/* ============ 木木夕 · 校园青春设计系统 ============ */
:root{
  --blue:#2F6BFF; --blue-d:#1E4FD6;
  --orange:#FF7A45; --yellow:#FFC53D; --mint:#22C2A2;
  --ink:#17223B; --muted:#66708C; --line:#E7ECF5;
  --bg:#F6F8FC; --card:#FFFFFF;
  --r:20px; --shadow:0 10px 30px rgba(23,34,59,.08);
  --shadow-h:0 18px 44px rgba(47,107,255,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(1160px,92%);margin:0 auto}
.ellipse{position:relative;white-space:nowrap}
.ellipse::after{content:"";position:absolute;left:-2%;right:-2%;bottom:2px;height:.42em;
  background:linear-gradient(90deg,var(--yellow),var(--orange));opacity:.35;border-radius:99px;z-index:-1}

/* ============ Header ============ */
.hd{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;gap:34px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.logo .logo-mark{width:36px;height:36px;border-radius:50%;box-shadow:0 2px 10px rgba(150,20,20,.28);flex:none}
.logo small{font-weight:600;color:var(--muted);font-size:12px;margin-left:2px}
nav{display:flex;gap:26px;margin-left:auto}
nav a{font-size:15px;color:var(--muted);font-weight:600;padding:6px 2px;border-bottom:2px solid transparent;transition:.2s}
nav a:hover,nav a.on{color:var(--blue);border-color:var(--blue)}
.hd .cta{background:var(--blue);color:#fff;padding:9px 20px;border-radius:99px;font-weight:700;font-size:14px;
  box-shadow:0 6px 16px rgba(47,107,255,.3);transition:.2s}
.hd .cta:hover{background:var(--blue-d);transform:translateY(-1px)}
.burger{display:none;margin-left:auto;background:none;border:0;font-size:24px;color:var(--ink);cursor:pointer}
.m-nav{display:none;background:#fff;border-bottom:1px solid var(--line);padding:10px 4% 18px}
.m-nav a{display:block;padding:11px 6px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line)}
.m-nav.open{display:block}

/* ============ Hero ============ */
.hero{position:relative;min-height:600px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero .bg{position:absolute;inset:0;background:url("../img/hero-graduation.jpg") center 28%/cover no-repeat}
.hero .mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,20,44,.62),rgba(10,20,44,.28) 45%,rgba(10,20,44,.66))}
.hero .wrap{position:relative;z-index:2;padding:90px 0 110px}
.hero .tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);
  backdrop-filter:blur(6px);padding:7px 16px;border-radius:99px;font-size:14px;font-weight:600;margin-bottom:22px}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.22;font-weight:800;letter-spacing:1px;
  text-shadow:0 4px 24px rgba(0,0,0,.35)}
.hero p.sub{margin:18px 0 34px;font-size:clamp(15px,1.6vw,19px);opacity:.94;max-width:640px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:99px;font-weight:700;font-size:16px;transition:.2s;cursor:pointer;border:0}
.btn-p{background:linear-gradient(135deg,var(--orange),#FF9F45);color:#fff;box-shadow:0 10px 26px rgba(255,122,69,.42)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,122,69,.5)}
.btn-g{background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.55);color:#fff;backdrop-filter:blur(6px)}
.btn-g:hover{background:rgba(255,255,255,.24)}
.hero .facts{display:flex;gap:38px;margin-top:56px;flex-wrap:wrap}
.hero .facts b{font-size:30px;font-weight:800;display:block}
.hero .facts span{font-size:13px;opacity:.85}

/* ============ 区块通用 ============ */
section.blk{padding:84px 0}
.sec-h{text-align:center;margin-bottom:48px}
.sec-h .kicker{display:inline-block;color:var(--blue);font-weight:800;font-size:14px;letter-spacing:3px;margin-bottom:10px}
.sec-h h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:1px}
.sec-h p{color:var(--muted);margin-top:12px;font-size:16px}

/* 主打业务卡片 */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.svc{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-h)}
.svc .ph{height:172px;overflow:hidden}
.svc .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.svc:hover .ph img{transform:scale(1.05)}
.svc .bd{padding:26px 26px 30px;flex:1;display:flex;flex-direction:column}
.svc .chip{align-self:flex-start;font-size:12px;font-weight:700;color:var(--blue);background:#EAF0FF;padding:4px 12px;border-radius:99px}
.svc h3{margin:12px 0 8px;font-size:19px;font-weight:800}
.svc p{color:var(--muted);font-size:13.5px;flex:1}
.svc .more{margin-top:16px;color:var(--blue);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.svc .more:hover{gap:10px;transition:.2s}

