layout{display:block;margin:0}
  .outline-main{border:none;box-shadow:none;padding:0}
}

/* ---------- 视频课程页 ---------- */
.video-tabs{display:flex;gap:10px;margin:30px 0 22px;flex-wrap:wrap}
.video-tabs button{padding:9px 20px;border-radius:999px;border:1px solid var(--line);background:var(--card);font-size:14.5px;font-weight:600;color:var(--ink2);transition:.15s}
.video-tabs button:hover{border-color:rgba(255,77,31,.4)}
.video-tabs button.on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 14px rgba(255,74,31,.28)}
.price{font-size:18px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price-old{font-size:13px;color:var(--muted);text-decoration:line-through;margin-left:6px}
.video-empty{padding:60px 24px;text-align:center;color:var(--muted);max-width:720px;margin:0 auto}
.video-empty b{display:block;font-size:19px;color:var(--ink);margin:14px 0 6px}
.video-empty p{font-size:14.5px;max-width:460px;margin:0 auto}
.course-cover .badge{font-weight:700}
@media(max-width:520px){
  .video-tabs button{padding:8px 14px;font-size:13.5px}
}

/* ---------- 服务页 ---------- */
.svc-jump{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 8px}
.svc-jump-item{padding:8px 16px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink2);transition:.15s}
.svc-jump-item:hover{border-color:rgba(255,77,31,.45);color:var(--brand)}
.svc-jump-item.on{background:var(--grad);color:#fff;border-color:transparent}
.svc-cat{margin-top:38px;scroll-margin-top:84px}
.svc-cat-head{display:flex;gap:14px;align-items:flex-start}
.svc-cat-head .svc-emoji{font-size:30px;line-height:1.2}
.svc-cat-head h2{font-size:22px;font-weight:800}
.svc-cat-head p{color:var(--muted);font-size:14.5px;margin-top:4px}
.svc-groups{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:18px;margin-top:18px;align-items:start}
.svc-group{padding:20px 22px}
.svc-group-head{display:flex;flex-direction:column;gap:4px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:4px}
.svc-group-head h3{font-size:16.5px;font-weight:800;color:var(--navy)}
.svc-group-note{font-size:12.5px;color:var(--muted)}
.svc-rows{display:flex;flex-direction:column}
.svc-row{display:grid;grid-template-columns:1fr auto;gap:3px 14px;padding:11px 0;border-bottom:1px dashed var(--line)}
.svc-row:last-child{border-bottom:none}
.svc-item{font-size:14.5px;color:var(--ink2)}
.svc-price{font-size:14.5px;font-weight:800;color:var(--brand);white-space:nowrap;text-align:right}
.svc-price-note{margin-top:14px;padding:12px 16px;border-radius:12px;background:linear-gradient(120deg,rgba(15,28,51,.045),rgba(255,77,31,.035));border:1px solid rgba(15,28,51,.08);color:var(--ink2);font-size:13.5px;line-height:1.7}
.svc-price-note:not(:empty)::before{content:"💬 ";}
.svc-row-consult{padding-left:7px;padding-right:7px;margin-left:-7px;margin-right:-7px;border-radius:9px;transition:.15s;color:inherit}
.svc-row-consult:hover{background:#f7f9fc}
.svc-row-arrow{font-size:20px;line-height:1;color:#c1c8d6;transition:.15s}
.svc-row-consult:hover .svc-row-arrow{color:var(--brand);transform:translateX(2px)}
.svc-consult em{font-style:normal;color:var(--brand);font-size:16px;line-height:1}
.svc-consult:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.svc-cat-consult{margin-left:auto;flex:0 0 auto;font-size:13px;font-weight:800;color:var(--brand);border:1px solid rgba(255,77,31,.24);border-radius:999px;padding:6px 12px;transition:.16s}
.svc-cat-consult:hover{background:var(--brand);color:#fff;border-color:transparent}
.svc-contact-card{margin-top:30px;padding:32px 36px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  color:#fff;background:
    radial-gradient(480px 260px at 90% 0%,rgba(255,117,52,.22),transparent 65%),
    linear-gradient(120deg,var(--navy) 0%,#1d2f52 100%);
  box-shadow:0 18px 46px rgba(15,28,51,.20)}
.svc-contact-copy{flex:1;min-width:260px}
.svc-contact-copy .eyebrow{color:#ffb36b}
.svc-contact-copy h2{font-size:25px;font-weight:800;line-height:1.35;margin-top:8px}
.svc-contact-copy p{color:#c3cde0;font-size:14.5px;line-height:1.8;margin-top:8px;max-width:600px}
.svc-contact-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.svc-contact-points span{font-size:12.5px;font-weight:700;color:#e6edf9;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 11px}
.svc-contact-qr{display:flex;flex-direction:column;align-items:center;gap:5px;padding:12px 12px 11px;border-radius:18px;background:#fff;color:var(--ink);box-shadow:0 14px 34px rgba(0,0,0,.22)}
.svc-contact-qr img{width:154px;height:154px;object-fit:contain;display:block;cursor:zoom-in;border-radius:8px}
.svc-contact-qr b{font-size:13.5px;font-weight:800}
.svc-contact-qr small{font-size:11.5px;color:var(--muted)}
@media(max-width:700px){
  .svc-contact-card{padding:24px 18px;gap:20px}
  .svc-contact-copy h2{font-size:21px}
  .svc-contact-qr{width:100%;padding:10px}
  .svc-contact-qr img{width:170px;height:170px}
}
.svc-note{grid-column:1/-1;font-size:12.5px;color:var(--muted)}
@media(max-width:560px){
  .svc-groups{grid-template-columns:1fr}
  .svc-cat-head h2{font-size:19px}
}

/* 服务页底部提示 */
.svc-tip{margin-top:26px;padding:16px 20px;border-radius:14px;background:linear-gradient(120deg,#fff5f0,#fff1f5);border:1px solid #ffd9cc;color:var(--ink2);font-size:15px;font-weight:600;text-align:center}

/* ============================================================
   高级质感升级：流光背景（浅色版）
   ------------------------------------------------------------
   用两层缓慢流动的光晕，替代单调的纯色背景。
   想让光更明显/更淡 → 调整下面的 opacity 与 rgba 透明度。
   ============================================================ */
html{background:#f4f6fb;overflow-x:hidden}
body{background:transparent;position:relative;overflow-x:hidden}
body::before{
  content:"";position:fixed;inset:-25vh -25vw;z-index:-1;pointer-events:none;
  background:
    radial-gradient(38vw 38vw at 16% 20%,rgba(255,138,76,.20),transparent 62%),
    radial-gradient(44vw 44vw at 84% 14%,rgba(70,124,255,.18),transparent 62%),
    radial-gradient(36vw 36vw at 76% 82%,rgba(168,120,255,.13),transparent 62%),
    radial-gradient(32vw 32vw at 18% 86%,rgba(255,196,90,.20),transparent 62%);
  filter:blur(46px);
  animation:auroraDrift 42s ease-in-out infinite alternate;
}
body::after{
  content:"";position:fixed;inset:-30%;z-index:-1;pointer-events:none;
  background:conic-gradient(from 0deg at 50% 50%,
    transparent 0deg,rgba(255,255,255,.55) 34deg,transparent 76deg,
    rgba(110,150,255,.16) 150deg,transparent 214deg,
    rgba(255,186,96,.16) 296deg,transparent 360deg);
  filter:blur(72px);opacity:.5;
  animation:slowSpin 80s linear infinite;
}
@keyframes auroraDrift{
  0%{transform:translate3d(-2%,-1%,0) scale(1)}
  50%{transform:translate3d(2%,2%,0) scale(1.07)}
  100%{transform:translate3d(3%,-2%,0) scale(1.03)}
}
@keyframes slowSpin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){body::before,body::after{animation:none}}

