/* =====================================================================
   科研课题申报平台 · 设计系统
   主色：深青蓝（医疗信任 + 科研冷静）
   ===================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --bg:#f4f7fa;
  --bg-2:#eef3f8;
  --surface:#ffffff;
  --surface-2:#fbfdff;

  --line:#e6edf4;
  --line-2:#eef3f8;
  --line-strong:#d7e2ec;

  --text:#0e1f2e;
  --text-2:#48596b;
  --text-3:#8496a6;
  --text-4:#a9b8c6;

  --primary:#0d6b8c;
  --primary-600:#0f7ba1;
  --primary-700:#0a5a77;
  --primary-50:#eaf5fa;
  --primary-100:#d5ebf4;

  --teal:#0f8a78;
  --teal-50:#e6f6f3;
  --amber:#b8730f;
  --amber-50:#fdf2e2;
  --red:#c0392b;
  --red-50:#fdecea;
  --violet:#5b53c4;
  --violet-50:#eeecfb;

  --r-xs:6px; --r-sm:8px; --r:10px; --r-md:12px; --r-lg:16px; --r-xl:20px;

  --sh-1:0 1px 2px rgba(16,40,64,.05);
  --sh-2:0 1px 2px rgba(16,40,64,.04), 0 6px 18px -10px rgba(16,40,64,.14);
  --sh-3:0 2px 6px rgba(16,40,64,.05), 0 18px 40px -18px rgba(16,40,64,.20);
  --sh-4:0 24px 60px -20px rgba(16,40,64,.28);

  --ease:cubic-bezier(.4,0,.2,1);
  --side-w:234px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:14.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.015em;line-height:1.35;}
p{margin:0;}
a{color:var(--primary);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--primary-600);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
::selection{background:var(--primary-100);color:var(--primary-700);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:#cfdae5;border-radius:10px;border:3px solid var(--bg);}
::-webkit-scrollbar-thumb:hover{background:#b6c5d4;}

/* ---------- 3. 图标 ---------- */
.ico{
  width:18px;height:18px;flex:0 0 auto;
  stroke:currentColor;fill:none;
  stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  vertical-align:-3px;
}
.ico-sm{width:15px;height:15px;stroke-width:2;}
.ico-lg{width:22px;height:22px;}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:38px;padding:0 16px;
  border-radius:var(--r);border:1px solid transparent;
  background:var(--surface);color:var(--text-2);
  font-size:14px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:all .16s var(--ease);
  box-shadow:var(--sh-1);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none !important;}

.btn-primary{
  background:linear-gradient(180deg,var(--primary-600),var(--primary));
  color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18), 0 1px 2px rgba(13,107,140,.28), 0 8px 20px -10px rgba(13,107,140,.6);
}
.btn-primary:hover{color:#fff;background:linear-gradient(180deg,#1289b3,var(--primary-600));}

.btn-ghost{background:transparent;box-shadow:none;color:var(--text-2);}
.btn-ghost:hover{background:var(--bg-2);color:var(--text);}

.btn-line{background:var(--surface);border-color:var(--line-strong);color:var(--text-2);}
.btn-line:hover{border-color:#bfd0de;color:var(--text);}

.btn-danger{background:var(--red-50);color:var(--red);box-shadow:none;border-color:#f6d5d1;}
.btn-danger:hover{background:#fbe0dc;color:#a83125;}

.btn-success{background:var(--teal);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.16), 0 8px 20px -10px rgba(15,138,120,.6);}
.btn-success:hover{background:#0d7a6a;color:#fff;}

.btn-sm{height:31px;padding:0 11px;font-size:13px;border-radius:var(--r-sm);gap:5px;}
.btn-lg{height:46px;padding:0 24px;font-size:15px;border-radius:var(--r-md);}
.btn-block{width:100%;}
.btn-icon{width:34px;height:34px;padding:0;border-radius:var(--r-sm);}

/* ---------- 5. 表单 ---------- */
.field{margin-bottom:16px;}
.label{
  display:block;font-size:13px;font-weight:600;color:var(--text-2);
  margin-bottom:6px;letter-spacing:.01em;
}
.label .req{color:var(--red);margin-left:2px;}
.hint{font-size:12.5px;color:var(--text-3);margin-top:5px;line-height:1.6;}

