/* ============================================================
   防掉档诊断系统 - 红色亮丽动态主题
   主色: 亮红 #ff2442 -> 橙红 #ff5c39  点缀: 金橙 #ffb020
   ============================================================ */
:root{
  --red:#ff2442;
  --red-dark:#d40f2f;
  --red-deep:#9f0b26;
  --red-glow:rgba(255,36,66,.35);
  --orange:#ff8a3d;
  --amber:#ffb020;
  --green:#16b364;
  --blue:#2f7bff;          /* 语义色保留: 稳/信息标签 */
  --ink:#2a1215;
  --muted:#8a6a6f;
  --line:#ffe3e7;
  --bg:#fff5f6;
  --radius:12px;
  --shadow:0 6px 20px rgba(255,36,66,.10);
  --grad-main:linear-gradient(135deg,#ff2442 0%,#ff5c39 55%,#ff9a3d 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;background-image:radial-gradient(circle at 15% 10%,rgba(255,36,66,.05) 0,transparent 30%),radial-gradient(circle at 85% 90%,rgba(255,140,60,.06) 0,transparent 35%)}
a{color:var(--red);text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 16px}

/* ---------- 动效定义 ---------- */
@keyframes gradShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes pulseGlow{0%,100%{box-shadow:0 4px 14px var(--red-glow)}50%{box-shadow:0 4px 26px rgba(255,36,66,.55)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes spinSlow{to{transform:rotate(360deg)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes riseParticle{0%{transform:translateY(0) scale(1);opacity:0}10%{opacity:.9}90%{opacity:.5}100%{transform:translateY(-120px) scale(.4);opacity:0}}

/* ---------- 顶部导航 (红色流光) ---------- */
.topbar{background:linear-gradient(90deg,#9f0b26,#ff2442 40%,#ff5c39 75%,#ff9a3d);background-size:220% 100%;color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 3px 14px rgba(255,36,66,.35);animation:gradShift 9s ease infinite}
.topbar-inner{display:flex;align-items:center;gap:28px;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.brand-logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#fff,#ffe3e7);color:var(--red);font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;animation:pulseGlow 2.4s ease infinite}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.5px;text-shadow:0 1px 6px rgba(159,11,38,.4)}
.brand-name em{display:block;font-style:normal;font-size:11px;font-weight:400;opacity:.85;letter-spacing:2px}
.topnav{display:flex;gap:4px;flex:1}
.topnav a{color:rgba(255,255,255,.88);padding:7px 14px;border-radius:8px;font-size:14px;transition:.18s;position:relative}
.topnav a:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-1px)}
.topnav a.on{background:#fff;color:var(--red);font-weight:700;box-shadow:0 3px 10px rgba(159,11,38,.35)}
.topuser{display:flex;align-items:center;gap:10px;font-size:13px}
.badge-role{background:rgba(255,255,255,.22);padding:2px 10px;border-radius:20px;font-size:12px;backdrop-filter:blur(4px)}
.logout{color:rgba(255,255,255,.85);font-size:13px}
.logout:hover{color:#fff}

/* ---------- 考生栏 ---------- */
.student-bar{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 16px;margin:16px 0;flex-wrap:wrap;box-shadow:var(--shadow);animation:fadeUp .45s ease both}
.sb-label{background:linear-gradient(135deg,#ff2442,#ff7a3d);color:#fff;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600;box-shadow:0 2px 8px var(--red-glow)}
.sb-meta{color:var(--muted);font-size:13px}
.steps-mini{margin-left:auto;display:flex;gap:6px}
.step-mini{font-size:12px;color:var(--muted);background:#fdeef0;padding:2px 10px;border-radius:20px}
.step-mini.done{background:#e7f8ef;color:var(--green)}