/* 卡片：细腻描边 + 顶部高光 + 柔和投影（高级感） */
.card{
  background:linear-gradient(180deg,#ffffff 0%,#fdfdff 100%);
  border:1px solid rgba(22,32,60,.08);
  box-shadow:0 8px 26px rgba(22,32,60,.07),inset 0 1px 0 rgba(255,255,255,.95);
}
.feature:hover,.hot-item:hover,.qa-card.open,.course-card:hover{
  border-color:rgba(255,77,31,.28);
  box-shadow:0 16px 40px rgba(22,32,60,.13),inset 0 1px 0 rgba(255,255,255,.95);
}
.btn-primary{box-shadow:0 8px 20px rgba(255,74,31,.28),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-primary:hover{box-shadow:0 12px 28px rgba(255,74,31,.38),inset 0 1px 0 rgba(255,255,255,.3)}
/* 首屏与页头光带，和整站流光呼应 */
.hero,.page-head,.tools-hero{position:relative;overflow:hidden}
.hero::before,.page-head::before,.tools-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(118deg,transparent 32%,rgba(255,255,255,.10) 46%,transparent 60%);
  background-size:220% 100%;animation:sheen 16s linear infinite;
}
@keyframes sheen{0%{background-position:180% 0}100%{background-position:-120% 0}}

/* ============================================================
   首页专属：虚化背景图（仅首页生效，其他页面不受影响）
   ------------------------------------------------------------
   图片：assets/img/home-bg.jpg
   效果：首屏强烈呈现 → 向下自然淡出成浅色，保证正文清晰
   想更淡/更浓 → 调整 .page-photo 的 filter brightness/opacity，
                以及 ::after 里遮罩的透明度
   ============================================================ */
.page-home{position:relative}
.page-home .page-photo{
  position:absolute;top:0;left:0;right:0;
  height:min(94vh,940px);
  z-index:-3;pointer-events:none;
  overflow:hidden;              /* 裁掉模糊/放大产生的溢出 */
}
/* 图片层单独放，模糊只作用于它，模糊外溢由外层裁掉 */
.page-home .page-photo::before{
  content:"";position:absolute;inset:0;
  background-image:url("../img/home-bg.jpg");
  background-size:cover;background-position:center 42%;background-repeat:no-repeat;
  filter:blur(3px) saturate(1.1) brightness(1.08) contrast(1.04);
  transform:scale(1.02);transform-origin:center center;
}
.page-home .page-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,
    rgba(244,246,251,0) 0%,
    rgba(244,246,251,.16) 38%,
    rgba(244,246,251,.72) 74%,
    #f4f6fb 100%);
}
/* 首屏遮罩：左侧为文字区（加深保证白字清晰），右侧留亮让风景透出来 */
.page-home .hero{
  background:
    linear-gradient(100deg,
      rgba(6,11,22,.82) 0%,
      rgba(8,14,26,.62) 42%,
      rgba(10,18,32,.32) 100%),
    radial-gradient(120% 110% at 10% 42%, rgba(6,11,22,.42), transparent 62%);
}
/* 首屏底部与下方浅色区域自然过渡 */
.page-home .hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:210px;z-index:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(244,246,251,0),#f4f6fb);
}
.page-home .hero .grid{position:relative;z-index:2}
.page-home .hero h1{text-shadow:0 2px 20px rgba(0,0,0,.38)}
.page-home .hero p.lead{text-shadow:0 1px 14px rgba(0,0,0,.3)}
@media(max-width:860px){
  .page-home .page-photo{height:min(88vh,820px)}
  .page-home .page-photo::before{
    background-position:center 30%;
    filter:blur(4px) saturate(1.08) brightness(1.08) contrast(1.03);
  }
  .page-home .hero::after{height:150px}
}

/* ---------- 关于我们 / 服务流程 / 常见问题 / 联系 ---------- */
.about-sec{margin-top:46px;scroll-margin-top:84px}
.about-lead{font-size:16.5px;color:var(--ink2);margin-top:14px;line-height:1.95}
.about-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.about-cols p{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;color:var(--ink2);font-size:15px;box-shadow:var(--shadow);line-height:1.9}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.about-stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 16px;text-align:center;box-shadow:var(--shadow)}
.about-stat b{display:block;font-size:23px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-stat span{font-size:13px;color:var(--muted)}
.todo{background:rgba(255,77,31,.1);color:#d4380d;border:1px dashed rgba(255,77,31,.5);border-radius:6px;padding:1px 6px;font-size:.92em}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:14px;margin-top:22px}
.step{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow);transition:.18s}
.step:hover{transform:translateY(-2px);border-color:rgba(255,77,31,.3)}
.step-no{flex:0 0 34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.step-body b{display:block;font-size:15.5px;margin-bottom:3px}
.step-body span{font-size:13.5px;color:var(--muted);line-height:1.7}
.faq-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.faq-item{padding:0;overflow:hidden}
.faq-item summary{padding:16px 20px;font-size:15.5px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";color:var(--brand);font-weight:800;font-size:17px}
.faq-item[open] summary::after{content:"－"}
.faq-item[open] summary{color:var(--brand)}
.faq-a{padding:0 20px 18px;color:var(--ink2);font-size:14.8px;line-height:1.9;border-top:1px solid var(--line);padding-top:14px;margin:0 0 4px}
.contact-wrap{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:18px;margin-top:22px}
.contact-cards{display:grid;gap:12px}
.contact-card{display:flex;align-items:center;gap:14px;padding:16px 18px}
.cc-icon{font-size:22px}
.cc-label{display:block;font-size:12.5px;color:var(--muted)}
.cc-value{font-size:16px;color:var(--ink)}
.cc-copy{margin-left:auto;border:1px solid var(--line);background:transparent;border-radius:9px;padding:6px 12px;font-size:13px;color:var(--ink2);transition:.15s;flex:0 0 auto}
.cc-copy:hover{border-color:var(--brand);color:var(--brand)}
.qr-box{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;gap:10px}
.qr-ph{width:100%;max-width:170px;aspect-ratio:1;border:2px dashed var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12.5px;color:var(--muted);padding:14px;line-height:1.7}
.qr-tip{font-size:13px;color:var(--muted)}
/* 右侧浮动联系按钮（整站） */
.float-cta{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:60;border-radius:14px 0 0 14px;overflow:hidden;box-shadow:-4px 8px 24px rgba(255,74,31,.32)}
.float-cta a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:13px 11px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;line-height:1.2;transition:.18s}
.float-cta a:hover{filter:brightness(1.08)}
.float-cta a span{font-size:19px}
@media(max-width:860px){
  .about-cols{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr}
  .float-cta{top:auto;bottom:18px;right:14px;transform:none;border-radius:999px}
  .float-cta a{padding:12px 13px}
  .float-cta a em{display:none}
}