/* 学段 */
.stages{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.stage{border-radius:var(--r);padding:34px 30px;color:#fff;position:relative;overflow:hidden;min-height:190px;
  display:flex;flex-direction:column;justify-content:flex-end;box-shadow:var(--shadow)}
.stage::before{content:"";position:absolute;width:190px;height:190px;border-radius:50%;right:-60px;top:-60px;background:rgba(255,255,255,.14)}
.stage b{font-size:24px;font-weight:800}
.stage span{font-size:14px;opacity:.92;margin-top:6px}
.stage.s1{background:linear-gradient(135deg,#2F6BFF,#5E9BFF)}
.stage.s2{background:linear-gradient(135deg,#FF7A45,#FFA645)}
.stage.s3{background:linear-gradient(135deg,#1FB59B,#3ED9BC)}

/* 服务清单 */
.campus{display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:center}
.campus .pic{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-h)}
.campus .pic img{width:100%;height:100%;object-fit:cover}
.campus h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin:6px 0 14px}
.campus p.lead{color:var(--muted);margin-bottom:22px}
.list2{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.list2 .it{display:flex;gap:11px;align-items:flex-start;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:13px 16px;font-size:14.5px;font-weight:600;transition:.2s}
.list2 .it:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.list2 .ic{flex-shrink:0;width:26px;height:26px;border-radius:8px;background:#EAF0FF;color:var(--blue);
  display:grid;place-items:center;font-size:13px;font-weight:800}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:block}
.case:hover{transform:translateY(-6px);box-shadow:var(--shadow-h)}
.case .ph{height:215px;overflow:hidden;background:linear-gradient(135deg,#E8EEFA,#F5F8FF)}
.case .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case:hover .ph img{transform:scale(1.05)}
.case .bd{padding:20px 22px 24px}
.case .meta{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.case .cat{font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:99px}
.case h3{font-size:17px;font-weight:800;line-height:1.45}
.case p{color:var(--muted);font-size:13.5px;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-毕业季{background:#FFEDE4;color:#E2571F}.cat-证件照{background:#EAF0FF;color:#2F6BFF}
.cat-微课{background:#E4F8F1;color:#149A7E}.cat-校园活动{background:#FFF6DC;color:#B7791F}
.cat-校友返校{background:#F3E8FF;color:#7C3AED}.cat-其他{background:#EEF1F6;color:#66708C}
.center{text-align:center;margin-top:44px}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:f}
.step{background:var(--card);border-radius:var(--r);padding:30px 24px;box-shadow:var(--shadow);position:relative;transition:.25s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.step .n{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--mint));color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:16px}
.step h3{font-size:17.5px;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:13.5px}

/* CTA 横幅 */
.cta-band{background:linear-gradient(120deg,#2F6BFF 0%,#22C2A2 100%);border-radius:26px;color:#fff;
  padding:56px 8%;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;box-shadow:var(--shadow-h)}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800}
.cta-band p{opacity:.92;margin-top:8px}
.cta-band .btn{background:#fff;color:var(--blue)}
.cta-band .btn:hover{transform:translateY(-2px)}

/* 页脚 */
.ft{background:#101A30;color:#B9C4DC;margin-top:40px;padding:64px 0 30px;font-size:14px}
.ft .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.ft h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700}
.ft .logo{color:#fff}
.ft a:hover{color:#fff}
.ft .links a{display:block;padding:5px 0;color:#B9C4DC}
.ft .cnt p{padding:4px 0}
.ft .btm{display:flex;justify-content:space-between;gap:14px;padding-top:22px;font-size:12.5px;color:#7C88A6;flex-wrap:wrap}
.ft .btm a{color:#7C88A6}.ft .btm a:hover{color:#fff}
.ft .slogan{margin-top:14px;color:#8FA0C4;font-size:13px}

/* 新闻列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:block}
.news:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.news .ph{height:170px;background:linear-gradient(135deg,#E8EEFA,#F5F8FF)}
.news .ph img{width:100%;height:100%;object-fit:cover}
.news .bd{padding:20px 22px 24px}
.news h3{font-size:16.5px;font-weight:800;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news time{color:var(--muted);font-size:13px;display:block;margin-top:10px}