.main{min-height:calc(100vh - 320px);padding-top:8px;padding-bottom:40px}

/* ---------- 首页 Hero (红色流光+粒子) ---------- */
.hero{background:linear-gradient(135deg,#b00020 0%,#ff2442 40%,#ff5c39 70%,#ff9a3d 100%);background-size:180% 180%;border-radius:16px;color:#fff;padding:36px 40px;margin:20px 0 24px;position:relative;overflow:hidden;animation:gradShift 10s ease infinite, fadeUp .5s ease both;box-shadow:0 12px 34px rgba(255,36,66,.35)}
.hero:before{content:"";position:absolute;left:-80px;top:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 65%);animation:floaty 7s ease-in-out infinite}
.hero:after{content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),transparent 60%);animation:floaty 9s ease-in-out infinite reverse}
.hero h1{font-size:26px;margin-bottom:8px;letter-spacing:1px;text-shadow:0 2px 10px rgba(140,0,30,.45);position:relative;z-index:2}
.hero p{opacity:.94;max-width:640px;position:relative;z-index:2}
.hero .steps-line{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap;position:relative;z-index:2}
.hero .step-chip{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:6px 14px;border-radius:24px;font-size:13px;backdrop-filter:blur(3px);transition:.2s;animation:floaty 4s ease-in-out infinite}
.hero .step-chip:nth-child(2){animation-delay:.5s}
.hero .step-chip:nth-child(3){animation-delay:1s}
.hero .step-chip:nth-child(4){animation-delay:1.5s}
.hero .step-chip:hover{background:rgba(255,255,255,.3);transform:translateY(-2px)}
#heroParticles{position:absolute;inset:0;pointer-events:none;z-index:1}

/* ---------- 步骤卡片 (进场动画+悬浮) ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;position:relative;box-shadow:var(--shadow);transition:.22s;animation:fadeUp .5s ease both;overflow:hidden}
.step-card:nth-child(1){animation-delay:.05s}
.step-card:nth-child(2){animation-delay:.12s}
.step-card:nth-child(3){animation-delay:.19s}
.step-card:nth-child(4){animation-delay:.26s}
.step-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:3px;background:linear-gradient(90deg,transparent,var(--red),transparent);transition:left .5s ease}
.step-card:hover:before{left:100%}
.step-card:hover{transform:translateY(-6px);border-color:#ffb9c3;box-shadow:0 14px 34px rgba(255,36,66,.22)}
.step-card .num{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#ff2442,#ff7a3d);color:#fff;font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;box-shadow:0 3px 10px var(--red-glow)}
.step-card.done .num{background:linear-gradient(135deg,#16b364,#34d17c);box-shadow:0 3px 10px rgba(22,163,100,.3)}
.step-card h3{font-size:16px;margin-bottom:6px}
.step-card p{color:var(--muted);font-size:12.5px;min-height:40px;margin-bottom:14px}
.step-card .st-btn{display:block;text-align:center;padding:9px 0;border-radius:9px;font-size:14px;font-weight:600;transition:.18s}
.st-btn.primary{background:var(--grad-main);background-size:160% 160%;color:#fff;animation:gradShift 6s ease infinite;box-shadow:0 4px 12px var(--red-glow)}
.st-btn.primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,36,66,.5)}
.st-btn.ghost{background:#fff;color:var(--muted);border:1px solid var(--line)}
.st-btn.ghost:hover{border-color:var(--red);color:var(--red)}
.st-btn.warn{background:linear-gradient(135deg,#ff8a3d,#ffb020);color:#fff;animation:pulseGlow 2s ease infinite}
.st-btn.ok{background:#e7f8ef;color:var(--green);border:1px solid #b4e8cc}
.st-card-tag{position:absolute;top:16px;right:16px;font-size:11px;padding:2px 10px;border-radius:20px;background:#fdeef0;color:var(--red)}
.st-card-tag.ok{background:#e7f8ef;color:var(--green)}