.input,.select,.textarea{
  width:100%;height:40px;padding:0 13px;
  border:1px solid var(--line-strong);border-radius:var(--r);
  background:var(--surface);color:var(--text);
  font-size:14.5px;font-family:inherit;
  transition:border-color .16s var(--ease), box-shadow .16s var(--ease), background .16s var(--ease);
  appearance:none;
}
.input::placeholder,.textarea::placeholder{color:var(--text-4);}
.input:hover,.select:hover,.textarea:hover{border-color:#c3d3e0;}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3.5px rgba(13,107,140,.12);
  background:var(--surface);
}
.textarea{height:auto;min-height:96px;padding:10px 13px;line-height:1.7;resize:vertical;}
.select{
  padding-right:36px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238496a6' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
  cursor:pointer;
}
.input-sm{height:34px;font-size:13.5px;padding:0 11px;}

.input-group{position:relative;}
.input-group .ico{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  color:var(--text-4);pointer-events:none;
}
.input-group .input{padding-left:38px;}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px;}
.form-grid .full{grid-column:1 / -1;}

.check{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--text-2);cursor:pointer;}
.check input{width:16px;height:16px;margin-top:2px;accent-color:var(--primary);cursor:pointer;}

/* ---------- 6. 卡片 ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.card-h{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 20px;border-bottom:1px solid var(--line-2);
}
.card-h h3{font-size:15px;font-weight:700;}
.card-h .sub{font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:2px;}
.card-b{padding:20px;}
.card-b.tight{padding:0;}

/* ---------- 7. 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:23px;padding:0 9px;border-radius:100px;
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:currentColor;flex:0 0 auto;opacity:.85;
}
.badge.nodot::before{display:none;}
.b-blue{background:var(--primary-50);color:var(--primary);}
.b-green{background:var(--teal-50);color:var(--teal);}
.b-amber{background:var(--amber-50);color:var(--amber);}
.b-red{background:var(--red-50);color:var(--red);}
.b-gray{background:#eef2f6;color:#67788a;}
.b-violet{background:var(--violet-50);color:var(--violet);}

.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;
  border-radius:var(--r-xs);background:var(--bg-2);
  font-size:11.5px;font-weight:600;color:var(--text-2);letter-spacing:.02em;
}

/* ---------- 8. 后台骨架 ---------- */
.app{min-height:100vh;}

.side{
  position:fixed;inset:0 auto 0 0;width:var(--side-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;
  transition:transform .26s var(--ease);
}
.side-logo{
  display:flex;align-items:center;gap:10px;
  height:60px;padding:0 18px;flex:0 0 auto;
  border-bottom:1px solid var(--line-2);
}
.side-logo .mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary-600),var(--teal));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 4px 12px -4px rgba(13,107,140,.6);
}
.side-logo .mark .ico{width:17px;height:17px;stroke-width:2.1;}
.side-logo .txt{min-width:0;}
.side-logo .n{font-size:14px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.side-logo .s{font-size:11px;color:var(--text-3);letter-spacing:.04em;}

.side-nav{flex:1;overflow-y:auto;padding:14px 10px 20px;}
.nav-group{font-size:10.5px;font-weight:700;letter-spacing:.11em;color:var(--text-4);padding:14px 10px 6px;text-transform:uppercase;}
.nav-group:first-child{padding-top:2px;}
.nav-item{
  display:flex;align-items:center;gap:10px;
  height:38px;padding:0 11px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:14px;font-weight:500;
  margin-bottom:1px;position:relative;
  transition:all .15s var(--ease);
}
.nav-item .ico{color:var(--text-3);transition:color .15s var(--ease);}
.nav-item:hover{background:var(--bg-2);color:var(--text);}
.nav-item:hover .ico{color:var(--text-2);}
.nav-item.on{
  background:var(--primary-50);color:var(--primary);font-weight:600;
}
.nav-item.on .ico{color:var(--primary);}
.nav-item.on::before{
  content:"";position:absolute;left:-10px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.nav-item .cnt{
  margin-left:auto;font-size:11.5px;font-weight:700;
  background:var(--red);color:#fff;height:18px;min-width:18px;
  border-radius:9px;display:grid;place-items:center;padding:0 5px;
}

