/* ============================================
   学生端专用样式 (Student-end Shell)
   - 顶部品牌导航
   - 固定成绩工具条
   - 居中 1200px 内容区
   - Hero / 吉祥物 / 现代品牌视觉
   ============================================ */

:root{
  --stu-primary:#1E40AF;
  --stu-primary-light:#3B82F6;
  --stu-primary-dark:#1E3A8A;
  --stu-accent:#F59E0B;
  --stu-accent-dark:#D97706;
  --stu-cyan:#06B6D4;
  --stu-bg:#F8FAFC;
  --stu-card:#FFFFFF;
  --stu-fg:#0F172A;
  --stu-fg-2:#475569;
  --stu-fg-3:#94A3B8;
  --stu-border:#E2E8F0;
  --stu-nav-h:64px;
  --stu-tool-h:48px;
  --stu-content-max:1200px;
  --stu-radius:12px;
  --stu-radius-lg:20px;
  --stu-shadow-sm:0 2px 4px rgba(15,23,42,.04),0 1px 2px rgba(15,23,42,.06);
  --stu-shadow:0 4px 12px rgba(15,23,42,.06),0 2px 4px rgba(15,23,42,.04);
  --stu-shadow-lg:0 20px 40px -12px rgba(15,23,42,.12),0 8px 16px -8px rgba(15,23,42,.08);
}

/* === 隐藏其他 4 端的侧边栏 === */
body.student-mode .sidebar{display:none}
body.student-mode .main{margin-left:0;padding:0;background:var(--stu-bg)}

/* === 顶部品牌导航 === */
.stu-nav{
  position:fixed;top:60px;left:0;right:0;height:var(--stu-nav-h);background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--stu-border);z-index:50;display:flex;align-items:center;
  padding:0 24px;gap:20px;
}
.stu-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.stu-brand-logo{
  width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--stu-primary),var(--stu-cyan));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;
  box-shadow:0 4px 12px rgba(30,64,175,.25);position:relative;overflow:hidden;
}
.stu-brand-logo::after{
  content:"";position:absolute;top:-50%;right:-50%;width:100%;height:100%;
  background:radial-gradient(circle,rgba(255,255,255,.4),transparent 60%);
}
.stu-brand-name{font-size:17px;font-weight:700;color:var(--stu-fg);letter-spacing:-.3px}
.stu-brand-name span{color:var(--stu-primary)}
.stu-brand-tag{font-size:10.5px;color:var(--stu-fg-3);background:var(--stu-bg);padding:2px 6px;border-radius:4px;margin-left:6px}

.stu-nav-list{display:flex;gap:2px;flex:1;white-space:nowrap}
.stu-nav-item{
  display:flex;align-items:center;gap:5px;padding:8px 12px;border-radius:8px;
  font-size:13.5px;font-weight:500;color:var(--stu-fg-2);cursor:pointer;transition:all .15s ease;
  position:relative;white-space:nowrap;flex-shrink:0;
}
.stu-nav-item:hover{color:var(--stu-primary);background:#EFF6FF}
.stu-nav-item.active{color:var(--stu-primary);background:#EFF6FF;font-weight:600}
.stu-nav-item.active::after{
  content:"";position:absolute;bottom:-19px;left:50%;transform:translateX(-50%);
  width:24px;height:2px;background:var(--stu-primary);border-radius:2px;
}
.stu-nav-item svg{width:16px;height:16px}
.stu-nav-item .badge{margin-left:2px;background:var(--stu-accent);color:#fff;font-size:9px;padding:1px 5px;border-radius:8px;font-weight:600}

.stu-nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.stu-search-trigger{
  display:flex;align-items:center;gap:6px;background:var(--stu-bg);
  padding:7px 12px;border-radius:99px;font-size:12.5px;color:var(--stu-fg-3);
  cursor:pointer;border:1px solid transparent;transition:all .15s ease;
  white-space:nowrap;
}
.stu-search-trigger:hover{background:#F1F5F9;border-color:var(--stu-border)}
.stu-search-trigger svg{width:14px;height:14px;flex-shrink:0}

