/* ============================================================
   UKAssignment 学术辅导平台 - 样式表
   配色：藏青 + 古铜金  |  布局：纵向流式 / 卡片化
   引用：<link rel="stylesheet" href="/skin/index.css">
   ============================================================ */

  :root{
    --navy-950:#0a1628;
    --navy-900:#0d1b2e;
    --navy-800:#162a44;
    --navy-700:#1e3a5f;
    --navy-600:#264873;
    --gold-700:#8a6d3b;
    --gold-600:#a07d44;
    --gold-500:#b08d57;
    --gold-400:#c9a961;
    --gold-300:#dcc28a;
    --cream:#faf7f0;
    --paper:#fbf9f3;
    --ink:#1a2847;
    --muted:#6b7a8f;
    --line:#e4ddcf;
    --card:#ffffff;
    --shadow:0 20px 60px rgba(13,27,46,.14);
    --shadow-gold:0 18px 44px rgba(176,141,87,.22);
    --radius:20px;
    --radius-sm:14px;
    --max:1180px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Georgia","Times New Roman","Songti SC","SimSun",serif;
    color:var(--ink);
    background:var(--cream);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
    background:
      radial-gradient(circle at 8% 6%,rgba(176,141,87,.08),transparent 30%),
      radial-gradient(circle at 92% 90%,rgba(30,58,95,.07),transparent 32%);
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;height:auto}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
  .sans{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}

  /* ===== 顶部信息条（始终固定） ===== */
  .top-strip{
    position:sticky;top:0;z-index:60;
    background:var(--navy-900);color:#cfd8e3;
    font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif;
    border-bottom:1px solid rgba(176,141,87,.25);
  }
  .top-strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:38px}
  .top-info{display:flex;align-items:center;gap:12px;font-family:-apple-system,"PingFang SC",sans-serif;flex-wrap:wrap}
  .top-info strong{color:var(--gold-400);font-weight:700;letter-spacing:.5px}
  .top-info .sep{color:rgba(220,194,138,.4)}
  .top-info .ti-item{display:inline-flex;align-items:center;gap:5px;white-space:nowrap;color:#cfd8e3}
  .top-info .ti-item svg,.top-info .ti-item img{width:13px;height:13px;fill:var(--gold-400);flex:none}
  .top-strip .soc{display:flex;gap:10px;align-items:center}
  .top-strip .soc a{padding:4px 12px;border:1px solid rgba(176,141,87,.3);border-radius:999px;color:#cfd8e3;transition:.2s;font-family:-apple-system,"PingFang SC",sans-serif;font-size:12px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
  .top-strip .soc a svg,.top-strip .soc a img{width:13px;height:13px;fill:var(--gold-400)}
  .top-strip .soc a:hover{background:rgba(176,141,87,.18);color:#fff;border-color:var(--gold-500)}