/* 文章页 */
.article{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:52px clamp(24px,6vw,72px);margin:46px 0}
.article h1{font-size:clamp(24px,3.2vw,34px);font-weight:800;line-height:1.4}
.article .ameta{color:var(--muted);font-size:14px;margin:14px 0 26px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article .body{font-size:16px;color:#2A3552}
.article .body p{margin-bottom:16px;white-space:pre-wrap}
.article .body img{border-radius:14px;margin:18px 0}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.info-cards{display:grid;gap:16px}
.icard{background:var(--card);border-radius:var(--r);padding:24px 26px;box-shadow:var(--shadow);display:flex;gap:16px;align-items:center}
.icard .ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:21px;background:#EAF0FF;flex-shrink:0}
.icard b{display:block;font-size:15.5px}
.icard span{color:var(--muted);font-size:14px;word-break:break-all}
.form-card{background:var(--card);border-radius:var(--r);padding:36px clamp(22px,4vw,42px);box-shadow:var(--shadow)}
.form-card h3{font-size:20px;font-weight:800;margin-bottom:6px}
.form-card .tip{color:var(--muted);font-size:13.5px;margin-bottom:20px}
.fg{margin-bottom:16px}
.fg label{display:block;font-weight:700;font-size:14px;margin-bottom:7px}
.fg input,.fg textarea{width:100%;border:1.5px solid var(--line);border-radius:13px;padding:13px 15px;font-size:15px;
  font-family:inherit;background:#FBFCFE;transition:.2s;color:var(--ink)}
.fg input:focus,.fg textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(47,107,255,.1)}
.fg textarea{min-height:130px;resize:vertical}
.ok-tip{background:#E4F8F1;color:#149A7E;border-radius:12px;padding:12px 16px;font-weight:700;font-size:14px;margin-bottom:14px;display:none}

/* 页头 banner（内页） */
.page-hero{background:linear-gradient(120deg,#1E3E9E 0%,#2F6BFF 55%,#22C2A2 120%);color:#fff;padding:66px 0 60px;
  position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;right:-100px;top:-140px;background:rgba(255,255,255,.1)}
.page-hero h1{font-size:clamp(26px,3.6vw,38px);font-weight:800;position:relative;z-index:2}
.page-hero p{opacity:.92;margin-top:10px;position:relative;z-index:2}

/* 关于页 */
.about-lead{font-size:17.5px;color:#2A3552;max-width:820px;margin:0 auto;text-align:center}
.about-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:44px}
.acard{background:var(--card);border-radius:var(--r);padding:26px 20px;box-shadow:var(--shadow);transition:.25s}
.acard:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.acard .ic{width:44px;height:44px;border-radius:13px;background:#EAF0FF;display:grid;place-items:center;font-size:20px;margin-bottom:13px}
.acard h3{font-size:16px;font-weight:800;margin-bottom:7px}
.acard p{color:var(--muted);font-size:13px}
.about-img{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-h);margin-top:52px}

/* 筛选 tabs */
.tabs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.tab{padding:9px 22px;border-radius:99px;border:1.5px solid var(--line);background:#fff;font-weight:700;font-size:14px;
  color:var(--muted);cursor:pointer;transition:.2s}
.tab:hover{border-color:var(--blue);color:var(--blue)}
.tab.on{background:var(--blue);border-color:var(--blue);color:#fff}