/* ============================================================
   首页「关于我们」滑动图集
   —— 无边框、无卡片，边缘羽化融入背景
   ============================================================ */
.aslider-tabs{margin-top:22px}
.aslider-fullbleed{width:100%;margin-top:0}
.aslider-tabs{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:16px}
.as-tab{background:none;border:none;padding:6px 0;font-size:15px;font-weight:600;color:var(--muted);position:relative;cursor:pointer;transition:.2s}
.as-tab::after{content:"";position:absolute;left:0;right:0;bottom:-5px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .28s}
.as-tab:hover{color:var(--ink)}
.as-tab.on{color:var(--brand)}
.as-tab.on::after{transform:scaleX(1)}
.aslider-viewport{position:relative;overflow:hidden;background:transparent;border:none;border-radius:0;box-shadow:none}
.aslider-track{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1);will-change:transform;
  user-select:none;-webkit-user-select:none}
.aslider-viewport{cursor:grab}
.aslider-viewport.dragging{cursor:grabbing}
.aslider-viewport img{user-drag:none;-webkit-user-drag:none;pointer-events:none}
.aslide{flex:0 0 100%;position:relative;height:clamp(260px,34vw,560px);overflow:hidden}
/* 图片/占位块边缘羽化 → 与页面背景融合 */
.aslide > img,.aslide .a-ph{
  -webkit-mask-image:radial-gradient(150% 125% at 50% 50%,#000 78%,rgba(0,0,0,.55) 93%,transparent 100%);
  mask-image:radial-gradient(150% 125% at 50% 50%,#000 78%,rgba(0,0,0,.55) 93%,transparent 100%);
}
.aslide img{width:100%;height:100%;object-fit:cover;display:block}
.a-ph{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:24px;
  background:
    radial-gradient(58% 78% at 18% 22%,rgba(255,120,60,.19),transparent 64%),
    radial-gradient(58% 78% at 82% 28%,rgba(70,124,255,.19),transparent 64%),
    radial-gradient(68% 88% at 58% 88%,rgba(255,196,90,.21),transparent 64%);
}
.a-ph b{font-size:21px;font-weight:800;color:var(--ink)}
.a-ph span{font-size:14px;color:var(--muted);max-width:520px}
.a-ph .a-hint{font-size:12px;color:var(--muted);border:1px dashed var(--line-strong);border-radius:999px;padding:3px 12px;background:rgba(255,255,255,.5)}
.a-cap{position:absolute;left:7%;bottom:12%;max-width:62%;z-index:2}
.a-cap b{display:block;font-size:19px;font-weight:800;color:var(--ink)}
.a-cap span{font-size:14px;color:var(--ink2)}
.as-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;border:none;
  background:rgba(255,255,255,.55);backdrop-filter:blur(6px);color:#22304d;font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:3;transition:.2s;
  box-shadow:0 4px 16px rgba(20,28,48,.10)}
.as-arrow:hover{background:#fff;color:var(--brand)}
.as-arrow:disabled{opacity:0;pointer-events:none}
.as-arrow.prev{left:clamp(14px,3vw,56px)}
.as-arrow.next{right:clamp(14px,3vw,56px)}
.aslider-dots{display:flex;justify-content:center;gap:8px;margin-top:16px}
.as-dot{width:8px;height:8px;border-radius:50%;border:none;background:rgba(21,24,31,.16);cursor:pointer;padding:0;transition:.2s}
.as-dot.on{width:24px;border-radius:999px;background:var(--grad)}
@media(max-width:860px){
  .aslider-tabs{gap:16px;margin-bottom:12px}
  .as-tab{font-size:13.5px}
  .aslide{height:auto;aspect-ratio:4/3}
  .a-ph b{font-size:17px}
  .a-ph span{font-size:13px}
  .as-arrow{width:34px;height:34px;font-size:18px}
  .a-cap b{font-size:16px}
  .a-cap span{font-size:13px}
}

/* ============================================================
   「关于我们」滑动区：边角虚化 + 光影装饰（仍无边框）
   ============================================================ */
/* 1) 边角虚化：外圈做背景模糊，越靠角越虚 */
/* 幻灯片自身不再叠模糊层，避免切换时整块遮罩跟着滑动形成接缝 */
.aslide::after{content:none}
/* 2) 极轻暗角，增加纵深感 */
.aslide::before{content:none}
/* 3) 占位块加光影：斜向流光 + 同心圆装饰 */
.a-ph{position:relative;overflow:hidden}
.a-ph::before{
  content:"";position:absolute;inset:-25% -10%;pointer-events:none;
  background:linear-gradient(112deg,transparent 34%,rgba(255,255,255,.62) 47%,transparent 62%);
  background-size:220% 100%;opacity:.7;animation:asheen 16s linear infinite;
}
.a-ph::after{
  content:"";position:absolute;left:50%;top:50%;width:min(52vw,520px);aspect-ratio:1;border-radius:50%;
  transform:translate(-50%,-50%);pointer-events:none;
  border:1px solid rgba(255,77,31,.16);
  box-shadow:0 0 0 44px rgba(70,124,255,.055),0 0 0 92px rgba(255,196,90,.045);
}
.a-ph > *{position:relative;z-index:2}
@keyframes asheen{0%{background-position:180% 0}100%{background-position:-120% 0}}
/* 4) 滑动区下方一抹柔光，托住画面（不是边框） */
.aslider-fullbleed{position:relative}
.aslider-fullbleed::after{
  content:"";position:absolute;left:8%;right:8%;bottom:-26px;height:64px;pointer-events:none;
  background:radial-gradient(58% 100% at 50% 0%,rgba(255,106,40,.13),transparent 72%);
  filter:blur(14px);
}
@media(prefers-reduced-motion:reduce){.a-ph::before{animation:none}}