  /* ===== 站点头部 ===== */
  .site-header{
    position:sticky;top:38px;z-index:50;
    background:rgba(250,247,240,.78);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);
    transition:background .3s,box-shadow .3s,backdrop-filter .3s;
  }
  .site-header.scrolled{
    background:rgba(250,247,240,.94);
    backdrop-filter:saturate(180%) blur(18px);
    box-shadow:0 10px 30px rgba(13,27,46,.08);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:16px}
  .logo{display:flex;flex-direction:column;line-height:1.2;font-weight:700;color:var(--navy-900);gap:3px;flex-shrink:0}
  .logo-top{display:flex;align-items:center;gap:10px}
  .logo-badge{
    width:40px;height:40px;border-radius:11px;display:grid;place-items:center;color:#fff;
    background:linear-gradient(145deg,var(--navy-800),var(--navy-600));
    border:1px solid var(--gold-500);box-shadow:var(--shadow-gold);
    font-family:Georgia,serif;font-weight:700;letter-spacing:.5px;flex:none;
  }
  .logo b{font-size:19px;font-family:Georgia,serif;letter-spacing:.3px}
  .logo small{display:block;color:var(--gold-700);font-size:11px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;font-family:-apple-system,sans-serif}
  .nav-links{display:flex;align-items:center;gap:18px;font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif;color:var(--navy-800);font-weight:600;flex:1;justify-content:center;min-width:0;white-space:nowrap}
  .nav-links > a,.nav-head > a{position:relative;padding:4px 0;transition:color .2s;white-space:nowrap}
  .nav-links > a::after,.nav-head > a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold-500);transition:width .3s}
  .nav-links > a:hover,.nav-head > a:hover{color:var(--gold-700)}
  .nav-links > a:hover::after,.nav-head > a:hover::after{width:100%}
  /* 当前栏目导航项高亮（论文价格/留学生作业/留学生论文页） */
  .nav-links > a.is-on{color:var(--gold-700)}
  .nav-links > a.is-on::after{width:100%}
  /* 地区页：地区入口触发器高亮 + 下拉内当前地区标识 */
  .nav-item.is-on .nav-region{color:var(--gold-700)}
  .nav-item.is-on .nav-region::after{width:100%}
  .nav-item .dropdown a[aria-current="page"]{color:var(--gold-700);font-weight:600}
  .mobile-drop a[aria-current="page"]{color:var(--gold-700);font-weight:700}
  .mp-links a.is-on{color:var(--gold-700);font-weight:600}
  .nav-item{position:relative}
  .nav-head{display:flex;align-items:center;gap:2px}
  .nav-head > a{flex:1}
  .nav-arrow{font-size:9px;opacity:.5;margin-left:3px}
  .nav-caret{display:none;background:none;border:none;color:var(--navy-800);cursor:pointer;font-size:13px;padding:4px 8px;line-height:1}
  .dropdown{
    position:absolute;top:calc(100% + 10px);left:50%;
    transform:translateX(-50%) translateY(8px);
    min-width:180px;background:#fff;border:1px solid var(--line);border-radius:12px;
    box-shadow:0 18px 40px rgba(13,27,46,.14);padding:8px;
    display:flex;flex-direction:column;gap:2px;z-index:60;
    opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;
  }
  .nav-item:hover > .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
  .nav-item.expanded > .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
  .nav-head > a.nav-region{cursor:pointer}
  .dropdown a{padding:9px 14px;border-radius:8px;font-size:13px;font-weight:500;white-space:nowrap;color:var(--navy-800);transition:background .2s,color .2s}
  .dropdown a:hover{background:var(--cream);color:var(--gold-700)}
  .nav-right{display:flex;align-items:center;gap:10px;flex-wrap:nowrap;flex-shrink:0}
  .nav-right .btn{padding:0 16px;font-size:14px;white-space:nowrap}
  .menu-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:40px;height:40px;background:none;border:1px solid var(--gold-500);border-radius:10px;cursor:pointer;padding:0 10px;flex:none}
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--navy-800);border-radius:2px;transition:transform .3s,opacity .3s}
  .menu-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .menu-toggle.active span:nth-child(2){opacity:0}
  .menu-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  /* ===== 按钮 ===== */
  .btn{
    position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:999px;font-weight:700;font-size:15px;
    border:1px solid transparent;cursor:pointer;overflow:hidden;transition:transform .2s,box-shadow .25s;
    font-family:-apple-system,"PingFang SC",sans-serif;letter-spacing:.3px;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
    color:#fff;border-color:var(--gold-500);box-shadow:var(--shadow-gold);
  }
  .btn-primary::before{
    content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
    background:linear-gradient(120deg,transparent,rgba(220,194,138,.55),transparent);
    transform:skewX(-20deg);transition:left .6s ease;
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 50px rgba(176,141,87,.32)}
  .btn-primary:hover::before{left:140%}
  .btn-gold{
    background:linear-gradient(135deg,var(--gold-600),var(--gold-400));color:var(--navy-900);
    box-shadow:0 14px 30px rgba(176,141,87,.3);
  }
  .btn-gold::before{
    content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
    background:linear-gradient(120deg,transparent,rgba(255,255,255,.5),transparent);
    transform:skewX(-20deg);transition:left .6s ease;
  }
  .btn-gold:hover{transform:translateY(-2px)}
  .btn-gold:hover::before{left:140%}
  .btn-outline{border-color:var(--gold-500);background:transparent;color:var(--navy-800)}
  .btn-outline:hover{background:rgba(176,141,87,.1);color:var(--gold-700)}

  /* ===== 装饰漂浮元素 ===== */
  .deco{position:absolute;pointer-events:none;opacity:.5;z-index:0}
  .deco.float-1{top:8%;right:6%;animation:float1 9s ease-in-out infinite}
  .deco.float-2{bottom:10%;left:4%;animation:float2 11s ease-in-out infinite}
  .deco.float-3{top:40%;right:12%;animation:float1 13s ease-in-out infinite reverse}
  @keyframes float1{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-22px) rotate(8deg)}}
  @keyframes float2{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(18px) rotate(-6deg)}}