.stu-cta-btn{
  background:linear-gradient(135deg,var(--stu-accent),var(--stu-accent-dark));
  color:#fff;padding:7px 14px;border-radius:99px;font-size:12.5px;font-weight:600;
  display:flex;align-items:center;gap:5px;cursor:pointer;border:none;
  box-shadow:0 2px 8px rgba(217,119,6,.25);transition:all .15s ease;
  white-space:nowrap;flex-shrink:0;
}
.stu-cta-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(217,119,6,.35)}
.stu-cta-btn svg{width:14px;height:14px}

.stu-user{display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 10px 4px 4px;border-radius:99px;transition:all .15s ease}
.stu-user:hover{background:var(--stu-bg)}
.stu-user .avatar{width:32px;height:32px}
.stu-user-name{font-size:13px;font-weight:600;color:var(--stu-fg)}
.stu-user-tag{font-size:10.5px;color:var(--stu-fg-3)}

/* === 固定成绩工具条 === */
.stu-toolbar{
  position:fixed;top:calc(var(--stu-nav-h) + 60px);;left:0;right:0;height:var(--stu-tool-h);
  background:linear-gradient(90deg,#EFF6FF 0%,#FFFFFF 50%,#FFF7ED 100%);
  border-bottom:1px solid var(--stu-border);z-index:40;
  display:flex;align-items:center;padding:0 32px;gap:24px;font-size:12.5px;
}
.stu-toolbar-label{color:var(--stu-fg-3);font-weight:500}
.stu-toolbar-pill{
  display:flex;align-items:center;gap:5px;background:#fff;
  border:1px solid var(--stu-border);border-radius:99px;padding:4px 10px;
  font-size:12px;color:var(--stu-fg-2);font-weight:500;
}
.stu-toolbar-pill b{color:var(--stu-primary);font-weight:700}
.stu-toolbar-pill.accent b{color:var(--stu-accent-dark)}
.stu-toolbar-pill.success{background:#F0FDF4;border-color:#BBF7D0}
.stu-toolbar-pill.success b{color:var(--stu-success,#16A34A)}
.stu-toolbar-spacer{flex:1}
.stu-toolbar-action{color:var(--stu-primary);font-size:12px;font-weight:500;cursor:pointer}
.stu-toolbar-action:hover{text-decoration:underline}

/* === 内容容器 === */
.stu-container{
  max-width:var(--stu-content-max);margin:0 auto;padding:0 32px 32px;
}
.stu-content{
  padding-top:calc(var(--stu-nav-h) + var(--stu-tool-h));
  min-height:100vh;
}
/* === 通屏 Hero Banner（铺满视口宽度，贴近顶部） === */
.stu-hero-fullbleed{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#1E40AF 0%,#3B82F6 45%,#06B6D4 100%);
  color:#fff;
  margin-top:0;
  margin-bottom:32px;
}

/* === Hero 大 Banner === */
.stu-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#1E40AF 0%,#3B82F6 45%,#06B6D4 100%);
  padding:36px 0 96px;color:#fff;
  margin-bottom:0;
  border-radius:0;
  width:100%;
}
.stu-hero::before{
  content:"";position:absolute;top:-100px;right:-100px;width:400px;height:400px;
  border-radius:50%;background:rgba(255,255,255,.06);
}
.stu-hero::after{
  content:"";position:absolute;bottom:-80px;right:120px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.04);
}
.stu-hero-grid{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
}
.stu-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:center;min-height:380px}
.stu-hero-title{font-size:48px;font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.stu-hero-title .hl{color:#FDE68A}
.stu-hero-sub{font-size:15px;line-height:1.6;opacity:.92;margin-bottom:24px;max-width:480px}
.stu-hero-ctas{display:flex;gap:12px;flex-wrap:nowrap}
.stu-hero-cta-primary{
  background:#fff;color:var(--stu-primary);padding:12px 20px;border-radius:99px;
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
  cursor:pointer;border:none;box-shadow:0 4px 12px rgba(0,0,0,.1);transition:all .15s ease;
  white-space:nowrap;
}
.stu-hero-cta-primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.15)}
.stu-hero-cta-secondary{
  background:rgba(255,255,255,.15);color:#fff;padding:12px 20px;border-radius:99px;
  font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;
  cursor:pointer;border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px);
  transition:all .15s ease;white-space:nowrap;
}
.stu-hero-cta-secondary:hover{background:rgba(255,255,255,.25)}
.stu-hero-stats{display:flex;gap:24px;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.15)}
.stu-hero-stat .v{font-size:22px;font-weight:700}
.stu-hero-stat .l{font-size:12px;opacity:.8;margin-top:2px}