/* 动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* 后台 */
.adm{max-width:1120px;margin:26px auto;padding:0 4%}
.adm-hd{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.adm-hd h1{font-size:22px;font-weight:800}
.adm-hd .sp{flex:1}
.adm-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.adm-tab{padding:9px 20px;border-radius:99px;border:1.5px solid var(--line);background:#fff;font-weight:700;font-size:14px;cursor:pointer;color:var(--muted)}
.adm-tab.on{background:var(--ink);border-color:var(--ink);color:#fff}
.adm-card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:26px clamp(18px,3vw,32px);margin-bottom:22px}
.adm-card h3{font-size:17px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.adm-card h3 .badge{background:#FFEDE4;color:#E2571F;font-size:12px;padding:2px 10px;border-radius:99px}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;color:var(--muted);font-weight:600;padding:10px 8px;border-bottom:2px solid var(--line);white-space:nowrap}
.tbl td{padding:12px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl img.cover{width:74px;height:50px;object-fit:cover;border-radius:8px;background:#EEF1F6}
.btn-s{padding:7px 14px;border-radius:9px;border:1.5px solid var(--line);background:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:.2s;margin-right:6px}
.btn-s:hover{border-color:var(--blue);color:var(--blue)}
.btn-s.danger:hover{border-color:#E5484D;color:#E5484D}
.btn-s.pri{background:var(--blue);border-color:var(--blue);color:#fff}
.sw{position:relative;width:38px;height:22px;display:inline-block}
.sw input{opacity:0;width:0;height:0}
.sw i{position:absolute;inset:0;background:#CBD5E4;border-radius:99px;transition:.2s;cursor:pointer}
.sw i::after{content:"";position:absolute;width:16px;height:16px;border-radius:50%;background:#fff;top:3px;left:3px;transition:.2s}
.sw input:checked+i{background:var(--mint)}
.sw input:checked+i::after{left:19px}
.login-box{max-width:380px;margin:80px auto;background:#fff;border-radius:var(--r);box-shadow:var(--shadow-h);padding:40px 36px}
.login-box h1{font-size:22px;font-weight:800;margin-bottom:6px}
.login-box .tip{color:var(--muted);font-size:13.5px;margin-bottom:22px}
.img-pick{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.img-pick .ip{width:86px;height:60px;border-radius:9px;object-fit:cover;border:2px solid var(--line);cursor:pointer}
.img-pick .ip.on{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,107,255,.15)}
.gal{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.gal .g{position:relative;width:92px;height:64px;border-radius:9px;overflow:hidden}
.gal .g img{width:100%;height:100%;object-fit:cover}
.gal .g button{position:absolute;top:2px;right:2px;background:rgba(0,0,0,.55);color:#fff;border:0;border-radius:6px;
  width:20px;height:20px;font-size:11px;cursor:pointer;line-height:1}

/* ============ 品牌音乐播放器 ============ */
.mp{position:fixed;right:22px;bottom:22px;z-index:200;display:flex;align-items:flex-end;gap:12px;flex-direction:column}
.mp-btn{width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--mint));color:#fff;font-size:22px;
  box-shadow:0 10px 26px rgba(47,107,255,.4);transition:.25s;display:grid;place-items:center;position:relative}
.mp-btn:hover{transform:scale(1.07)}
.mp-btn::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(47,107,255,.35);
  animation:pulse 2.4s infinite;opacity:0}
.mp.playing .mp-btn::after{opacity:1}
@keyframes pulse{0%{transform:scale(.9);opacity:.7}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
.mp.playing .mp-btn{animation:spin 6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.mp-panel{width:268px;background:#fff;border-radius:18px;box-shadow:0 16px 44px rgba(23,34,59,.2);padding:16px 18px 18px;
  opacity:0;transform:translateY(10px) scale(.96);pointer-events:none;transition:.25s;transform-origin:bottom right}
.mp.open .mp-panel{opacity:1;transform:none;pointer-events:auto}
.mp-head{display:flex;gap:11px;align-items:center;margin-bottom:13px}
.mp-note{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#FFE9C9,#FFD3A8);display:grid;place-items:center;font-size:18px}
.mp-head b{display:block;font-size:14px;line-height:1.35}
.mp-head i{font-style:normal;color:var(--muted);font-size:11.5px}
.mp-bar{height:6px;border-radius:99px;background:#EAF0FA;overflow:hidden;cursor:pointer}
.mp-prog{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--mint));transition:width .2s linear}
.mp-times{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin-top:6px}
.mp-ctrl{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:8px}
.mp-ctrl button{background:none;border:0;cursor:pointer;font-size:17px;color:var(--muted);transition:.2s}
.mp-ctrl button:hover{color:var(--blue)}
.mp-ctrl .big{width:42px;height:42px;border-radius:50%;background:var(--blue);color:#fff;font-size:16px;display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(47,107,255,.35)}
.mp-ctrl .big:hover{background:var(--blue-d);color:#fff}
.mp-hint{position:absolute;right:64px;bottom:8px;background:#17223B;color:#fff;font-size:12.5px;padding:9px 14px;
  border-radius:11px;white-space:nowrap;box-shadow:var(--shadow);opacity:0;transition:.4s;pointer-events:none}
.mp-hint.show{opacity:1}
.mp-hint::after{content:"";position:absolute;right:-5px;bottom:14px;width:10px;height:10px;background:#17223B;transform:rotate(45deg)}