  /* ===== 首屏英雄区 ===== */
  .hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(135deg,var(--navy-950) 0%,var(--navy-800) 55%,var(--navy-700) 100%)}
  .hero::before{
    content:"";position:absolute;inset:0;opacity:.6;
    background:
      radial-gradient(circle at 15% 20%,rgba(176,141,87,.22),transparent 28%),
      radial-gradient(circle at 88% 12%,rgba(201,169,97,.16),transparent 26%);
  }
  .hero::after{
    content:"";position:absolute;inset:auto -10% -30% auto;width:560px;height:560px;border-radius:50%;
    border:1px solid rgba(220,194,138,.14);
  }
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;padding:0px 24px 80px;position:relative;z-index:1;max-width:var(--max);margin:0 auto}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;padding:8px 16px;
    border:1px solid rgba(220,194,138,.4);border-radius:999px;background:rgba(220,194,138,.1);
    color:var(--gold-300);font-weight:600;font-size:13px;letter-spacing:1px;text-transform:uppercase;
    font-family:-apple-system,sans-serif;margin-bottom:20px;
  }
  /* eyebrow 作为面包屑容器（除首页外） */
  .eyebrow.is-crumbs{text-transform:none;letter-spacing:0;gap:6px}
  .eyebrow.is-crumbs a{color:var(--gold-300);transition:color .2s}
  .eyebrow.is-crumbs a:hover{color:#fff}
  .eyebrow.is-crumbs .sep{color:rgba(220,194,138,.55)}
  .eyebrow.is-crumbs [aria-current="page"]{color:#fff;font-weight:700}
  /* 面包屑过长隐藏：链接与分隔符不收缩不换行，只让当前项（末项，最长）单行省略 */
  .eyebrow.is-crumbs{max-width:100%}
  .eyebrow.is-crumbs a,.eyebrow.is-crumbs .sep{white-space:nowrap;flex:none}
  .eyebrow.is-crumbs [aria-current="page"]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
  .eyebrow.is-crumbs [aria-current="page"]:hover{overflow:visible}
  .hero h1{
    margin:0;font-size:clamp(32px,4.6vw,56px);line-height:1.16;letter-spacing:-1px;font-family:Georgia,"Songti SC",serif;
  }
  .hero h1 em{font-style:normal;color:var(--gold-400);position:relative}
  .hero h1 em::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--gold-500);opacity:.6}
  .hero .h1-sub{
    margin:0;font-size:clamp(32px,4.6vw,56px);line-height:1.16;letter-spacing:-1px;font-family:Georgia,"Songti SC",serif;
  }
  .hero .h1-sub em{font-style:normal;color:var(--gold-400);position:relative}
  .hero .h1-sub em::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--gold-500);opacity:.6}
  .hero p.lead{color:#cdd6e3;font-size:17px;margin:22px 0 0;max-width:600px;font-family:-apple-system,"PingFang SC",sans-serif}
  .stage-line{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
  .stage-pill{
    display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;
    background:rgba(255,255,255,.07);border:1px solid rgba(220,194,138,.28);
    color:#e8e4d8;font-size:13px;font-weight:600;font-family:-apple-system,sans-serif;transition:.25s;
  }
  .stage-pill:hover{background:rgba(176,141,87,.2);border-color:var(--gold-400);transform:translateY(-2px)}
  .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:30px}
  .trust-line{margin-top:28px;display:flex;gap:30px;flex-wrap:wrap;color:#aeb8c6;font-size:13px;font-family:-apple-system,sans-serif}
  .trust-line b{display:block;color:var(--gold-400);font-size:26px;line-height:1.1;font-family:Georgia,serif}
  .hero-panel{
    background:rgba(251,249,243,.97);color:var(--ink);border-radius:24px;padding:26px;
    box-shadow:0 30px 80px rgba(0,0,0,.3);border:1px solid rgba(220,194,138,.5);
  }
  .badge-live{background:var(--navy-900);color:var(--gold-300);font-weight:700;border-radius:999px;padding:7px 13px;font-size:12px;letter-spacing:.5px}
  .contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
  .qr-card{
    padding:12px 8px;border:1px solid var(--line);border-radius:14px;background:#fff;text-align:center;
    box-shadow:0 8px 24px rgba(13,27,46,.06);transition:.25s;
  }
  .qr-card:hover{transform:translateY(-4px);border-color:var(--gold-400)}
  .qr-img{
    display:block;width:160px;height:160px;margin:0 auto 6px;border-radius:10px;
    object-fit:cover;
    border:1px solid var(--line);
  }
  .qr-card strong{display:block;color:var(--navy-900);font-size:13px;font-family:-apple-system,sans-serif}
  .qr-card span{display:block;color:var(--muted);font-size:11px;word-break:break-all;font-family:-apple-system,sans-serif}
  .quick-form,.panel-seo{margin-top:16px;padding:16px;background:linear-gradient(180deg,var(--cream),#fff);border:1px solid var(--line);border-radius:16px}
  .quick-form h3,.panel-seo h3{margin:0 0 10px;color:var(--navy-900);font-size:16px;font-family:-apple-system,"PingFang SC",sans-serif}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .field{border:1px solid var(--line);border-radius:10px;padding:11px 12px;background:#fff;color:#4f6077;font-size:13px;font-family:-apple-system,sans-serif}
  .full{grid-column:1/-1}
  .panel-actions{display:flex;align-items:center;gap:10px;margin-top:12px}
  .panel-actions .btn{flex:1;min-height:38px;padding:0 12px;font-size:13px;white-space:nowrap}
  .panel-more{position:relative;margin-top:8px;overflow:visible}
  .panel-more::before{border-radius:999px}
  .panel-more .badge-live{
    position:absolute;top:-9px;right:-6px;padding:3px 9px;font-size:10px;letter-spacing:.3px;
    box-shadow:0 4px 10px rgba(13,27,46,.18);pointer-events:none;z-index:2;
  }
  .panel-seo p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.85;font-family:-apple-system,"PingFang SC",sans-serif}
  .panel-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
  .panel-tags span{
    font-size:11px;padding:4px 11px;border-radius:999px;color:var(--gold-700);
    border:1px solid rgba(176,141,87,.45);background:rgba(176,141,87,.08);
    font-family:-apple-system,"PingFang SC",sans-serif;letter-spacing:.3px;
  }

  /* ===== 通用 section ===== */
  section{padding:80px 0;position:relative}
  .section-head{max-width:780px;margin:0 auto 40px;text-align:center}
  .kicker{color:var(--gold-600);font-weight:700;letter-spacing:.18em;text-transform:uppercase;font-size:12px;font-family:-apple-system,sans-serif;display:inline-block;padding-bottom:6px;border-bottom:2px solid var(--gold-500)}
  h2.title{font-size:clamp(26px,3.4vw,40px);line-height:1.22;margin:14px 0 12px;color:var(--navy-900);letter-spacing:-.5px;font-family:Georgia,"Songti SC",serif}
  .section-head p{color:var(--muted);margin:0;font-size:16px;font-family:-apple-system,"PingFang SC",sans-serif}
  .soft{background:var(--paper)}
  .divider-orn{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--gold-500);margin:8px 0 0}
  .divider-orn::before,.divider-orn::after{content:"";width:40px;height:1px;background:var(--gold-500);opacity:.5}