.stu-hero-visual{position:relative;height:340px;display:flex;align-items:center;justify-content:center}
.stu-hero-card{
  position:absolute;background:#fff;color:var(--stu-fg);border-radius:16px;
  padding:16px;box-shadow:0 16px 32px rgba(0,0,0,.18);
}
.stu-hero-card-1{top:0;right:0;width:220px;transform:rotate(3deg)}
.stu-hero-card-2{bottom:0;left:0;width:200px;transform:rotate(-4deg)}
.stu-hero-card-3{top:50%;left:50%;transform:translate(-50%,-50%) rotate(0deg);width:240px;z-index:2}
.stu-hero-card-title{font-size:12px;font-weight:600;color:var(--stu-fg-2);margin-bottom:6px;display:flex;align-items:center;gap:5px}
.stu-hero-card-val{font-size:18px;font-weight:700;color:var(--stu-primary)}
.stu-hero-card-progress{height:5px;background:#F1F5F9;border-radius:99px;overflow:hidden;margin-top:8px}
.stu-hero-card-progress-bar{height:100%;background:linear-gradient(90deg,var(--stu-primary),var(--stu-cyan));border-radius:99px}

/* === 场景入口（4 大块） === */
.stu-scenarios{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px}
.stu-scenario{
  position:relative;background:#fff;border-radius:var(--stu-radius-lg);
  padding:24px;cursor:pointer;overflow:hidden;border:1px solid var(--stu-border);
  transition:all .2s ease;
}
.stu-scenario:hover{transform:translateY(-3px);box-shadow:var(--stu-shadow-lg);border-color:transparent}
.stu-scenario-icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.stu-scenario-icon svg{width:24px;height:24px}
.stu-scenario h3{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--stu-fg)}
.stu-scenario p{font-size:13px;color:var(--stu-fg-2);line-height:1.5;margin-bottom:14px}
.stu-scenario-action{font-size:13px;font-weight:600;display:flex;align-items:center;gap:4px;transition:gap .15s ease}
.stu-scenario:hover .stu-scenario-action{gap:8px}
.stu-scenario-deco{position:absolute;top:-30px;right:-30px;width:100px;height:100px;border-radius:50%;opacity:.08}

/* === 快速入口网格（8 个） === */
.stu-quick-grid{
  background:#fff;border-radius:var(--stu-radius-lg);padding:24px;
  border:1px solid var(--stu-border);margin-bottom:32px;
}
.stu-section-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:18px}
.stu-section-title{font-size:18px;font-weight:600;color:var(--stu-fg)}
.stu-section-sub{font-size:13px;color:var(--stu-fg-2);margin-top:4px}
.stu-section-link{font-size:13px;color:var(--stu-primary);font-weight:500;cursor:pointer}
.stu-section-link:hover{text-decoration:underline}
.stu-quick-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stu-quick-item{
  display:flex;align-items:center;gap:12px;padding:14px;
  background:var(--stu-bg);border-radius:10px;cursor:pointer;transition:all .15s ease;
}
.stu-quick-item:hover{background:#F1F5F9;transform:translateX(2px)}
.stu-quick-item .ico{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.stu-quick-item .ico svg{width:18px;height:18px}
.stu-quick-item .l{flex:1;min-width:0}
.stu-quick-item .t{font-size:13.5px;font-weight:600;color:var(--stu-fg);line-height:1.3}
.stu-quick-item .d{font-size:11.5px;color:var(--stu-fg-3);margin-top:2px}