.side-foot{flex:0 0 auto;padding:10px;border-top:1px solid var(--line-2);}
.user-mini{
  display:flex;align-items:center;gap:10px;padding:8px 9px;border-radius:var(--r);
  transition:background .15s var(--ease);
}
.user-mini:hover{background:var(--bg-2);}
.avatar{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,#3b8aa8,#0f8a78);
  letter-spacing:.02em;
}
.avatar.lg{width:52px;height:52px;border-radius:14px;font-size:19px;}
.avatar.sm{width:26px;height:26px;border-radius:7px;font-size:11px;}
.user-mini .nm{font-size:13.5px;font-weight:600;line-height:1.3;}
.user-mini .rl{font-size:11.5px;color:var(--text-3);}

.main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;min-width:0;}

.top{
  position:sticky;top:0;z-index:40;
  height:60px;padding:0 28px;
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.top h1{font-size:17px;font-weight:700;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.top .crumb{font-size:12.5px;color:var(--text-3);margin-top:1px;}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px;}
.top .icon-btn{
  width:34px;height:34px;border-radius:var(--r-sm);border:1px solid transparent;
  background:transparent;color:var(--text-2);cursor:pointer;
  display:grid;place-items:center;position:relative;
  transition:all .15s var(--ease);
}
.top .icon-btn:hover{background:var(--bg-2);color:var(--text);}
.top .icon-btn .dot{
  position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:50%;
  background:var(--red);border:1.5px solid #fff;
}

.page{flex:1;padding:24px 28px 48px;max-width:1320px;width:100%;min-width:0;}

.menu-btn{display:none;}

/* ---------- 9. 统计卡 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:20px;}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px 18px 15px;position:relative;overflow:hidden;
  transition:all .2s var(--ease);
}
.stat:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);transform:translateY(-1px);}
.stat .k{font-size:12.5px;color:var(--text-3);font-weight:500;display:flex;align-items:center;gap:7px;}
.stat .v{
  font-size:30px;font-weight:700;letter-spacing:-.035em;line-height:1.15;
  margin-top:7px;font-variant-numeric:tabular-nums;
}
.stat .v small{font-size:13px;font-weight:600;color:var(--text-3);margin-left:3px;letter-spacing:0;}
.stat .foot{font-size:12px;color:var(--text-3);margin-top:5px;}
.stat .accent{
  position:absolute;right:-18px;top:-18px;width:76px;height:76px;border-radius:50%;
  opacity:.5;
}
.stat.p .accent{background:radial-gradient(circle,var(--primary-50),transparent 70%);}
.stat.g .accent{background:radial-gradient(circle,var(--teal-50),transparent 70%);}
.stat.a .accent{background:radial-gradient(circle,var(--amber-50),transparent 70%);}
.stat.r .accent{background:radial-gradient(circle,var(--red-50),transparent 70%);}

/* ---------- 10. 表格 ---------- */
.table-wrap{overflow-x:auto;}
table.tbl{width:100%;border-collapse:collapse;font-size:13.8px;}
.tbl thead th{
  text-align:left;padding:10px 14px;
  font-size:11.5px;font-weight:700;letter-spacing:.05em;color:var(--text-3);
  text-transform:uppercase;white-space:nowrap;
  background:var(--surface-2);border-bottom:1px solid var(--line);
}
.tbl tbody td{padding:13px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle;}
.tbl tbody tr:last-child td{border-bottom:none;}
.tbl tbody tr{transition:background .13s var(--ease);}
.tbl tbody tr:hover{background:#f8fbfd;}
.tbl .nm{font-weight:600;color:var(--text);}
.tbl .sub{font-size:12px;color:var(--text-3);margin-top:1px;}
.tbl .num{font-variant-numeric:tabular-nums;}
.tbl .actions{display:flex;gap:5px;justify-content:flex-end;align-items:center;}
.tbl .actions .btn-icon{width:29px;height:29px;border-radius:7px;}
.tbl .actions .btn-sm{height:29px;padding:0 9px;font-size:12.5px;}