  /* ===== 卡片通用 ===== */
  .cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
    box-shadow:0 14px 40px rgba(13,27,46,.06);transition:transform .3s,box-shadow .3s,border-color .3s;
    position:relative;overflow:hidden;
  }
  .card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--gold-600),var(--gold-400));transform:scaleX(0);transform-origin:left;transition:transform .35s}
  .card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--gold-400)}
  .card:hover::before{transform:scaleX(1)}
  .icon{
    width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
    background:linear-gradient(145deg,var(--navy-800),var(--navy-600));color:var(--gold-300);
    font-size:22px;margin-bottom:16px;transition:transform .4s cubic-bezier(.34,1.56,.64,1);
    border:1px solid rgba(176,141,87,.3);
  }
  .card:hover .icon{transform:rotate(8deg) scale(1.12)}
  .card h3{margin:0 0 8px;font-size:19px;color:var(--navy-900);font-family:Georgia,"Songti SC",serif}
  .card p{margin:0;color:var(--muted);font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif}
  .card ul{margin:14px 0 0;padding:0;list-style:none;color:#475569;font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif}
  .card li{margin:7px 0;padding-left:20px;position:relative}
  .card li::before{content:"◆";position:absolute;left:0;color:var(--gold-500);font-size:10px;top:4px}

  /* ===== 服务类型模块 ===== */
  .service-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:stretch}
  .service-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
  .service-item{padding:18px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;display:flex;gap:12px;align-items:flex-start;transition:.3s}
  .service-item:hover{transform:translateY(-4px);border-color:var(--gold-400);box-shadow:0 12px 30px rgba(176,141,87,.14)}
  .dot{width:10px;height:10px;border-radius:50%;background:var(--gold-500);box-shadow:0 0 0 5px rgba(176,141,87,.18);margin-top:7px;flex:none}
  .service-item strong{display:block;color:var(--navy-900);font-size:16px;margin-bottom:3px;font-family:-apple-system,"PingFang SC",sans-serif}
  .service-item span{color:var(--muted);font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif}
  .feature-box{
    border-radius:24px;background:linear-gradient(135deg,var(--navy-900),var(--navy-700));
    color:#fff;padding:32px;box-shadow:var(--shadow);position:relative;overflow:hidden;border:1px solid rgba(176,141,87,.3);
  }
  .feature-box::after{content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(220,194,138,.18)}
  .feature-box h3{font-size:24px;line-height:1.3;margin:0 0 12px;position:relative;z-index:1;font-family:Georgia,"Songti SC",serif;color:#fff}
  .feature-box p{color:#c5d0de;position:relative;z-index:1;font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif}
  .feature-list{display:grid;gap:10px;margin-top:20px;position:relative;z-index:1}
  .feature-row{display:flex;justify-content:space-between;gap:14px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.07);border:1px solid rgba(220,194,138,.2)}
  .feature-row strong{color:var(--gold-300);font-size:14px;font-family:-apple-system,sans-serif}
  .feature-row span{color:#c5d0de;font-size:13px;font-family:-apple-system,sans-serif}

  /* ===== 写手团队 ===== */
  .writers{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:center}
  .writer-marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
  .writer-track{display:flex;width:max-content;animation:scrollWriters 40s linear infinite}
  .writer-track:hover{animation-play-state:paused}
  .writer-group{display:flex;gap:14px;padding-right:14px}
  .writer{flex:0 0 232px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 14px 38px rgba(13,27,46,.07);transition:.3s}
  @keyframes scrollWriters{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .writer:hover{transform:translateY(-6px);border-color:var(--gold-400);box-shadow:var(--shadow)}
  .avatar{width:58px;height:58px;border-radius:50%;background:linear-gradient(145deg,var(--navy-800),var(--navy-600));display:grid;place-items:center;font-size:24px;color:var(--gold-300);margin-bottom:12px;border:2px solid var(--gold-400);transition:transform .4s}
  .writer:hover .avatar{transform:rotate(-8deg) scale(1.08)}
  img.avatar{object-fit:cover;background:var(--navy-700)}
  .rating{color:var(--gold-500);font-weight:700;letter-spacing:1px;font-size:13px}
  .writer h3{margin:5px 0 2px;color:var(--navy-900);font-family:Georgia,serif;font-size:18px}
  .writer p{margin:0;color:var(--muted);font-size:13px;font-family:-apple-system,sans-serif}
  .tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
  .tag{font-size:11px;background:var(--cream);color:var(--gold-700);padding:5px 9px;border-radius:999px;font-weight:600;border:1px solid var(--line);font-family:-apple-system,sans-serif}

  /* ===== 价格模块 ===== */
  .pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
  .price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 14px 40px rgba(13,27,46,.07);transition:.3s;position:relative}
  .price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-400)}
  .price-card.featured{border:2px solid var(--gold-500);transform:translateY(-10px);box-shadow:var(--shadow-gold)}
  .price-card.featured:hover{transform:translateY(-14px)}
  .price-tag-flag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--gold-600),var(--gold-400));color:var(--navy-900);font-size:11px;font-weight:700;padding:5px 14px;border-radius:999px;letter-spacing:.5px;font-family:-apple-system,sans-serif}
  .price-title{display:flex;justify-content:space-between;gap:12px;align-items:center}
  .price-title h3{margin:0;color:var(--navy-900);font-size:21px;font-family:Georgia,"Songti SC",serif}
  .price-rule{font-size:28px;font-weight:700;color:var(--navy-900);margin:18px 0 6px;font-family:Georgia,serif}
  .price-rule span{font-size:13px;color:var(--muted);font-weight:400;font-family:-apple-system,sans-serif;display:block;margin-top:2px}
  .price-card p{color:var(--muted);margin:0 0 14px;font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif}
  .price-card ul{margin:0;padding:0;list-style:none;font-size:13px;color:#475569;font-family:-apple-system,"PingFang SC",sans-serif}
  .price-card li{margin:8px 0;padding-left:20px;position:relative}
  .price-card li::before{content:"◆";position:absolute;left:0;color:var(--gold-500);font-size:10px;top:4px}