/* === 高考倒计时 === */
.stu-countdown{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin-bottom:32px}
.stu-calendar-card{
  background:linear-gradient(135deg,#FFFFFF,#F8FAFC);
  border:1px solid var(--stu-border);border-radius:var(--stu-radius-lg);padding:24px;
}
.stu-calendar-timeline{position:relative;padding-left:24px;margin-top:18px}
.stu-calendar-timeline::before{
  content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--stu-primary),var(--stu-cyan),var(--stu-accent));
}
.stu-calendar-node{position:relative;padding:8px 0 8px 0}
.stu-calendar-dot{
  position:absolute;left:-21px;top:14px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--stu-primary);
}
.stu-calendar-node.charge .stu-calendar-dot{border-color:var(--stu-danger)}
.stu-calendar-node.stable .stu-calendar-dot{border-color:var(--stu-success)}
.stu-calendar-node.safe .stu-calendar-dot{border-color:var(--stu-primary)}
.stu-calendar-node .date{font-size:11.5px;color:var(--stu-fg-3);font-weight:500;margin-bottom:2px}
.stu-calendar-node .title{font-size:14px;font-weight:600;color:var(--stu-fg);margin-bottom:2px}
.stu-calendar-node .desc{font-size:12px;color:var(--stu-fg-2)}
.stu-calendar-tag{
  display:inline-block;padding:1px 8px;border-radius:99px;font-size:10.5px;
  font-weight:600;margin-left:8px;
}
.stu-calendar-tag.charge{background:#FEE2E2;color:#B91C1C}
.stu-calendar-tag.stable{background:#DCFCE7;color:#15803D}
.stu-calendar-tag.safe{background:#DBEAFE;color:#1E40AF}
.stu-calendar-tag.warning{background:#FEF3C7;color:#B45309}

.stu-countdown-side{display:flex;flex-direction:column;gap:12px}
.stu-countdown-box{
  flex:1;background:linear-gradient(135deg,var(--stu-primary),var(--stu-cyan));
  border-radius:var(--stu-radius-lg);padding:24px;color:#fff;display:flex;flex-direction:column;justify-content:center;
  position:relative;overflow:hidden;
}
.stu-countdown-box::after{
  content:"";position:absolute;bottom:-30px;right:-30px;width:120px;height:120px;
  border-radius:50%;background:rgba(255,255,255,.1);
}
.stu-countdown-box .l{font-size:13px;opacity:.85;margin-bottom:8px}
.stu-countdown-box .v{font-size:48px;font-weight:700;line-height:1;letter-spacing:-1px}
.stu-countdown-box .u{font-size:14px;margin-left:6px;font-weight:500;opacity:.85}
.stu-countdown-box .d{font-size:12px;opacity:.75;margin-top:6px}

/* === 智能推荐（基于已填成绩） === */
.stu-recommend{margin-bottom:32px}
.stu-recommend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stu-school-card{
  background:#fff;border:1px solid var(--stu-border);border-radius:var(--stu-radius);
  overflow:hidden;cursor:pointer;transition:all .2s ease;
}
.stu-school-card:hover{transform:translateY(-3px);box-shadow:var(--stu-shadow-lg);border-color:transparent}
.stu-school-card-banner{
  height:80px;background:linear-gradient(135deg,var(--stu-primary),var(--stu-cyan));
  position:relative;overflow:hidden;
}
.stu-school-card-banner::after{
  content:"";position:absolute;top:-20px;right:-20px;width:80px;height:80px;
  border-radius:50%;background:rgba(255,255,255,.15);
}
.stu-school-card-banner-text{position:absolute;left:14px;bottom:12px;color:#fff;font-size:11.5px;font-weight:600}
.stu-school-card-body{padding:16px}
.stu-school-card-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px}
.stu-school-card-logo{
  width:40px;height:40px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(135deg,#DBEAFE,#BFDBFE);color:var(--stu-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;
}
.stu-school-card-name{font-size:15px;font-weight:600;color:var(--stu-fg);line-height:1.3;margin-bottom:2px}
.stu-school-card-meta{font-size:11.5px;color:var(--stu-fg-2)}
.stu-school-card-tags{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap}
.stu-school-card-tags .tg{font-size:10.5px;padding:1px 6px;border-radius:4px;background:#EFF6FF;color:var(--stu-primary);font-weight:500}
.stu-school-card-data{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:10px 0;
  border-top:1px dashed var(--stu-border);margin-top:6px;
}
.stu-school-card-data .item{text-align:center}
.stu-school-card-data .v{font-size:13.5px;font-weight:700;color:var(--stu-fg)}
.stu-school-card-data .l{font-size:10.5px;color:var(--stu-fg-3);margin-top:1px}
.stu-school-card-match{
  display:flex;align-items:center;gap:6px;padding:8px 0;border-top:1px solid var(--stu-border);
  font-size:12px;color:var(--stu-fg-2);
}
.stu-school-card-match b{color:var(--stu-success,#16A34A);font-weight:700;font-size:14px}