/* ---------- 面板/卡片通用 ---------- */
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);margin-bottom:20px;overflow:hidden;animation:fadeUp .45s ease both}
.panel-hd{display:flex;align-items:center;gap:10px;padding:16px 22px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.panel-hd h2{font-size:17px;flex:1;position:relative;padding-left:12px}
.panel-hd h2:before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:4px;background:var(--grad-main)}
.panel-hd .sub{color:var(--muted);font-size:12.5px}
.panel-bd{padding:22px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* ---------- 表单 ---------- */
label.f{display:block;font-size:13px;color:#5c3339;margin-bottom:6px;font-weight:600}
label.f .req{color:var(--red)}
.inp,select.inp,textarea.inp{width:100%;padding:9px 12px;border:1px solid #f0c6cc;border-radius:9px;font-size:14px;background:#fff;transition:.15s;font-family:inherit}
.inp:focus{border-color:var(--red);outline:none;box-shadow:0 0 0 3px rgba(255,36,66,.12)}
textarea.inp{resize:vertical;min-height:70px}
.frm-row{margin-bottom:16px}
.frm-hint{font-size:12px;color:var(--muted);margin-top:4px}
.checkline{display:flex;gap:18px;flex-wrap:wrap;padding-top:6px}
.checkline label{display:flex;align-items:center;gap:6px;font-size:14px;cursor:pointer;transition:.15s}
.checkline label:hover{color:var(--red)}
.checkline input[type=checkbox]{accent-color:var(--red);width:15px;height:15px;cursor:pointer}

/* ---------- 选考科目 6选3 药丸 ---------- */
.subj-block{background:linear-gradient(180deg,#fff,#fff7f8);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:16px}
.subj-block label.f{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.subj-count{font-size:12px;font-weight:600;color:var(--muted);background:#fdeef0;border:1px solid #ffd4db;padding:1px 10px;border-radius:20px;transition:.2s}
.subj-count.ok{color:var(--green);background:#e7f8ef;border-color:#b4e8cc}
.subj-pills{display:flex;gap:12px;flex-wrap:wrap}
.subj-pill{position:relative;padding:10px 26px;border-radius:26px;border:2px solid #f0c6cc;background:#fff;color:#8c3a44;font-size:14px;font-weight:600;cursor:pointer;transition:.18s;user-select:none;display:inline-flex;align-items:center;gap:8px}
.subj-pill input{position:absolute;opacity:0;pointer-events:none}
.subj-pill:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px)}
.subj-pill.on{background:var(--grad-main);border-color:transparent;color:#fff;box-shadow:0 5px 14px var(--red-glow);transform:translateY(-2px)}
.subj-pill.on:before{content:"✓";font-size:13px;font-weight:800}
.subj-pill.dim{opacity:.4;pointer-events:auto}
.subj-pill.dim:hover{opacity:.7}
.tabbar{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:20px;flex-wrap:wrap}
.tabbar button{background:none;border:none;padding:10px 18px;font-size:14.5px;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;font-family:inherit;transition:.15s}
.tabbar button:hover{color:var(--red)}
.tabbar button.on{color:var(--red);border-bottom-color:var(--red);font-weight:700}
.tab-pane{display:none}
.tab-pane.on{display:block;animation:fadeUp .35s ease both}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:9px;border:none;font-size:14px;font-weight:600;cursor:pointer;transition:.18s;font-family:inherit}
.btn-blue{background:var(--grad-main);background-size:160% 160%;color:#fff;animation:gradShift 7s ease infinite;box-shadow:0 4px 12px var(--red-glow)}
.btn-blue:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(255,36,66,.5)}
.btn-green{background:linear-gradient(135deg,#16b364,#34d17c);color:#fff}
.btn-green:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(22,163,100,.4)}
.btn-gray{background:#fdeef0;color:#8c3a44}
.btn-gray:hover{background:#fbdde1}
.btn-danger{background:#ffe3e7;color:var(--red-dark)}
.btn-danger:hover{background:#ffc9d1}
.btn-sm{padding:5px 12px;font-size:12.5px}
.btn-ghost{background:#fff;color:var(--muted);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--red);color:var(--red)}