  /* ===== 服务流程 ===== */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;position:relative}
  .steps::before{content:"";position:absolute;top:30px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,transparent,var(--gold-400),var(--gold-400),transparent);z-index:0}
  .step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative;z-index:1;transition:.3s;text-align:center}
  .step:hover{transform:translateY(-6px);border-color:var(--gold-400);box-shadow:var(--shadow)}
  .step::before{
    content:counter(step,decimal-leading-zero);width:60px;height:60px;border-radius:50%;display:grid;place-items:center;
    background:#fff;border:2px solid var(--gold-500);color:var(--navy-900);font-weight:700;margin:0 auto 16px;
    font-family:Georgia,serif;font-size:20px;transition:transform .4s cubic-bezier(.34,1.56,.64,1);
  }
  .step:hover::before{transform:rotate(360deg) scale(1.1);background:var(--navy-900);color:var(--gold-300)}
  .step h3{margin:0 0 8px;color:var(--navy-900);font-family:Georgia,"Songti SC",serif;font-size:18px}
  .step p{margin:0;color:var(--muted);font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif}

  /* ===== SEO 文案卡片 ===== */
  .seo-copy{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:46px}
  .copy-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 14px 40px rgba(13,27,46,.07);transition:.3s}
  .copy-card:hover{transform:translateY(-4px);border-color:var(--gold-400);box-shadow:var(--shadow)}
  .copy-card h3{font-size:21px;line-height:1.34;margin:0 0 14px;color:var(--navy-900);font-family:Georgia,"Songti SC",serif}
  .copy-card p{color:#4d5f78;margin:0 0 12px;font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif;line-height:1.85}
  .copy-card p:last-child{margin-bottom:0}

  /* ===== FAQ 手风琴 ===== */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .faq-col-title{grid-column:1/-1;text-align:center;color:var(--gold-700);font-size:13px;letter-spacing:2px;text-transform:uppercase;font-family:-apple-system,sans-serif;margin-bottom:-6px}
  .faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .3s,box-shadow .3s}
  .faq-card:hover{border-color:var(--gold-400);box-shadow:0 10px 28px rgba(176,141,87,.12)}
  .faq-q{cursor:pointer;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px;font-weight:700;color:var(--navy-900);font-family:-apple-system,"PingFang SC",sans-serif;font-size:15px;list-style:none;width:100%;text-align:left;background:none;border:none}
  .faq-q::-webkit-details-marker{display:none}
  .faq-q .toggle{width:24px;height:24px;border-radius:50%;border:1px solid var(--gold-500);display:grid;place-items:center;color:var(--gold-600);transition:transform .35s,background .3s;flex:none;font-size:14px}
  .faq-card.open .toggle{transform:rotate(135deg);background:var(--gold-500);color:#fff}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
  .faq-a-inner{padding:0 20px 18px;color:var(--muted);font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif}

  /* ===== 热门关键词 ===== */
  .hot-keywords{background:linear-gradient(180deg,#fff 0%,var(--paper) 100%)}
  .hot-board{
    border-radius:28px;background:linear-gradient(135deg,var(--navy-950),var(--navy-700));
    color:#fff;padding:38px;box-shadow:var(--shadow);position:relative;overflow:hidden;border:1px solid rgba(176,141,87,.3);
  }
  .hot-board::after{content:"";position:absolute;right:-100px;top:-110px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(220,194,138,.16)}
  .hot-board::before{content:"";position:absolute;left:-60px;bottom:-80px;width:200px;height:200px;border-radius:50%;background:rgba(176,141,87,.1)}
  .hot-intro{position:relative;z-index:1;max-width:880px}
  .hot-intro h2{font-size:clamp(24px,2.8vw,36px);line-height:1.2;margin:12px 0 8px;color:#fff;font-family:Georgia,"Songti SC",serif}
  .hot-intro p{color:#c5d0de;margin:0;font-size:15px;font-family:-apple-system,"PingFang SC",sans-serif}
  .hot-tags-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:24px}
  .hot-tag{
    display:flex;align-items:center;justify-content:center;text-align:center;min-height:52px;padding:12px 14px;
    border:1px solid rgba(220,194,138,.28);border-radius:14px;background:rgba(255,255,255,.06);
    color:#e8e4d8;font-size:14px;font-weight:600;transition:.25s;font-family:-apple-system,"PingFang SC",sans-serif;line-height:1.25;
  }
  .hot-tag:hover{transform:translateY(-4px);border-color:var(--gold-400);background:rgba(176,141,87,.2);box-shadow:0 14px 32px rgba(0,0,0,.18)}
  .hot-tag.is-primary{background:linear-gradient(135deg,var(--gold-600),var(--gold-400));border-color:var(--gold-400);color:var(--navy-900)}
  .hot-tag.is-ellipsis{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:26px}