/* === 资讯 === */
.stu-news-section{margin-bottom:32px}
.stu-news-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.stu-news-item{
  background:#fff;border:1px solid var(--stu-border);border-radius:var(--stu-radius);
  padding:18px;cursor:pointer;transition:all .15s ease;
}
.stu-news-item:hover{border-color:var(--stu-primary);box-shadow:var(--stu-shadow)}
.stu-news-cat{
  display:inline-block;padding:2px 8px;border-radius:4px;font-size:10.5px;
  font-weight:600;background:#EFF6FF;color:var(--stu-primary);margin-bottom:8px;
}
.stu-news-title{font-size:14.5px;font-weight:600;line-height:1.4;color:var(--stu-fg);margin-bottom:8px}
.stu-news-meta{font-size:11.5px;color:var(--stu-fg-3);display:flex;justify-content:space-between}

/* === 品牌保障 === */
.stu-trust{
  background:linear-gradient(135deg,#FFFFFF,#F8FAFC);
  border:1px solid var(--stu-border);border-radius:var(--stu-radius-lg);
  padding:32px;margin-bottom:24px;
}
.stu-trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:20px}
.stu-trust-item{text-align:center}
.stu-trust-icon{
  width:48px;height:48px;border-radius:50%;margin:0 auto 10px;
  display:flex;align-items:center;justify-content:center;
  background:#EFF6FF;color:var(--stu-primary);
}
.stu-trust-icon svg{width:22px;height:22px}
.stu-trust-item .v{font-size:22px;font-weight:700;color:var(--stu-fg)}
.stu-trust-item .l{font-size:12px;color:var(--stu-fg-2);margin-top:2px}

/* === Footer === */
.stu-footer{
  background:#0F172A;color:#94A3B8;padding:40px 32px;
  margin-top:40px;
}
.stu-footer .stu-footer-wrap{max-width:var(--stu-content-max);margin:0 auto}
.stu-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.stu-footer h4{color:#fff;font-size:14px;margin-bottom:14px;font-weight:600}
.stu-footer a{display:block;font-size:12.5px;color:#94A3B8;padding:4px 0;cursor:pointer}
.stu-footer a:hover{color:#fff}
.stu-footer-brand{color:#fff;font-size:16px;font-weight:700;margin-bottom:8px}
.stu-footer-brand span{color:#3B82F6}
.stu-footer-copy{font-size:11.5px;margin-top:18px;padding-top:18px;border-top:1px solid #1E293B}

/* === 通用工具 === */
/* SVG 图标默认尺寸 */
.stu-section-title svg,.stu-section-title svg,
.stu-section-link svg,.stu-section-link svg{
  width:18px;height:18px;display:inline-block;vertical-align:middle;margin-right:4px;
}
.stu-card-title svg{
  width:18px;height:18px;display:inline-block;vertical-align:middle;margin-right:4px;
}
.stu-breadcrumb{
  display:flex;align-items:center;gap:6px;font-size:13px;color:var(--stu-fg-2);
  margin-bottom:18px;
}
.stu-breadcrumb a{color:var(--stu-fg-2);cursor:pointer}
.stu-breadcrumb a:hover{color:var(--stu-primary)}
.stu-breadcrumb svg{width:14px;height:14px;color:var(--stu-fg-3)}
.stu-breadcrumb .cur{color:var(--stu-fg);font-weight:500}