/* ---------- 上传区 ---------- */
.dropzone{border:2px dashed #f4aeb8;border-radius:14px;padding:46px 20px;text-align:center;background:linear-gradient(180deg,#fff,#fff7f8);cursor:pointer;transition:.2s;position:relative}
.dropzone:hover,.dropzone.drag{border-color:var(--red);background:linear-gradient(180deg,#fff,#ffeef1);box-shadow:0 8px 26px rgba(255,36,66,.14);transform:translateY(-2px)}
.dropzone .dz-icon{font-size:42px;margin-bottom:10px;display:inline-block;animation:floaty 3.2s ease-in-out infinite}
.dropzone h4{font-size:16px;margin-bottom:6px}
.dropzone p{color:var(--muted);font-size:13px}
.dz-types{display:inline-flex;gap:8px;margin-top:12px}
.dz-types span{background:#ffe9ed;color:var(--red);font-size:12px;padding:3px 12px;border-radius:20px;font-weight:600}
.upload-progress{margin-top:14px;display:none}
.progressbar{height:8px;background:#ffe3e7;border-radius:20px;overflow:hidden;margin-top:8px}
.progressbar i{display:block;height:100%;width:0;background:var(--grad-main);transition:width .3s}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{background:#fff3f4;color:#8c3a44;font-weight:600;padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:9px 12px;border-bottom:1px solid #fff0f2;vertical-align:middle}
.tbl tr:hover td{background:#fff7f8}
.tbl .inp{padding:6px 8px;font-size:13px}
.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.tag-blue{background:#e8f0ff;color:var(--blue)}
.tag-green{background:#e7f8ef;color:var(--green)}
.tag-orange{background:#fff3e2;color:var(--orange)}
.tag-red{background:#ffe3e7;color:var(--red-dark)}
.tag-gray{background:#f5f0f1;color:var(--muted)}