/* ============================================================
   滑动区背景（用 3.jpeg 宽幅风景做通栏背景）+ 人物卡片
   ============================================================ */
/* 通栏背景 + 浅色蒙版（保持浅色调、文字可读） */
.aslider-fullbleed{
  background-image:
    linear-gradient(rgba(244,247,250,.10),rgba(244,247,250,.10)),
    url("../img/about/slider-bg-4.jpg");
  background-size:cover;background-position:center 48%;background-repeat:no-repeat;
  background-blend-mode:soft-light,normal;
}
.aslider-fullbleed::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(56% 84% at 70% 50%,rgba(255,252,247,.82) 0%,rgba(255,252,247,.36) 70%,transparent 100%),
    linear-gradient(180deg,rgba(255,252,247,.88) 0%,rgba(255,252,247,.68) 10%,rgba(255,252,247,.38) 46%,rgba(255,252,247,.68) 90%,rgba(255,252,247,.88) 100%);
  -webkit-backdrop-filter:blur(6px) saturate(.94) brightness(1.05);
          backdrop-filter:blur(6px) saturate(.94) brightness(1.05);
}
.aslider-viewport{position:relative;z-index:1}
/* 占位块改为透明，让背景风景透出来 */
.a-ph{background:transparent}
.a-ph::after{box-shadow:0 0 0 44px rgba(255,255,255,.30),0 0 0 92px rgba(255,255,255,.18)}
/* 人物卡片 */
.aslide-person{height:clamp(360px,46vw,640px)}
.person-wrap{
  position:relative;z-index:2;height:100%;
  max-width:1120px;margin:0 auto;padding:32px 20px;
  display:grid;grid-template-columns:minmax(0,clamp(200px,24vw,320px)) minmax(0,1fr);
  gap:clamp(20px,3.6vw,48px);align-items:center;
}
.person-photo{height:100%;min-height:0;display:flex;align-items:center;justify-content:center;overflow:visible}
.person-photo img{
  width:100%;height:340px;max-height:none;object-fit:cover;object-position:62% 30%;
  border:6px solid #fff;border-radius:20px;background:#fff;display:block;
  box-shadow:0 16px 38px rgba(20,28,48,.19),0 2px 8px rgba(20,28,48,.07);
}
.person-info{min-width:0}
.p-role{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--brand);
  background:rgba(255,77,31,.09);border-radius:999px;padding:4px 14px}
.p-name{font-size:clamp(28px,3.2vw,42px);font-weight:800;letter-spacing:2px;margin:12px 0 14px;color:var(--ink)}
.p-points{list-style:none;display:flex;flex-direction:column;gap:9px}
.p-points li{position:relative;padding-left:18px;font-size:clamp(13.5px,1.15vw,15px);line-height:1.7;color:var(--ink2)}
.p-points li::before{content:"";position:absolute;left:2px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--grad)}
.p-quote{margin-top:18px;font-size:clamp(14px,1.2vw,16px);font-weight:800;color:var(--brand);letter-spacing:.5px}
@media(max-width:860px){
  /* 人物卡片：取消固定比例，让高度随内容自适应，避免文字被裁 */
  .aslide-person{height:auto;aspect-ratio:auto}
  .person-wrap{grid-template-columns:1fr;padding:26px 20px 34px;gap:20px;text-align:center;height:auto}
  .person-photo{height:auto;max-height:300px}
  .person-photo img{width:clamp(150px,46vw,210px);height:auto;aspect-ratio:3/4;margin:0 auto;object-fit:cover}
  .p-points li{text-align:left;display:inline-block}
  .p-name{margin:10px 0 12px}
}

/* ============================================================
   首页各区块：风景背景（虚化 + 浅色蒙版，和谐融入）
   ============================================================ */
.band{position:relative;overflow:hidden}
.band::after{
  content:"";position:absolute;inset:-18px;z-index:0;pointer-events:none;
  background-size:cover;background-position:center 46%;background-repeat:no-repeat;
  filter:blur(8px) saturate(1.08) brightness(1.06);
  transform:scale(1.02);
  /* 上下边缘淡出 → 与相邻区块自然相接 */
  -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 15%,#000 85%,transparent 100%);
          mask-image:linear-gradient(180deg,transparent 0%,#000 15%,#000 85%,transparent 100%);
}
.band::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  /* 蒙版更透（背景更明显），且上下边缘同样淡出 */
  background:linear-gradient(180deg,
    rgba(255,255,255,.97) 0%,
    rgba(255,255,255,.80) 8%,
    rgba(255,255,255,.56) 18%,
    rgba(255,255,255,.46) 50%,
    rgba(255,255,255,.56) 82%,
    rgba(255,255,255,.80) 92%,
    rgba(255,255,255,.97) 100%);
}
.band > .container{position:relative;z-index:2}
.band-1::after{background-image:url("../img/bg/band-1.jpg")}
.band-2::after{background-image:url("../img/bg/band-2.jpg")}
.band-3::after{background-image:url("../img/bg/band-3.jpg")}
.band-4::after{background-image:url("../img/bg/band-4.jpg")}
.band-5::after{background-image:url("../img/bg/band-5.jpg")}
.band-6::after{background-image:url("../img/bg/band-6.jpg")}
@media(max-width:860px){
  .band::after{filter:blur(7px) saturate(1.06) brightness(1.07);inset:-12px;
    -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 12%,#000 88%,transparent 100%);
            mask-image:linear-gradient(180deg,transparent 0%,#000 12%,#000 88%,transparent 100%)}
  .band::before{background:linear-gradient(180deg,
    rgba(255,255,255,.98) 0%,rgba(255,255,255,.84) 8%,rgba(255,255,255,.62) 18%,
    rgba(255,255,255,.54) 50%,rgba(255,255,255,.62) 82%,rgba(255,255,255,.84) 92%,rgba(255,255,255,.98) 100%)}
}

/* ============================================================
   课程大纲页改版：顺序列表 + 区域内滚动 + 本讲目录
   ============================================================ */
/* 1) 左侧讲次：序号 + 标题 + 模块标签 */
.ol-txt{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}
.ol-title{font-size:13.8px;line-height:1.45}
.ol-mod{font-size:11px;color:var(--muted)}
.ol-item.on .ol-mod{color:var(--brand);opacity:.9}
.ol-none{padding:20px 8px;color:var(--muted);font-size:14px}
/* 2) 右侧内容：固定高度、内部滚动（桌面端） */
.outline-main{scrollbar-width:thin}
.outline-main::-webkit-scrollbar{width:8px}
.outline-main::-webkit-scrollbar-track{background:transparent}
.outline-main::-webkit-scrollbar-thumb{background:rgba(21,24,31,.16);border-radius:8px}
.outline-main::-webkit-scrollbar-thumb:hover{background:rgba(255,77,31,.45)}
@media(min-width:921px){
  .outline-side{max-height:calc(100vh - 160px)}
  .outline-main{max-height:calc(100vh - 160px);overflow-y:auto;overscroll-behavior:contain;padding:28px 32px}
}
/* 3) 本讲目录 */
.doc-sub{color:var(--muted);font-size:14.5px}
.toc-box{margin-top:20px;padding:16px 18px;border-radius:14px;background:rgba(255,77,31,.04);border:1px solid var(--line)}
.toc-title{font-size:13px;font-weight:700;color:var(--ink2);margin-bottom:10px}
.toc-list{display:flex;flex-wrap:wrap;gap:7px}
.toc-item{font-size:12.5px;padding:5px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink2);cursor:pointer;transition:.15s;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.toc-item:hover{border-color:rgba(255,77,31,.45);color:var(--brand)}
.toc-item.on{background:var(--grad);color:#fff;border-color:transparent}
.sec-wrap{margin-top:22px}
.sec-wrap .sec:first-child{margin-top:0}
/* 4) 回到顶部 */
.to-top{display:block;margin:34px auto 6px;padding:9px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink2);font-size:13px;cursor:pointer;transition:.15s}
.to-top:hover{border-color:rgba(255,77,31,.45);color:var(--brand)}
/* 5) 手机端：不做内部滚动，保持自然页面流 */
@media(max-width:920px){
  .outline-main{max-height:none;overflow:visible;padding:22px 18px}
  .toc-box{margin-top:16px;padding:14px}
}