.stu-page-head{margin-bottom:24px}
.stu-page-title{font-size:26px;font-weight:700;color:var(--stu-fg);letter-spacing:-.5px;margin-bottom:6px}
.stu-page-sub{font-size:14px;color:var(--stu-fg-2)}

.stu-tabs{
  display:flex;gap:0;border-bottom:1px solid var(--stu-border);margin-bottom:20px;
  background:transparent;overflow-x:auto;
}
.stu-tab{
  padding:12px 18px;font-size:14px;font-weight:500;color:var(--stu-fg-2);
  cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;
  transition:all .15s ease;
}
.stu-tab:hover{color:var(--stu-fg)}
.stu-tab.active{color:var(--stu-primary);border-bottom-color:var(--stu-primary);font-weight:600}

.stu-card{
  background:#fff;border:1px solid var(--stu-border);border-radius:var(--stu-radius-lg);
  padding:24px;box-shadow:var(--stu-shadow-sm);
}
.stu-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.stu-card-title{font-size:17px;font-weight:600;color:var(--stu-fg)}
.stu-card-sub{font-size:12.5px;color:var(--stu-fg-2);margin-top:2px}

.stu-btn{
  display:inline-flex;align-items:center;gap:6px;padding:9px 18px;
  border-radius:99px;font-size:13.5px;font-weight:500;cursor:pointer;
  border:1px solid transparent;transition:all .15s ease;
}
.stu-btn svg{width:14px;height:14px}
.stu-btn-primary{background:var(--stu-primary);color:#fff}
.stu-btn-primary:hover{background:var(--stu-primary-dark)}
.stu-btn-accent{background:linear-gradient(135deg,var(--stu-accent),var(--stu-accent-dark));color:#fff}
.stu-btn-secondary{background:#fff;color:var(--stu-fg);border-color:var(--stu-border)}
.stu-btn-secondary:hover{background:var(--stu-bg)}
.stu-btn-ghost{color:var(--stu-primary);background:transparent}
.stu-btn-ghost:hover{background:#EFF6FF}
.stu-btn-lg{padding:12px 24px;font-size:15px}
.stu-btn-sm{padding:6px 12px;font-size:12px}

.stu-input,.stu-select{
  height:40px;padding:0 14px;border:1px solid var(--stu-border);
  border-radius:10px;background:#fff;width:100%;font-size:14px;
  transition:all .15s ease;
}
.stu-input:focus,.stu-select:focus{outline:none;border-color:var(--stu-primary);box-shadow:0 0 0 3px rgba(30,64,175,.1)}
.stu-label{display:block;font-size:12.5px;color:var(--stu-fg-2);margin-bottom:6px;font-weight:500}
.stu-field{margin-bottom:16px}

.stu-tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500;background:#F1F5F9;color:var(--stu-fg-2)}
.stu-tag-primary{background:#DBEAFE;color:var(--stu-primary)}
.stu-tag-success{background:#DCFCE7;color:#15803D}
.stu-tag-warning{background:#FEF3C7;color:#B45309}
.stu-tag-danger{background:#FEE2E2;color:#B91C1C}
.stu-tag-info{background:#E0F2FE;color:#0369A1}

/* === 搜索框 === */
.stu-search-hero{
  position:relative;background:#fff;border-radius:99px;
  display:flex;align-items:center;padding:6px 6px 6px 22px;
  box-shadow:0 8px 24px rgba(15,23,42,.08);
  max-width:720px;margin:0 auto;
}
.stu-search-hero svg{width:20px;height:20px;color:var(--stu-fg-3);flex-shrink:0}
.stu-search-hero input{
  border:none;outline:none;background:transparent;flex:1;font-size:15px;padding:10px 14px;
}
.stu-search-hero button{
  background:var(--stu-primary);color:#fff;padding:10px 24px;border-radius:99px;
  font-size:14px;font-weight:600;border:none;cursor:pointer;
}