/* ---------- 图片上传 ---------- */
.img-drop{border:2px dashed #f4aeb8;border-radius:12px;padding:24px;text-align:center;cursor:pointer;background:#fff7f8;color:var(--muted);font-size:13px;transition:.2s}
.img-drop:hover{border-color:var(--red);color:var(--red);background:#ffeef1}
.img-list{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.img-item{position:relative;width:120px;height:120px;border-radius:10px;overflow:hidden;border:1px solid var(--line);transition:.2s}
.img-item:hover{transform:scale(1.03);box-shadow:0 6px 16px rgba(255,36,66,.2)}
.img-item img{width:100%;height:100%;object-fit:cover}
.img-item .del{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;background:rgba(159,11,38,.75);color:#fff;border:none;cursor:pointer;font-size:12px;line-height:1}
.img-item .cap{position:absolute;bottom:0;left:0;right:0;background:rgba(159,11,38,.6);color:#fff;font-size:10.5px;padding:2px 6px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 报告 ---------- */
.report-head{display:flex;gap:20px;align-items:center;padding:22px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.risk-big{width:110px;height:110px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:26px;flex-shrink:0;animation:pulseGlow 2.6s ease infinite}
.risk-big span{font-size:12px;font-weight:400;opacity:.85}
.risk-big.lv-high{background:linear-gradient(135deg,#ff2442,#c4001d)}
.risk-big.lv-mid{background:linear-gradient(135deg,#ff8a3d,#f79009)}
.risk-big.lv-low{background:linear-gradient(135deg,#16b364,#079455)}
.report-stats{display:flex;gap:14px;flex-wrap:wrap}
.stat-box{background:#fff7f8;border:1px solid var(--line);border-radius:10px;padding:10px 16px;text-align:center;min-width:84px;transition:.18s}
.stat-box:hover{transform:translateY(-3px);border-color:#ffb9c3;box-shadow:0 8px 20px rgba(255,36,66,.14)}
.stat-box b{display:block;font-size:19px}
.stat-box small{color:var(--muted)}
.risk-list{padding:8px 22px 22px}
.risk-item{border:1px solid var(--line);border-left:4px solid var(--muted);border-radius:10px;padding:14px 16px;margin-top:12px;background:#fff;transition:.18s;animation:fadeUp .35s ease both}
.risk-item:hover{transform:translateX(3px);box-shadow:0 8px 22px rgba(255,36,66,.1)}
.risk-item.lv-high{border-left-color:var(--red)}
.risk-item.lv-mid{border-left-color:var(--orange)}
.risk-item.lv-low{border-left-color:#fbc71a}
.risk-item.lv-info{border-left-color:var(--blue)}
.risk-item .r-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.risk-item .r-title{font-weight:600;font-size:14px;flex:1}
.risk-item .r-detail{color:#6b4a50;font-size:13px;margin-top:6px}
.risk-item .r-sug{margin-top:8px;font-size:13px;background:#fff7f8;border-radius:8px;padding:8px 12px;color:#6b4a50}
.risk-item .r-sug b{color:var(--red)}
.risk-item .r-ops{display:flex;gap:8px;margin-top:10px;justify-content:flex-end}
.filterbar{display:flex;gap:8px;flex-wrap:wrap;padding:14px 22px 0}
.filterbar button{border:1px solid var(--line);background:#fff;padding:5px 14px;border-radius:20px;font-size:12.5px;cursor:pointer;color:var(--muted);transition:.15s}
.filterbar button:hover{color:var(--red);border-color:#ffb9c3}
.filterbar button.on{background:var(--grad-main);color:#fff;border-color:transparent;box-shadow:0 3px 10px var(--red-glow)}
.empty{text-align:center;color:var(--muted);padding:60px 20px}
.empty .big{font-size:44px;margin-bottom:12px;display:inline-block;animation:floaty 3s ease-in-out infinite}

/* ---------- 登录 ---------- */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#8f0b26,#ff2442 45%,#ff7a3d 90%);background-size:200% 200%;animation:gradShift 8s ease infinite;position:relative;overflow:hidden}
.login-page:before{content:"";position:absolute;left:-100px;top:-100px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.16),transparent 60%);animation:floaty 8s ease-in-out infinite}
.login-page:after{content:"";position:absolute;right:-120px;bottom:-120px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 60%);animation:floaty 10s ease-in-out infinite reverse}
.login-card{background:#fff;border-radius:16px;padding:40px 44px;width:400px;max-width:92vw;box-shadow:0 24px 70px rgba(140,0,30,.5);position:relative;z-index:2;animation:fadeUp .5s ease both}
.login-card .lc-logo{width:52px;height:52px;border-radius:14px;background:var(--grad-main);color:#fff;font-size:26px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 6px 18px var(--red-glow);animation:pulseGlow 2.4s ease infinite}
.login-card h1{text-align:center;font-size:21px;margin-bottom:4px}
.login-card .lc-sub{text-align:center;color:var(--muted);font-size:12.5px;margin-bottom:24px}
.alert{padding:10px 14px;border-radius:9px;font-size:13px;margin-bottom:14px}
.alert-err{background:#ffe3e7;color:#b42318;border:1px solid #ffc9d1}
.alert-ok{background:#e7f8ef;color:#067647;border:1px solid #b4e8cc}

/* ---------- 页脚 ---------- */
.footer{background:#fff;border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:12.5px}
.footer ol{margin:8px 0 0 18px}
.footer li{margin-top:3px}