/* ============================================================
   服务页：主推服务专区（突出显示）+ 价目表对齐优化
   ============================================================ */
.feat-sec{margin-top:30px}
.feat-head{margin-bottom:20px}
.feat-title{font-size:30px;font-weight:800;letter-spacing:.5px;margin-top:8px;color:var(--ink)}
.feat-desc-top{color:var(--muted);font-size:15px;margin-top:6px}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;align-items:stretch}
.feat-card{position:relative;display:flex;flex-direction:column;padding:28px 24px 22px;border-radius:20px;overflow:hidden;
  background:linear-gradient(180deg,#ffffff 0%,#fdfdff 100%);
  border:1px solid rgba(22,32,60,.09);
  box-shadow:0 10px 30px rgba(22,32,60,.08),inset 0 1px 0 rgba(255,255,255,.95);
  transition:.22s}
.feat-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.feat-card::after{content:"";position:absolute;right:-46px;top:-46px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.10),transparent 70%);pointer-events:none}
.feat-card:hover{transform:translateY(-4px);box-shadow:0 20px 46px rgba(22,32,60,.15);border-color:rgba(255,77,31,.3)}
/* VIP 开通：在服务项里独立突出，但仍保持整站浅色高级感 */
.feat-card.is-vip{border-color:rgba(190,137,42,.38);background:
  radial-gradient(260px 160px at 100% 0%,rgba(225,178,85,.13),transparent 70%),
  linear-gradient(180deg,#fffdf8 0%,#fffaf0 100%);
  box-shadow:0 12px 34px rgba(151,108,35,.12),inset 0 1px 0 rgba(255,255,255,.95)}
.feat-card.is-vip::before{background:linear-gradient(90deg,#b87912,#e8bd61,#f5dfaa)}
.feat-card.is-vip::after{background:radial-gradient(circle,rgba(214,166,72,.18),transparent 70%)}
.feat-card.is-vip:hover{border-color:rgba(190,137,42,.62);box-shadow:0 20px 48px rgba(151,108,35,.18)}
.feat-card.is-vip .feat-icon{background:linear-gradient(135deg,rgba(218,171,75,.20),rgba(255,236,179,.35));border-color:rgba(190,137,42,.18)}
.feat-card.is-vip .feat-tag{background:linear-gradient(120deg,#a96d0c,#d9a943);box-shadow:0 4px 12px rgba(179,123,32,.28)}
.feat-card.is-vip .feat-price b{background:linear-gradient(120deg,#a96d0c,#d9a943);-webkit-background-clip:text;background-clip:text}
.feat-card.is-vip .feat-sub{color:#a96d0c}
.feat-card.is-vip .feat-btn{color:#a96d0c;border-color:rgba(190,137,42,.45)}
.feat-card.is-vip .feat-btn:hover{background:linear-gradient(120deg,#a96d0c,#d9a943);color:#fff;border-color:transparent}
.feat-tag{position:absolute;right:16px;top:16px;font-size:11.5px;font-weight:800;letter-spacing:.5px;color:#fff;
  background:var(--grad);padding:3px 11px;border-radius:999px;box-shadow:0 4px 12px rgba(255,74,31,.28)}
.feat-icon{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:26px;
  background:linear-gradient(135deg,rgba(255,90,31,.10),rgba(70,124,255,.08));border:1px solid rgba(22,32,60,.06);margin-bottom:14px}
.feat-name{font-size:19px;font-weight:800;letter-spacing:.3px;color:var(--ink);line-height:1.35}
.feat-price{display:flex;align-items:baseline;gap:6px;margin:12px 0 6px}
.feat-price b{font-size:38px;font-weight:800;line-height:1;letter-spacing:-.5px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.feat-price span{font-size:14px;font-weight:600;color:var(--muted)}
.feat-member{display:inline-flex;align-items:baseline;gap:5px;align-self:flex-start;margin:0 0 8px;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#a96d0c;background:rgba(202,151,52,.11);border:1px solid rgba(190,137,42,.25)}
.feat-member b{font-size:16px;line-height:1;letter-spacing:-.2px}
.feat-member em{font-style:normal;font-size:11.5px;font-weight:600;opacity:.82}
.feat-sub{font-size:13.5px;font-weight:800;color:var(--brand);margin-bottom:8px}
.feat-desc{font-size:13.5px;color:var(--muted);line-height:1.7;flex:1}
.feat-btn{margin-top:16px;align-self:flex-start;font-size:13.5px;font-weight:700;color:var(--brand);
  border:1px solid rgba(255,77,31,.35);border-radius:999px;padding:7px 16px;transition:.18s;text-decoration:none}
.feat-btn:hover{background:var(--grad);color:#fff;border-color:transparent}
.svc-all-head{margin-top:44px}

/* 价目表格：卡片等高、行高一致、价格列对齐 */
.svc-groups{align-items:stretch}
.svc-group{display:flex;flex-direction:column}
.svc-group-head{min-height:56px;justify-content:center}
.svc-rows{flex:1}
.svc-row{min-height:46px;align-items:center}
.svc-price{min-width:104px;font-variant-numeric:tabular-nums}
@media(max-width:860px){
  .feat-grid{grid-template-columns:1fr}
  .feat-title{font-size:24px}
  .feat-price b{font-size:34px}
  .svc-price{min-width:88px}
  .svc-cat-head{flex-wrap:wrap}
  .svc-cat-consult{margin-left:44px;margin-top:-2px}
}

/* ---------- 活动现场照片墙（信任背书） ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;margin-top:22px}
.gal-item{position:relative;display:block;aspect-ratio:1;overflow:hidden;border-radius:14px;cursor:zoom-in;
  border:1px solid var(--line);background:#eceef4;padding:0;box-shadow:0 6px 18px rgba(22,32,60,.08);transition:.2s}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.gal-item:hover{border-color:rgba(255,77,31,.35);box-shadow:0 14px 32px rgba(22,32,60,.16)}
.gal-item:hover img{transform:scale(1.07)}
.gal-zoom{position:absolute;right:10px;bottom:10px;width:30px;height:30px;border-radius:50%;
  background:rgba(10,14,24,.55);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;
  opacity:0;transition:.2s;backdrop-filter:blur(4px)}
.gal-item:hover .gal-zoom{opacity:1}
.gal-lightbox{position:fixed;inset:0;z-index:99;background:rgba(8,12,22,.93);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;padding:24px;cursor:zoom-out}
.gal-lightbox img{max-width:94vw;max-height:84vh;border-radius:12px;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.gal-lightbox .gal-close{position:fixed;right:20px;top:18px;width:40px;height:40px;border-radius:50%;border:none;
  background:rgba(255,255,255,.16);color:#fff;font-size:18px;cursor:pointer}
.gal-lightbox .gal-close:hover{background:rgba(255,255,255,.3)}
.gal-lightbox .gal-hint{color:#c3cee3;font-size:13px}
@media(max-width:560px){
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:9px}
  .gal-item{border-radius:12px}
}