  /* ===== 地区入口 ===== */
  .regions-section{margin-top:48px}
  .regions-head{text-align:center;margin-bottom:24px}
  .regions-head h3{font-size:24px;color:var(--navy-900);font-family:Georgia,"Songti SC",serif;margin:0 0 10px}
  .regions-head p{color:var(--muted);font-size:14px;font-family:-apple-system,"PingFang SC",sans-serif;margin:0 auto;max-width:680px}
  .regions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
  .region{padding:11px 20px;border:1px solid var(--gold-500);border-radius:999px;background:#fff;color:var(--navy-800);font-weight:700;font-family:-apple-system,"PingFang SC",sans-serif;font-size:14px;box-shadow:0 8px 22px rgba(176,141,87,.1);transition:.25s;white-space:nowrap}
  .region:hover{background:var(--navy-900);color:var(--gold-300);transform:translateY(-3px);border-color:var(--navy-900)}

  /* ===== 最终CTA ===== */
  .final-cta{
    background:linear-gradient(135deg,var(--navy-900),var(--navy-700));color:#fff;border-radius:28px;
    padding:44px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
    box-shadow:var(--shadow);border:1px solid rgba(176,141,87,.3);position:relative;overflow:hidden;
  }
  .final-cta::after{content:"";position:absolute;right:-80px;top:-80px;width:240px;height:240px;border-radius:50%;border:1px solid rgba(220,194,138,.18)}
  .final-cta h2{font-size:30px;line-height:1.25;margin:0 0 10px;font-family:Georgia,"Songti SC",serif;color:#fff;position:relative;z-index:1}
  .final-cta p{margin:0;color:#c5d0de;font-family:-apple-system,"PingFang SC",sans-serif;position:relative;z-index:1}

  /* ===== 页脚 ===== */
  footer{background:var(--navy-950);color:#c5d0de;padding:60px 0 24px;font-family:-apple-system,"PingFang SC",sans-serif}
  .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr .9fr;gap:30px}
  .footer-logo{font-size:22px;font-weight:700;color:#fff;margin-bottom:12px;font-family:Georgia,serif;letter-spacing:.5px}
  .footer-logo b{color:var(--gold-400)}
  footer h3{font-size:15px;color:var(--gold-300);margin:0 0 14px;letter-spacing:1px;text-transform:uppercase}
  footer p, footer a{color:#aeb8c6;font-size:14px}
  footer a{display:block;margin:7px 0;transition:color .2s}
  footer a:hover{color:var(--gold-400)}
  .payments,.socials{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
  .pay,.social{min-width:46px;padding:7px 10px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid rgba(220,194,138,.2);font-weight:600;font-size:12px;color:#c5d0de;text-align:center;transition:.25s}
  .pay:hover,.social:hover{background:rgba(176,141,87,.18);color:#fff;border-color:var(--gold-500)}
  .friends{border-top:1px solid rgba(220,194,138,.15);margin-top:36px;padding-top:22px;color:#aeb8c6;font-size:13px}
  .friends a{display:inline;margin-right:14px}
  .copyright{border-top:1px solid rgba(220,194,138,.15);margin-top:20px;padding-top:18px;color:#7a8499;font-size:12px;text-align:center}

  /* ===== 移动端顶部滑动标签栏（logo 固定 + tabs 滑动） ===== */
  .mobile-tabs{display:none;position:sticky;top:38px;z-index:48;background:rgba(251,249,243,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:8px 12px}
  .mobile-logo{flex:none;display:inline-flex}
  .mobile-logo .logo-badge{width:34px;height:34px;border-radius:9px;font-size:13px}
  .mobile-tabs-inner{display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;flex:1;min-width:0;padding:2px 4px}
  .mobile-tabs-inner::-webkit-scrollbar{display:none}
  .mobile-tabs-inner a{flex:none;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--navy-800);font-family:-apple-system,"PingFang SC",sans-serif;transition:.2s;border:1px solid transparent;white-space:nowrap}
  .mobile-tabs-inner a:hover,.mobile-tabs-inner a.is-active{background:rgba(176,141,87,.12);color:var(--gold-700);border-color:rgba(176,141,87,.3)}

  /* 移动端标签栏"地区入口"下拉触发器 + 弹出层 */
  .mobile-tabs-inner button.mobile-tab{flex:none;display:inline-flex;align-items:center;gap:2px;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--navy-800);font-family:-apple-system,"PingFang SC",sans-serif;transition:.2s;border:1px solid transparent;white-space:nowrap;background:none;cursor:pointer}
  .mobile-tabs-inner button.mobile-tab .nav-arrow{font-size:9px;opacity:.6;margin-left:1px}
  .mobile-tabs-inner button.mobile-tab:hover,.mobile-tabs-inner button.mobile-tab.is-open,.mobile-tabs-inner button.mobile-tab.is-active{background:rgba(176,141,87,.12);color:var(--gold-700);border-color:rgba(176,141,87,.3)}
  .mobile-tabs > .mobile-tab-cta{flex:none;display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;font-size:13px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--gold-600),var(--gold-400));border:1px solid transparent;white-space:nowrap;font-family:-apple-system,"PingFang SC",sans-serif;transition:.2s;box-shadow:0 4px 12px rgba(176,141,87,.35)}
  .mobile-tabs > .mobile-tab-cta:hover{background:linear-gradient(135deg,var(--gold-700),var(--gold-500));color:#fff}
  .mobile-drop{position:absolute;top:100%;margin-top:6px;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px rgba(13,27,46,.14);padding:6px;display:none;flex-direction:column;gap:2px;z-index:70}
  .mobile-drop.open{display:flex}
  .mobile-drop a{padding:9px 14px;border-radius:8px;font-size:13px;font-weight:500;color:var(--navy-800);white-space:nowrap}
  .mobile-drop a:hover{background:var(--cream);color:var(--gold-700)}