/* ---------- 弹窗 ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(140,0,30,.45);display:none;align-items:center;justify-content:center;z-index:100;backdrop-filter:blur(2px)}
.modal-mask.on{display:flex}
.modal{background:#fff;border-radius:14px;width:520px;max-width:92vw;max-height:86vh;overflow:auto;padding:26px 28px;animation:fadeUp .3s ease both}
.modal h3{font-size:17px;margin-bottom:16px;padding-left:12px;position:relative}
.modal h3:before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:4px;border-radius:4px;background:var(--grad-main)}
.modal .m-ops{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}

/* ---------- 访客预览模式 ---------- */
/* 访客模式 - 仅禁用报告查看 */
.guest-mode .guest-block{pointer-events:none;opacity:.55;filter:grayscale(.35);cursor:not-allowed}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#fff0f2}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#ff5c39,#ff2442);border-radius:20px}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .topnav{display:none}
  .student-bar .steps-mini{display:none}
}
@media (max-width:520px){
  .step-grid{grid-template-columns:1fr}
}

/* ---------- 手机端紧凑化（嵌入访客端查风险） ---------- */
@media (max-width:768px){
  .topbar-inner{height:50px;gap:10px}
  .brand-logo{width:28px;height:28px;font-size:15px;border-radius:8px}
  .brand-name{font-size:15px;line-height:1.15}
  .brand-name em{display:none}
  .container{padding:0 12px}
  .hero{padding:20px 16px;margin:12px 0 16px;border-radius:12px}
  .hero h1{font-size:20px;margin-bottom:6px;letter-spacing:.5px}
  .hero p{font-size:12.5px;line-height:1.55;max-width:100%}
  .hero .steps-line{gap:8px;margin-top:12px}
  .hero .step-chip{font-size:12px;padding:5px 11px}
  .student-bar{padding:8px 12px;margin:12px 0;gap:8px;border-radius:10px}
  .sb-label{font-size:11px}
  .sb-meta{font-size:12px}
  .step-grid{grid-template-columns:1fr;gap:12px;margin-bottom:18px}
  .step-card{padding:15px 14px;border-radius:12px}
  .step-card .num{width:28px;height:28px;font-size:14px;border-radius:8px;margin-bottom:9px}
  .step-card h3{font-size:15px;margin-bottom:4px}
  .step-card p{min-height:0;font-size:12px;margin-bottom:10px;line-height:1.55}
  .step-card .st-btn{padding:8px 0;font-size:13px;border-radius:8px}
  .st-card-tag{top:12px;right:12px;font-size:10px;padding:2px 8px}
  .main{padding-bottom:24px}
  .panel-hd{padding:13px 14px}
  .panel-hd h2{font-size:15px}
  .panel-bd{padding:14px}
  .btn{padding:8px 16px;font-size:13px}
  .table-wrap .tbl{font-size:12px}
  .modal{padding:20px 16px}
}

/* 第三十六项：访客模式下隐藏顶部红色导航栏与访客提示条（前端嵌入防掉档时页面更整洁） */
/* 第三十六项：访客模式下隐藏访客提示条（顶部红色导航栏保留，防掉档内各页面导航依赖它） */
body.guest-mode .guest-tip{display:none}