/* ---------- 滑动区：长图完整显示（背景虚化填充） ---------- */
.aslide-contain{display:flex;align-items:center;justify-content:center;overflow:hidden}
.aslide-contain .slide-bg{
  position:absolute;inset:-40px;background-size:cover;background-position:center;background-repeat:no-repeat;
  filter:blur(26px) brightness(.92) saturate(1.05);transform:scale(1.12);opacity:.9;
}
.aslide-contain .fit-contain{
  position:relative;z-index:1;width:auto;height:auto;max-width:min(92%,760px);max-height:88%;
  object-fit:contain;border-radius:12px;box-shadow:0 18px 44px rgba(0,0,0,.28);
  -webkit-mask-image:none;mask-image:none;
}
@media(max-width:860px){
  .aslide-contain .fit-contain{max-width:96%;max-height:92%;border-radius:10px}
  .aslide-contain .slide-bg{filter:blur(20px) brightness(.92)}
}

/* ---------- 滑动区：多张竖图并排 ---------- */
.aslide-row .row-grid{
  position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);
  gap:clamp(10px,1.4vw,20px);height:88%;max-width:min(92%,860px);width:100%;
}
.aslide-row .row-cell{position:relative;overflow:hidden;border-radius:12px;background:#0d1424;
  box-shadow:0 16px 38px rgba(0,0,0,.28);display:flex;align-items:center;justify-content:center}
.aslide-row .row-cell-bg{position:absolute;inset:-30px;background-size:cover;background-position:center;
  filter:blur(22px) brightness(.92);transform:scale(1.14)}
.aslide-row .row-cell .fit-contain{position:relative;z-index:1;max-width:96%;max-height:96%;border-radius:8px;
  box-shadow:none;-webkit-mask-image:none;mask-image:none}
@media(max-width:860px){
  .aslide-row .row-grid{gap:9px;height:90%;max-width:96%}
  .aslide-row .row-cell{border-radius:10px}
}

/* ---------- 视频课封面：显示课程名（无封面图时） ---------- */
.course-cover.has-text{flex-direction:column;gap:8px;padding:20px 18px;text-align:center}
.course-cover .cover-emoji{font-size:34px;line-height:1;opacity:.95}
.course-cover .cover-title{font-size:17px;font-weight:800;letter-spacing:.5px;color:#fff;line-height:1.45;
  max-width:92%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  text-shadow:0 2px 10px rgba(0,0,0,.35)}
@media(max-width:560px){ .course-cover .cover-title{font-size:15.5px} }

/* ---------- 视频课封面：虚化背景 + 大气标题 ---------- */
.course-cover.has-cover{position:relative;overflow:hidden;padding:0}
.course-cover .cover-bg{
  position:absolute;inset:-16px;background-size:cover;background-position:center;background-repeat:no-repeat;
  filter:blur(5px) saturate(1.08) brightness(1.02);transform:scale(1.05);
}
.course-cover .cover-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,24,.10) 0%,rgba(10,14,24,.26) 55%,rgba(10,14,24,.42) 100%);
}
.course-cover .badge{z-index:3}
.course-cover.has-cover .cover-title{position:relative;z-index:2}
/* 大气标题字体：粗宋体 + 宽字距 */
.course-cover .cover-title{
  font-family:"Songti SC","STSong","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  font-weight:700;letter-spacing:3px;
  text-shadow:0 2px 6px rgba(0,0,0,.72),0 6px 26px rgba(0,0,0,.55);
}
.course-cover.has-cover .cover-title{font-size:26px;max-width:86%;line-height:1.5}
.course-cover:not(.has-cover) .cover-title{font-family:"Hiragino Sans GB","PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:1.5px}
@media(max-width:860px){
  .course-cover.has-cover .cover-title{font-size:20px;letter-spacing:2px}
}

/* ============================================================
   视频课程页：会员横幅 + 课程分类
   ============================================================ */
.member-band{
  margin-top:30px;display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:26px;align-items:center;
  padding:26px 30px;border-radius:22px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#1a2233 0%,#243352 55%,#2c3f63 100%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 18px 46px rgba(16,24,44,.28);
}
.member-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,140,60,.28),transparent 68%);pointer-events:none;
}
.mem-badge{display:inline-block;font-size:12px;font-weight:800;letter-spacing:1px;color:#0d1424;
  background:linear-gradient(120deg,#ffd27a,#ffb347);padding:4px 12px;border-radius:999px}
.mem-title{font-size:25px;font-weight:800;color:#fff;margin:12px 0 6px;letter-spacing:.5px}
.mem-desc{font-size:14.5px;color:#c3cee3;line-height:1.7}
.mem-price{display:flex;align-items:baseline;gap:10px;margin:16px 0 12px}
.mem-price b{font-size:44px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#ffd27a,#ff9f43);-webkit-background-clip:text;background-clip:text;color:transparent}
.mem-price span{font-size:14px;color:#a9b8d3}
.mem-benefits{list-style:none;display:flex;flex-direction:column;gap:7px}
.mem-benefits li{position:relative;padding-left:20px;font-size:14px;color:#d3dcec}
.mem-benefits li::before{content:"✓";position:absolute;left:0;top:0;color:#7ee2a8;font-weight:800}
.mem-right{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:10px}
.mem-qr{width:170px;height:170px;object-fit:contain;border-radius:14px;background:#fff;padding:8px}
.mem-qr-empty{width:170px;height:170px;border-radius:14px;border:2px dashed rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;color:#9fb0cc;font-size:13px;line-height:1.7}
.mem-note{font-size:12.5px;color:#9fb0cc;text-align:center;line-height:1.7;max-width:220px}
.video-group{margin-top:44px}
.video-group-title{font-size:20px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:12px;
  padding-left:12px;border-left:4px solid var(--brand);line-height:1.4}
.vg-count{font-size:12.5px;font-weight:600;color:var(--muted);background:rgba(255,255,255,.7);
  border:1px solid var(--line);border-radius:999px;padding:2px 10px}
@media(max-width:860px){
  .member-band{grid-template-columns:1fr;gap:12px;padding:18px 15px;text-align:left}
  .mem-title{font-size:21px;margin:10px 0 4px}
  .mem-desc{font-size:13.5px;line-height:1.65}
  .mem-price{margin:12px 0 10px}
  .mem-price b{font-size:32px}
  .mem-benefits{gap:4px}
  .mem-benefits li{font-size:12.5px}
  .mem-pay-qr{width:96px;height:96px;padding:5px}
  .mem-pay-divider{height:96px}
  .mem-service-qr{width:84px;height:84px;padding:4px}
  .mem-right{align-items:flex-start;gap:8px}
  .video-group{margin-top:32px}
  .video-group-title{font-size:17px}
}