  /* ===== 移动端底部固定导航栏 ===== */
  .mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:50;background:rgba(251,249,243,.97);backdrop-filter:blur(12px);border-top:1px solid var(--line);box-shadow:0 -10px 30px rgba(13,27,46,.12);padding:10px 10px calc(10px + env(safe-area-inset-bottom));justify-content:space-around;align-items:flex-end;overflow:visible}
  .mb-item{display:flex;flex-direction:column;align-items:center;gap:5px;flex:1;min-width:0;padding:8px 4px;color:var(--navy-700);font-size:13px;font-family:-apple-system,"PingFang SC",sans-serif;font-weight:600;transition:color .2s;position:relative}
  .mb-item svg,.mb-item img{width:26px;height:26px;fill:currentColor}
  .mb-item span{line-height:1;white-space:nowrap}
  .mb-item.is-active,.mb-item:active,.mb-item[aria-current="page"]:not(.mb-cta){color:var(--gold-700)}
  .mb-item[aria-current="page"]:not(.mb-cta)::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--gold-600),var(--gold-400))}
  .mb-cta[aria-current="page"]{box-shadow:0 8px 20px rgba(176,141,87,.55),0 0 0 3px #fbf9f3,0 0 0 6px rgba(176,141,87,.35)}
  /* 中间下单按钮：凸起金色圆形 */
  .mb-cta{
    flex:none;width:72px;height:72px;padding:0;
    background:linear-gradient(135deg,var(--gold-600),var(--gold-400));
    border-radius:50%;justify-content:center;color:#fff;
    box-shadow:0 8px 20px rgba(176,141,87,.55),0 0 0 3px #fbf9f3;
    transform:translateY(-20px);gap:3px;
  }
  .mb-cta svg,.mb-cta img{width:30px;height:30px}
  .mb-cta span{font-size:12px;line-height:1;font-weight:700}

  /* ===== 返回顶部按钮 ===== */
  .back-top{
    position:fixed;right:24px;bottom:28px;z-index:60;
    width:48px;height:48px;border-radius:50%;
    border:1px solid var(--line);background:#fff;color:var(--navy-800);
    display:flex;align-items:center;justify-content:center;cursor:pointer;
    box-shadow:0 10px 26px rgba(13,27,46,.16);
    opacity:0;visibility:hidden;transform:translateY(12px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s,color .2s,box-shadow .3s;
  }
  .back-top.show{opacity:1;visibility:visible;transform:none}
  .back-top:hover{color:var(--gold-700);box-shadow:0 12px 30px rgba(176,141,87,.35)}
  .back-top svg,.back-top img{width:22px;height:22px;fill:currentColor}

  /* ===== 移动端"更多"按钮 + 全屏导航面板 ===== */
  .mobile-more{
    flex:none;width:36px;height:36px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--navy-800);
    display:grid;place-items:center;cursor:pointer;transition:.22s;
  }
  .mobile-more svg,.mobile-more img{width:20px;height:20px;fill:currentColor}
  .mobile-more[aria-expanded="true"] img{content:url("/static/2026/skin/svg/ic-dots-light.svg")}
  .mobile-more:hover{border-color:var(--gold-500);color:var(--gold-700)}
  .mobile-more[aria-expanded="true"]{
    background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
    color:#fff;border-color:var(--gold-500);
  }

  .mobile-panel{
    position:fixed;inset:0;z-index:80;
    background:linear-gradient(160deg,var(--navy-950) 0%,var(--navy-800) 60%,var(--navy-700) 100%);
    color:#e6ebf2;
    transform:translateY(100%);visibility:hidden;
    transition:transform .4s cubic-bezier(.22,.61,.36,1),visibility .4s;
    display:flex;flex-direction:column;
    overflow-y:auto;-webkit-overflow-scrolling:touch;
  }
  .mobile-panel.open{transform:translateY(0);visibility:visible}
  .mobile-panel-head{
    position:sticky;top:0;z-index:2;
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 20px;border-bottom:1px solid rgba(220,194,138,.22);
    background:rgba(13,27,46,.92);backdrop-filter:blur(10px);
  }
  .mph-title{font-family:Georgia,"Songti SC",serif;font-size:18px;color:var(--gold-300);letter-spacing:.5px}
  .mobile-panel-close{
    width:38px;height:38px;border-radius:50%;
    border:1px solid rgba(220,194,138,.4);background:transparent;color:var(--gold-300);
    display:grid;place-items:center;cursor:pointer;transition:.2s;
  }
  .mobile-panel-close:hover{background:rgba(220,194,138,.18);color:#fff;transform:rotate(90deg)}
  .mobile-panel-close svg,.mobile-panel-close img{width:18px;height:18px}
  .mobile-panel-body{padding:26px 20px 44px;display:flex;flex-direction:column;gap:30px}
  .mp-group-title{
    margin:0 0 12px;font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
    color:var(--gold-400);font-family:-apple-system,sans-serif;
    display:flex;align-items:center;gap:10px;
  }
  .mp-group-title::before{content:"";width:18px;height:2px;background:var(--gold-500);border-radius:2px}
  .mp-links{display:flex;flex-direction:column}
  .mp-links a{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 2px;font-size:16px;
    font-family:-apple-system,"PingFang SC",sans-serif;color:#dde3ed;
    border-bottom:1px solid rgba(220,194,138,.1);transition:.2s;
  }
  .mp-links a:active,.mp-links a:hover{color:var(--gold-300);padding-left:8px}
  .mp-links a::after{content:"›";color:var(--gold-500);opacity:.6;font-size:20px;transition:.2s}
  .mp-links a:hover::after{opacity:1;transform:translateX(3px)}
  body.panel-open{overflow:hidden}