/* ==================== 精美提示弹窗 (替换原生 alert) ==================== */
.fdd-overlay{position:fixed;inset:0;background:rgba(34,10,16,.52);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;transition:opacity .22s ease}
.fdd-overlay.on{opacity:1}
.fdd-dialog{width:392px;max-width:94vw;background:#fff;border-radius:22px;padding:0 26px 24px;text-align:center;box-shadow:0 26px 70px rgba(120,8,30,.42);transform:scale(.85) translateY(18px);opacity:0;transition:transform .3s cubic-bezier(.34,1.56,.64,1),opacity .22s ease;position:relative;overflow:hidden}
.fdd-overlay.on .fdd-dialog{transform:scale(1) translateY(0);opacity:1}
.fdd-dialog::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-main);background-size:220% 100%;animation:gradShift 6s ease infinite}
.fdd-icon{width:66px;height:66px;margin:26px auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative;animation:fddPop .45s cubic-bezier(.34,1.56,.64,1) both .05s}
.fdd-icon:after{content:"";position:absolute;inset:0;border-radius:50%;opacity:.16;transform:scale(1);animation:fddRing 2.2s ease-out infinite}
.fdd-icon svg{position:relative;z-index:2;width:32px;height:32px;filter:drop-shadow(0 2px 3px rgba(0,0,0,.18))}
.fdd-icon.t-error{background:linear-gradient(135deg,#ff2442,#ff5c39);box-shadow:0 10px 22px rgba(255,36,66,.42)}
.fdd-icon.t-error:after{background:#ff2442}
.fdd-icon.t-ok{background:linear-gradient(135deg,#16b364,#34d17c);box-shadow:0 10px 22px rgba(22,163,100,.4)}
.fdd-icon.t-ok:after{background:#16b364}
.fdd-icon.t-info{background:linear-gradient(135deg,#2f7bff,#5a9bff);box-shadow:0 10px 22px rgba(47,123,255,.4)}
.fdd-icon.t-info:after{background:#2f7bff}
.fdd-icon.t-warn{background:linear-gradient(135deg,#ffb020,#ff8a3d);box-shadow:0 10px 22px rgba(255,176,32,.42)}
.fdd-icon.t-warn:after{background:#ffb020}
@keyframes fddPop{from{transform:scale(.4);opacity:0}70%{transform:scale(1.08)}to{transform:scale(1);opacity:1}}
@keyframes fddRing{0%{transform:scale(1);opacity:.28}70%,100%{transform:scale(1.65);opacity:0}}
.fdd-title{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:9px;letter-spacing:.3px}
.fdd-msg{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:22px;word-break:break-word}
.fdd-btn{display:inline-flex;align-items:center;justify-content:center;min-width:150px;padding:11px 30px;border-radius:26px;background:var(--grad-main);background-size:180% 180%;color:#fff;font-size:15px;font-weight:600;border:none;cursor:pointer;box-shadow:0 7px 18px rgba(255,36,66,.38);transition:.18s;font-family:inherit;animation:gradShift 7s ease infinite}
.fdd-btn:hover{transform:translateY(-2px);box-shadow:0 11px 24px rgba(255,36,66,.52)}
.fdd-btn:active{transform:translateY(0)}
.fdd-x{position:absolute;top:12px;right:14px;width:30px;height:30px;border-radius:50%;border:none;background:#fdf0f1;color:#bb7d86;font-size:16px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.16s}
.fdd-x:hover{background:#ffe3e7;color:var(--red)}

/* 轻量 toast (成功/信息类非阻塞提示) */
.fdd-toast{position:fixed;top:22px;left:50%;transform:translateX(-50%) translateY(-24px);background:#fff;color:var(--ink);padding:13px 24px 13px 18px;border-radius:14px;box-shadow:0 14px 40px rgba(120,8,30,.30);z-index:310;display:flex;align-items:center;gap:11px;font-size:14px;font-weight:500;opacity:0;transition:opacity .3s ease, transform .3s cubic-bezier(.34,1.56,.64,1);max-width:92vw}
.fdd-toast.on{transform:translateX(-50%) translateY(0);opacity:1}
.fdd-toast .dot{width:22px;height:22px;border-radius:50%;flex:0 0 auto;display:flex;align-items:center;justify-content:center}
.fdd-toast .dot svg{width:13px;height:13px}
.fdd-toast .dot.ok{background:linear-gradient(135deg,#16b364,#34d17c)}
.fdd-toast .dot.err{background:linear-gradient(135deg,#ff2442,#ff5c39)}
.fdd-toast .dot.info{background:linear-gradient(135deg,#2f7bff,#5a9bff)}
@media (max-width:520px){.fdd-dialog{padding:0 20px 20px}.fdd-icon{width:58px;height:58px;margin-top:22px}}