/* 响应式 */
@media (max-width:960px){
  nav,.hd .cta{display:none}
  .burger{display:block}
  .logo{font-size:17px;gap:8px}
  .logo .logo-mark{width:26px;height:26px}
  .logo small{font-size:11px}
  .svc-grid,.case-grid,.news-grid,.stages,.flow{grid-template-columns:1fr 1fr}
  .about-cards{grid-template-columns:1fr 1fr}
  .campus,.contact-grid{grid-template-columns:1fr}
  .ft .grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  section.blk{padding:56px 0}
  .svc-grid,.case-grid,.news-grid,.stages,.flow,.about-cards,.list2{grid-template-columns:1fr}
  .ft .grid{grid-template-columns:1fr}
  .hero{min-height:520px}
  .hero .facts{gap:22px}
  .article{padding:34px 22px}
  .tbl .hide-m{display:none}
  /* 手机端头部 logo 收紧一档 */
  .logo{font-size:16px;gap:7px}
  .logo .logo-mark{width:24px;height:24px}
  .logo small{font-size:10.5px}
}

/* ============ 加微信：悬浮按钮 + 弹窗 + 横幅 ============ */
.wxfab{position:fixed;left:18px;bottom:18px;z-index:130;display:flex;align-items:center;gap:7px;
  background:linear-gradient(135deg,#22C55E,#16A34A);color:#fff;border:none;border-radius:99px;
  padding:12px 17px;font-size:14px;font-weight:700;letter-spacing:.5px;cursor:pointer;
  box-shadow:0 10px 26px rgba(34,197,94,.42);transition:.2s}
.wxfab:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(34,197,94,.5)}
.wxmodal{position:fixed;inset:0;z-index:220;display:none}
.wxmodal.show{display:block}
.wxmodal-bg{position:absolute;inset:0;background:rgba(15,23,42,.58);backdrop-filter:blur(4px)}
.wxmodal-box{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;
  border-radius:22px;padding:14px 14px 8px;width:min(76vw,360px);max-height:88vh;overflow:auto;
  box-shadow:0 30px 80px rgba(0,0,0,.35);text-align:center;animation:wxin .22s ease}
@keyframes wxin{from{opacity:0;transform:translate(-50%,-46%) scale(.96)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
.wxmodal-box img{border-radius:14px;width:100%}
.wxmodal-box p{font-size:12.5px;color:var(--muted);padding:9px 2px 6px}
.wxmodal-x{position:absolute;top:-13px;right:-13px;width:34px;height:34px;border-radius:50%;border:none;
  background:#fff;color:var(--ink);font-size:15px;cursor:pointer;box-shadow:var(--shadow)}
.ft .ft-wx{display:inline-block;margin-top:2px;color:var(--blue);font-weight:700;font-size:13.5px;cursor:pointer}
.ft .ft-wx:hover{text-decoration:underline}
.wx-banner{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
  background:linear-gradient(135deg,#F0F6FF,#EAFBF5);border:1px solid var(--line);
  border-radius:var(--r);padding:36px 40px;margin-top:30px;box-shadow:var(--shadow)}
.wx-banner h3{font-size:22px;font-weight:800;margin:8px 0 10px}
.wx-banner p{color:var(--muted);font-size:14.5px;max-width:580px}
.wx-banner .wx-no{margin-top:12px;color:var(--ink);font-size:14px}
.wx-banner .wx-no b{color:var(--blue);letter-spacing:.5px}
.wx-qr{width:192px;border-radius:16px;box-shadow:var(--shadow-h)}
@media (max-width:720px){
  .wx-banner{grid-template-columns:1fr;text-align:center;padding:28px 22px;gap:22px}
  .wx-banner p{margin:0 auto;max-width:100%}
  .wx-qr{margin:0 auto;width:168px}
  .wxfab{left:14px;bottom:14px;padding:11px 14px}
}

/* ============ 软导航进度条（切页时顶部细线） ============ */
.nav-bar{position:fixed;left:0;top:0;height:3px;width:0;z-index:300;opacity:0;pointer-events:none;
  background:linear-gradient(90deg,var(--blue),var(--mint));
  box-shadow:0 0 10px rgba(47,107,255,.45);transition:width .3s,opacity .3s}

/* ============ 播放器面板：最小化按钮 ============ */
.mp-head{position:relative;padding-right:30px}
.mp-min{position:absolute;top:-4px;right:-6px;width:32px;height:32px;border-radius:50%;border:0;
  background:#F1F5FD;color:#5B6B85;font-size:16px;line-height:1;cursor:pointer;
  display:grid;place-items:center;padding:0 0 3px;transition:.18s;touch-action:manipulation}
.mp-min:hover{background:#E3ECFB;color:var(--blue)}
.mp-min:active{transform:scale(.92)}
@media (max-width:640px){
  .mp-min{width:36px;height:36px;font-size:18px;top:-6px;right:-8px}
  .mp-panel{width:min(280px,calc(100vw - 44px))}
}