/* ---------- 会员二维码区 ---------- */
.mem-qr-block{display:flex;flex-direction:column;align-items:center;gap:7px;width:100%}
.mem-qr-label{font-size:13px;font-weight:700;color:#e8d9b5;letter-spacing:.5px}
.mem-pay-row{display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:nowrap}
.mem-pay-divider{display:flex;align-items:center;justify-content:center;flex:0 0 auto;color:#8fa0bd;font-size:12px;
  position:relative;height:112px}
.mem-pay-divider::before,.mem-pay-divider::after{content:"";position:absolute;left:50%;width:1px;height:34px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.35),transparent)}
.mem-pay-divider::before{top:6px}
.mem-pay-divider::after{bottom:6px}
.mem-pay-tip{font-size:12.5px;color:#9fb0cc;text-align:center;margin-top:8px;letter-spacing:.3px}
.mem-pay-item{display:flex;flex-direction:column;align-items:center;gap:6px}
.mem-pay-qr{width:112px;height:112px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;cursor:zoom-in;
  box-shadow:0 8px 22px rgba(0,0,0,.25)}
.mem-pay-name{font-size:12.5px;font-weight:700;color:#e8d9b5}
.mem-qr{width:100%;max-width:260px;height:auto;border-radius:12px;background:#fff;padding:6px;cursor:zoom-in;
  box-shadow:0 8px 22px rgba(0,0,0,.25)}
.mem-service-qr{width:132px;height:132px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;cursor:zoom-in;
  box-shadow:0 8px 22px rgba(0,0,0,.25)}
.qr-zoom:hover{transform:scale(1.03);transition:transform .2s}
@media(max-width:860px){
  .mem-pay-row{gap:8px}
  .mem-qr-label{font-size:12px}
  .mem-pay-tip{font-size:11.5px;margin-top:6px}
  .mem-note{font-size:11.5px;max-width:100%}
  .mem-price b{font-size:30px}
  .mem-qr-label{font-size:12px}
}

/* ---------- 会员区：移动端最终覆盖（放在文件末尾，确保生效） ---------- */
@media(max-width:860px){
  .member-band{grid-template-columns:1fr;gap:12px;padding:18px 15px}
  .mem-title{font-size:21px;margin:10px 0 4px}
  .mem-desc{font-size:13.5px;line-height:1.65}
  .mem-price{margin:12px 0 10px}
  .mem-price b{font-size:30px}
  .mem-benefits{gap:4px}
  .mem-benefits li{font-size:12.5px}
  .mem-pay-row{gap:8px;flex-wrap:nowrap}
  .mem-pay-qr{width:96px;height:96px;padding:5px}
  .mem-pay-divider{height:96px}
  .mem-service-qr{width:84px;height:84px;padding:4px}
  .mem-note{font-size:11.5px;max-width:100%}
  .mem-pay-tip{font-size:11.5px;margin-top:6px}
}

/* ---------- 关于我们：Slogan 卡片 ---------- */
.about-slogan{
  margin-top:20px;padding:18px 22px;border-radius:16px;font-size:16.5px;font-weight:700;line-height:1.8;
  color:#fff;background:linear-gradient(120deg,#1a2233,#243352 60%,#2c3f63);
  border:1px solid rgba(255,255,255,.10);box-shadow:0 12px 30px rgba(16,24,44,.20);
  position:relative;overflow:hidden;
}
.about-slogan::before{content:"“";position:absolute;left:12px;top:-6px;font-size:56px;color:rgba(255,255,255,.10);font-family:Georgia,serif}
.about-cols p b{color:var(--ink);font-weight:800}
@media(max-width:860px){ .about-slogan{font-size:15px;padding:16px 18px} }

/* ---------- 会员区：紧凑条 + 购买弹窗 ---------- */
.member-band{
  margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:20px 26px;border-radius:18px;
}
.mem-title{font-size:20px;margin:8px 0 4px}
.mem-desc{font-size:13.5px}
.mem-action{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.mem-action .mem-price{margin:0}
.mem-action .mem-price b{font-size:38px}
.mem-buy{white-space:nowrap;padding:12px 26px}
.pay-modal{position:fixed;inset:0;z-index:120;background:rgba(8,12,22,.92);display:flex;align-items:center;justify-content:center;padding:20px}
.pay-card{position:relative;width:100%;max-width:660px;text-align:center;padding:28px 30px 22px;border-radius:20px;
  background:#141c2c;border:1px solid rgba(255,255,255,.12);box-shadow:0 30px 70px rgba(0,0,0,.5)}
.pay-close{position:absolute;right:14px;top:12px;width:34px;height:34px;border-radius:50%;border:none;
  background:rgba(255,255,255,.12);color:#fff;font-size:16px;cursor:pointer}
.pay-close:hover{background:rgba(255,255,255,.25)}
.pay-title{font-size:21px;color:#fff;font-weight:800}
.pay-title em{font-style:normal;font-size:28px;font-weight:800;
  background:linear-gradient(120deg,#ffd27a,#ff9f43);-webkit-background-clip:text;background-clip:text;color:transparent}
.pay-sub{color:#a9b8d3;font-size:13.5px;margin:6px 0 20px}
.pay-row{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.pay-item{display:flex;flex-direction:column;align-items:center;gap:8px}
.pay-item img{width:132px;height:132px;object-fit:contain;background:#fff;border-radius:12px;padding:6px;cursor:zoom-in;
  box-shadow:0 8px 22px rgba(0,0,0,.3)}
.pay-item b{color:#e8d9b5;font-size:13px;font-weight:700}
.pay-ph{width:132px;height:132px;border-radius:12px;border:2px dashed rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;color:#9fb0cc;font-size:12.5px}
.pay-note{margin-top:20px;color:#9fb0cc;font-size:12.5px;line-height:1.8}
@media(max-width:600px){
  .member-band{padding:16px;gap:14px}
  .mem-title{font-size:18px}
  .mem-action{gap:12px}
  .mem-action .mem-price b{font-size:32px}
  .mem-buy{padding:10px 20px;font-size:14.5px}
  .pay-card{padding:22px 16px 18px}
  .pay-row{gap:10px}
  .pay-item img,.pay-ph{width:94px;height:94px}
  .pay-item b{font-size:12px}
}

/* ---------- 内测预览模式提示条 ---------- */
.preview-bar{
  margin:22px 0 0;padding:12px 18px;border-radius:12px;font-size:14px;color:#7c4a03;
  background:repeating-linear-gradient(135deg,#fff7e6,#fff7e6 10px,#fff0cc 10px,#fff0cc 20px);
  border:1px solid #ffd591;
}
.preview-bar b{color:#ad4e00}
.pv-hint{margin-left:8px;font-size:12.5px;opacity:.75}