/* === 智能填报向导 === */
.stu-wizard-progress{
  display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:32px;
  padding:24px 0;
}
.stu-wizard-step{display:flex;align-items:center;gap:10px;position:relative}
.stu-wizard-circle{
  width:36px;height:36px;border-radius:50%;background:#fff;
  border:2px solid var(--stu-border);color:var(--stu-fg-3);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;transition:all .2s ease;
}
.stu-wizard-step.active .stu-wizard-circle{
  background:var(--stu-primary);border-color:var(--stu-primary);color:#fff;
  box-shadow:0 4px 12px rgba(30,64,175,.25);
}
.stu-wizard-step.done .stu-wizard-circle{
  background:var(--stu-success,#16A34A);border-color:var(--stu-success,#16A34A);color:#fff;
}
.stu-wizard-label{font-size:13px;color:var(--stu-fg-3);font-weight:500}
.stu-wizard-step.active .stu-wizard-label{color:var(--stu-primary);font-weight:600}
.stu-wizard-step.done .stu-wizard-label{color:var(--stu-success,#16A34A)}
.stu-wizard-line{width:80px;height:2px;background:var(--stu-border);margin:0 8px}
.stu-wizard-step.done + .stu-wizard-line{background:var(--stu-success,#16A34A)}

.stu-wizard-card{
  background:#fff;border:1px solid var(--stu-border);border-radius:var(--stu-radius-lg);
  padding:36px;box-shadow:var(--stu-shadow);
}

/* === 吉祥物（志愿小助手·小志） === */
.stu-mascot{
  display:inline-flex;align-items:center;justify-content:center;
  position:relative;flex-shrink:0;
}
.stu-mascot-60{width:60px;height:60px}
.stu-mascot-80{width:80px;height:80px}
.stu-mascot-120{width:120px;height:120px}
.stu-mascot-body{
  width:100%;height:100%;border-radius:50%;
  background:linear-gradient(135deg,var(--stu-primary),var(--stu-cyan));
  position:relative;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(30,64,175,.2);
}
.stu-mascot-eye{
  position:absolute;width:8px;height:8px;border-radius:50%;
  background:#fff;top:38%;
}
.stu-mascot-eye.l{left:30%}
.stu-mascot-eye.r{right:30%}
.stu-mascot-pupil{
  position:absolute;width:3px;height:3px;border-radius:50%;
  background:var(--stu-primary-dark);top:60%;left:60%;transform:translate(-50%,-50%);
}
.stu-mascot-mouth{
  position:absolute;width:18px;height:9px;
  border:2px solid #fff;border-top:none;border-radius:0 0 18px 18px;
  bottom:30%;left:50%;transform:translateX(-50%);
}
.stu-mascot-blush{
  position:absolute;width:10px;height:6px;border-radius:50%;
  background:#FCA5A5;bottom:32%;
}
.stu-mascot-blush.l{left:18%}
.stu-mascot-blush.r{right:18%}
.stu-mascot-hat{
  position:absolute;top:-6%;left:50%;transform:translateX(-50%);
  width:60%;height:30%;background:#F59E0B;border-radius:8px 8px 4px 4px;
}
.stu-mascot-hat::after{
  content:"";position:absolute;top:80%;left:50%;transform:translateX(-50%);
  width:0;height:0;border-left:18px solid transparent;border-right:18px solid transparent;
  border-top:14px solid #F59E0B;
}
.stu-mascot-hattassel{
  position:absolute;top:90%;left:50%;transform:translateX(-50%);
  width:4px;height:8px;background:#DC2626;border-radius:2px;
}

.stu-mascot-bubble{
  position:relative;background:#fff;border:1px solid var(--stu-border);
  border-radius:14px;padding:12px 16px;font-size:13px;color:var(--stu-fg);
  box-shadow:var(--stu-shadow);max-width:280px;
}
.stu-mascot-bubble::before{
  content:"";position:absolute;left:-7px;top:18px;
  width:12px;height:12px;background:#fff;border-left:1px solid var(--stu-border);
  border-bottom:1px solid var(--stu-border);transform:rotate(45deg);
}