  /* ===== 滚动渐入 ===== */
  .reveal{opacity:0;transform:translateY(36px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
  .reveal.in{opacity:1;transform:none}
  .reveal.d1{transition-delay:.08s}
  .reveal.d2{transition-delay:.16s}
  .reveal.d3{transition-delay:.24s}
  .reveal.d4{transition-delay:.32s}

  /* ===== 响应式 ===== */
  @media (max-width:1180px){
    .qr-img{width:130px;height:130px}
  }
  @media (max-width:1040px){
    /* 平板及移动端:隐藏站点头部,启用顶部标签栏 + 底部导航栏 */
    body{padding-bottom:100px}
    .back-top{right:14px;bottom:calc(112px + env(safe-area-inset-bottom))}
    .site-header{display:none}
    .menu-toggle{display:none}
    .mobile-tabs{display:flex}
    .mobile-bar{display:flex}
    .nav-links{
      position:absolute;top:100%;left:0;right:0;
      flex-direction:column;align-items:stretch;gap:0;
      background:rgba(250,247,240,.98);backdrop-filter:blur(18px);
      border-top:1px solid var(--line);border-bottom:1px solid var(--line);
      box-shadow:0 18px 40px rgba(13,27,46,.14);
      max-height:0;overflow:hidden;visibility:hidden;
      transition:max-height .35s ease,visibility .35s,padding .35s;padding:0 18px;
    }
    .nav-links.open{max-height:78vh;overflow-y:auto;visibility:visible;padding:8px 18px 16px}
    .nav-links > a,.nav-item{padding:12px 0;border-bottom:1px solid rgba(228,221,207,.7)}
    .nav-item:last-child,.nav-links > a:last-child{border-bottom:none}
    .nav-arrow{display:none}
    .nav-caret{display:inline-flex;align-items:center}
    .nav-head > a::after,.nav-links > a::after{display:none}
    .dropdown{
      position:static;transform:none;opacity:1;max-height:0;overflow:hidden;visibility:hidden;
      padding:0;box-shadow:none;border:none;background:transparent;min-width:0;gap:0;
      transition:max-height .3s ease,visibility .3s,padding .3s;
    }
    .nav-item.expanded > .dropdown{visibility:visible;max-height:420px;padding:4px 0 6px 12px}
    .dropdown a{padding:9px 10px;font-size:13px}
    .hero-grid,.service-grid,.writers{grid-template-columns:1fr}
    .cards,.steps{grid-template-columns:repeat(2,1fr)}
    .pricing{grid-template-columns:1fr;max-width:480px;margin:0 auto}
    .price-card.featured{transform:none}
    .price-card.featured:hover{transform:translateY(-6px)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .hot-tags-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
    .seo-copy{grid-template-columns:1fr}
    .writer{flex:0 0 200px}
  }
  @media (max-width:720px){
    .top-strip .soc{display:none}
    /* 移动端顶部信息条：左侧品牌，右侧手机号+QQ，单行显示 */
    .top-info .sep,.top-info > span:not(.ti-item){display:none}
    .top-info{gap:12px;flex-wrap:nowrap;width:100%;min-width:0;justify-content:flex-end}
    .top-info strong{white-space:nowrap;flex:none;margin-right:auto}
    .top-info .ti-item{white-space:nowrap;flex:none}
    .nav{min-height:64px}
    .hero-grid{padding:48px 18px 54px;gap:26px}
    .hero p.lead{font-size:15px}
    .hero-panel{padding:20px;border-radius:18px}
    .contact-grid{grid-template-columns:1fr 1fr}
    .form-row{grid-template-columns:1fr}
    section{padding:56px 0}
    .cards,.service-list,.steps,.faq-grid,.footer-grid{grid-template-columns:1fr}
    .final-cta{grid-template-columns:1fr;padding:28px;border-radius:20px}
    .final-cta h2{font-size:24px}
    .hot-board{padding:24px;border-radius:20px}
    .hot-tags-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .feature-box{padding:24px}
    .writer{flex:0 0 170px;padding:16px}
    .regions{gap:8px}
    .region{padding:9px 14px;font-size:13px}
    .steps::before{display:none}
  }
  @media (max-width:480px){
    .nav-right .btn-outline{display:none}
    .nav-right .btn-primary{padding:0 14px}
    .logo b{font-size:17px}
  }

/* ===== iframe 嵌入页（teacher.html / apply.html）—— 居中放大卡片 ===== */
.iframe-section{width:100%;max-width:1200px;margin:0 auto;padding:32px 20px 64px}
.iframe-section iframe{
  display:block;width:100%;
  height:calc(100vh - 76px);min-height:720px;
  border:0;border-radius:14px;background:var(--cream);
  overflow:hidden;
  box-shadow:0 14px 44px rgba(13,27,46,.16);
  transition:box-shadow .3s ease}
.iframe-section iframe:hover{box-shadow:0 18px 52px rgba(13,27,46,.22)}
/* teacher.html 引用页内部 .page 为 height:100%+overflow:auto，内容实际约 1875px；
   iframe 高度给足后 .page 撑满即无内部滚动条，由外层页面滚动 */
.iframe-section iframe.iframe-teacher{height:1900px}
@media (max-width:720px){
  .iframe-section{padding:20px 14px 44px}
  .iframe-section iframe{height:calc(100vh - 66px);min-height:600px;border-radius:10px}
  .iframe-section iframe.iframe-teacher{height:1900px;border-radius:10px}
}