/* ---------- 关于我们：企业微信二维码 ---------- */
.qr-img{
  width:100%;max-width:190px;height:auto;display:block;margin:2px auto 10px;border-radius:14px;
  background:#fff;padding:8px;cursor:zoom-in;box-shadow:0 10px 26px rgba(20,28,48,.16);
}
.qr-img:hover{transform:scale(1.02);transition:transform .2s}

/* ============================================================
   短视频文案生成器
   ============================================================ */
.cw-layout{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:22px;margin-top:28px;align-items:start}
.cw-form{padding:26px 24px}
.cw-h2{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:12px}
.cw-form .field input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:11px;background:rgba(9,14,26,.03);outline:none;transition:.15s;font-size:15px}
.cw-form .field input:focus{border-color:rgba(255,77,31,.55);box-shadow:0 0 0 3px rgba(255,77,31,.1);background:#fff}
.cw-styles,.cw-durations{display:flex;flex-wrap:wrap;gap:8px}
.cw-chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink2);cursor:pointer;transition:.15s}
.cw-chip:hover{border-color:rgba(255,77,31,.4)}
.cw-chip.on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 14px rgba(255,74,31,.25)}
.cw-hint{margin:-4px 0 10px;font-size:12.5px;line-height:1.7;color:var(--muted)}
/* 右侧做成“网页里的小窗口”：固定高度，结果在内部滚动 */
.cw-result-wrap{min-width:0;align-self:stretch}
.cw-result{
  position:relative;min-width:0;height:calc(100vh - 132px);min-height:620px;
  display:flex;flex-direction:column;gap:12px;padding:18px 18px 14px;
  border:1px solid rgba(19,29,55,.10);border-radius:20px;
  background:
    radial-gradient(520px 240px at 100% 0%,rgba(255,90,31,.06),transparent 68%),
    linear-gradient(180deg,#ffffff 0%,#fbfcff 100%);
  box-shadow:0 16px 44px rgba(20,28,48,.10),inset 0 1px 0 rgba(255,255,255,.95)
}
.cw-result-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 2px 12px;border-bottom:1px solid var(--line)}
.cw-result-head b{font-size:17px;color:var(--ink)}
.cw-result-head span{display:block;margin-top:3px;font-size:12.5px;color:var(--muted)}
.cw-result-head em{flex:0 0 auto;font-style:normal;font-size:12px;font-weight:700;color:var(--brand);padding:4px 10px;border-radius:999px;background:rgba(255,77,31,.08);border:1px solid rgba(255,77,31,.12)}
.cw-output{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;display:flex;flex-direction:column;gap:14px;padding:14px 5px 8px 2px}
.cw-output::-webkit-scrollbar{width:8px}
.cw-output::-webkit-scrollbar-track{background:transparent}
.cw-output::-webkit-scrollbar-thumb{background:rgba(21,24,31,.16);border-radius:8px}
.cw-output::-webkit-scrollbar-thumb:hover{background:rgba(255,77,31,.45)}
.cw-empty{padding:70px 24px;text-align:center;color:var(--muted);font-size:15px}
.cw-group-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:2px 2px 0;padding:10px 13px;border-radius:12px;font-size:15px;font-weight:800;color:var(--ink);background:rgba(255,77,31,.055);border:1px solid rgba(255,77,31,.10)}
.cw-group-title span{font-size:12.5px;font-weight:700;color:var(--brand)}
.cw-card{position:relative;padding:18px 20px;transition:.16s}
.cw-card:hover{border-color:rgba(255,77,31,.24);box-shadow:0 10px 28px rgba(20,28,48,.09)}
.cw-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:6px}
.cw-card-head h3{font-size:18px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:9px;min-width:0}
.cw-idx{display:inline-flex;align-items:center;justify-content:center;flex:0 0 30px;width:30px;height:30px;border-radius:9px;background:var(--navy);color:#fff;font-size:12px;font-weight:800;letter-spacing:.5px}
.cw-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.cw-toggle,.cw-copy{border-radius:9px;padding:6px 11px;font-size:12.5px;font-weight:700;transition:.15s}
.cw-toggle{background:#fff;border:1px solid var(--line);color:var(--ink2)}
.cw-toggle:hover{border-color:rgba(255,77,31,.45);color:var(--brand)}
.cw-copy{background:var(--grad);border:1px solid transparent;color:#fff;box-shadow:0 5px 12px rgba(255,74,31,.22)}
.cw-copy:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(255,74,31,.32)}
.cw-hook{margin:4px 0 2px;padding:10px 12px;border-radius:10px;background:#f8f9fc;color:var(--ink);font-size:14.5px;font-weight:700;line-height:1.75}
.cw-card[data-open="0"] .cw-rows,.cw-card[data-open="0"] .cw-tips{display:none}
.cw-card[data-open="0"] .cw-hook{cursor:pointer}
.cw-dur{font-size:12px;font-weight:600;color:var(--brand);background:rgba(255,77,31,.09);border-radius:999px;padding:2px 10px}
.cw-desc{font-size:13.5px;color:var(--muted);margin:8px 0 12px}
.cw-rows{display:flex;flex-direction:column}
.cw-row{display:grid;grid-template-columns:74px minmax(0,1fr);gap:14px;padding:12px 0;border-bottom:1px dashed var(--line)}
.cw-row:last-child{border-bottom:none}
.cw-time{font-size:13px;font-weight:800;color:var(--brand);padding-top:2px}
.cw-label{display:inline-block;font-size:12px;font-weight:700;color:var(--ink2);background:#f1f3f8;border-radius:6px;padding:1px 8px;margin-bottom:6px}
.cw-scene{font-size:13.5px;color:var(--muted);line-height:1.7}
.cw-say{font-size:14.5px;color:var(--ink);line-height:1.85;margin-top:4px}
.cw-tips{margin-top:14px;background:#f8f9fc;border:1px dashed var(--line);border-radius:12px;padding:12px 16px}
.cw-tips b{font-size:13px;color:var(--ink2)}
.cw-tips ul{margin:6px 0 0 18px;font-size:13px;color:var(--muted);line-height:1.8}
.cw-note{flex:0 0 auto;max-height:108px;overflow-y:auto;margin-top:0;padding:10px 12px;border-radius:10px}
.cw-result .note code{background:#eef0f6;padding:1px 6px;border-radius:6px;margin-right:4px;font-size:12.5px}
@media(max-width:920px){
  .cw-layout{grid-template-columns:1fr}
  .cw-result-wrap{align-self:start}
  .cw-result{position:static;height:auto;max-height:none;min-height:0;padding:16px}
  .cw-output{max-height:70vh;padding-right:2px}
  .cw-result-head em{display:none}
  .cw-row{grid-template-columns:1fr;gap:4px}
  .cw-idx{flex-basis:28px;width:28px;height:28px;font-size:11px}
  .cw-card-head h3{font-size:16px}
}