/* === 加载动画 === */
.stu-loading{
  display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;
}
.stu-loading-dots{display:flex;gap:8px;margin:16px 0}
.stu-loading-dots span{
  width:12px;height:12px;border-radius:50%;background:var(--stu-primary);
  animation:stuBounce 1.2s infinite;
}
.stu-loading-dots span:nth-child(2){animation-delay:.15s;background:var(--stu-cyan)}
.stu-loading-dots span:nth-child(3){animation-delay:.3s;background:var(--stu-accent)}
.stu-loading-dots span:nth-child(4){animation-delay:.45s;background:var(--stu-primary-light)}
@keyframes stuBounce{0%,80%,100%{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}

/* === 风险检测项 === */
.stu-risk-item{
  display:flex;gap:14px;padding:14px;border-radius:10px;
  border:1px solid var(--stu-border);background:#fff;
  border-left:3px solid var(--stu-border);
}
.stu-risk-item.danger{border-left-color:var(--stu-danger);background:#FEF2F2}
.stu-risk-item.warning{border-left-color:var(--stu-accent);background:#FFFBEB}
.stu-risk-item.success{border-left-color:var(--stu-success,#16A34A);background:#F0FDF4}
.stu-risk-item .body{flex:1;min-width:0}
.stu-risk-item .title{font-size:14px;font-weight:600;margin-bottom:4px}
.stu-risk-item .desc{font-size:12.5px;color:var(--stu-fg-2);line-height:1.6}
.stu-risk-item .tag{flex-shrink:0;align-self:flex-start}

/* === 移动端 iPhone 框 === */
.stu-mobile-frame{
  width:380px;height:780px;border-radius:42px;background:#0F172A;padding:14px;
  box-shadow:0 30px 60px -15px rgba(15,23,42,.4);margin:0 auto;position:relative;
}
.stu-mobile-screen{
  width:100%;height:100%;background:#fff;border-radius:30px;overflow:hidden;
  display:flex;flex-direction:column;position:relative;
}
.stu-mobile-status{height:32px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;font-size:12px;font-weight:600;color:#0F172A}
.stu-mobile-body{flex:1;overflow-y:auto;background:var(--stu-bg);position:relative}
.stu-mobile-body::-webkit-scrollbar{width:0}
.stu-mobile-nav{
  background:#fff;border-top:1px solid var(--stu-border);
  display:grid;grid-template-columns:repeat(4,1fr);padding:8px 0 14px;flex-shrink:0;
}
.stu-mobile-nav-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:10px;color:var(--stu-fg-3);padding:4px;
}
.stu-mobile-nav-item.active{color:var(--stu-primary);font-weight:600}
.stu-mobile-nav-item svg{width:22px;height:22px}
.stu-mobile-banner{
  background:linear-gradient(135deg,var(--stu-primary),var(--stu-cyan));
  color:#fff;padding:24px 18px;border-radius:0 0 20px 20px;margin-bottom:12px;
}
.stu-mobile-banner h2{font-size:19px;margin-bottom:6px;font-weight:700}
.stu-mobile-banner p{font-size:12.5px;opacity:.9;margin-bottom:14px;line-height:1.5}
.stu-mobile-section{background:#fff;margin:10px 14px;border-radius:14px;padding:14px}
.stu-mobile-section-title{font-size:14px;font-weight:600;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center}

/* === 响应式 === */
@media (max-width:1100px){
  .stu-hero-inner{grid-template-columns:1fr;gap:24px}
  .stu-hero-visual{height:200px}
  .stu-scenarios,.stu-quick-list,.stu-trust-grid{grid-template-columns:repeat(2,1fr)}
  .stu-recommend-grid,.stu-news-grid{grid-template-columns:repeat(2,1fr)}
  .stu-countdown{grid-template-columns:1fr}
}