.empty{
  text-align:center;padding:52px 24px;color:var(--text-3);
}
.empty .art{
  width:78px;height:78px;margin:0 auto 16px;border-radius:22px;
  background:linear-gradient(150deg,var(--bg-2),#fff);
  border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-4);
}
.empty .art .ico{width:30px;height:30px;stroke-width:1.5;}
.empty h4{font-size:15px;color:var(--text-2);margin-bottom:5px;}
.empty p{font-size:13.5px;max-width:340px;margin:0 auto;line-height:1.7;}

/* ---------- 11. 抽屉 ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(14,31,46,.32);
  backdrop-filter:blur(2px);z-index:80;opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease);
}
.overlay.on{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:440px;max-width:92vw;
  background:var(--surface);z-index:90;
  box-shadow:var(--sh-4);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s var(--ease);
}
.drawer.on{transform:translateX(0);}
.drawer-h{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;border-bottom:1px solid var(--line-2);flex:0 0 auto;
}
.drawer-h h3{font-size:16px;}
.drawer-b{flex:1;overflow-y:auto;padding:20px 22px;}
.drawer-f{
  flex:0 0 auto;padding:14px 22px;border-top:1px solid var(--line-2);
  display:flex;gap:10px;justify-content:flex-end;background:var(--surface-2);
}

/* ---------- 12. Toast ---------- */
.toasts{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;}
.toast{
  display:flex;align-items:center;gap:9px;
  padding:10px 16px;border-radius:var(--r-md);
  background:#12283a;color:#fff;font-size:13.5px;font-weight:500;
  box-shadow:var(--sh-3);
  animation:toastIn .3s var(--ease);
}
.toast.success{background:#0d6b58;}
.toast.error{background:#a5312a;}
.toast.info{background:#12283a;}
@keyframes toastIn{from{opacity:0;transform:translateY(-10px) scale(.97);}to{opacity:1;transform:none;}}

/* ---------- 13. 进度条 ---------- */
.bar{height:6px;border-radius:6px;background:var(--bg-2);overflow:hidden;display:flex;}
.bar span{display:block;height:100%;transition:width .5s var(--ease);}
.bar .p1{background:var(--primary);}
.bar .p2{background:var(--teal);}
.bar .p3{background:var(--amber);}
.bar .p4{background:#cfdae5;}

/* ---------- 14. 时间轴 ---------- */
.tl{position:relative;padding-left:26px;}
.tl::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1.5px;background:var(--line);}
.tl-item{position:relative;padding-bottom:20px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-24px;top:6px;width:9px;height:9px;border-radius:50%;
  background:#fff;border:2px solid var(--line-strong);
}
.tl-item.hot::before{border-color:var(--primary);background:var(--primary);}
.tl-item .th{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:3px;}
.tl-item .tt{font-size:13px;font-weight:600;}
.tl-item .tm{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.tl-item .td{font-size:13px;color:var(--text-2);line-height:1.65;}

/* ---------- 15. 工具类 ---------- */
.row{display:flex;align-items:center;gap:10px;}
.row.between{justify-content:space-between;}
.row.wrap{flex-wrap:wrap;}
.col{display:flex;flex-direction:column;}
.grow{flex:1;min-width:0;}
.mt-0{margin-top:0 !important;}
.mt-1{margin-top:8px;}
.mt-2{margin-top:16px;}
.mt-3{margin-top:24px;}
.mb-0{margin-bottom:0 !important;}
.mb-1{margin-bottom:8px;}
.mb-2{margin-bottom:16px;}
.mb-3{margin-bottom:24px;}
.muted{color:var(--text-3);}
.small{font-size:13px;}
.xs{font-size:12px;}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.right{text-align:right;}
.center{text-align:center;}
.nowrap{white-space:nowrap;}
.divider{height:1px;background:var(--line-2);margin:16px 0;}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.grid-2-1{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:16px;align-items:start;}

/* ---------- 16. 前台站点 ---------- */
.site{min-height:100vh;display:flex;flex-direction:column;}
.site-head{
  position:sticky;top:0;z-index:50;height:64px;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.site-head .in{
  max-width:1180px;margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;gap:28px;
}
.site-nav{display:flex;gap:4px;align-items:center;}
.site-nav a{
  padding:7px 12px;border-radius:var(--r-sm);font-size:14px;font-weight:500;color:var(--text-2);
  transition:all .15s var(--ease);
}
.site-nav a:hover{background:var(--bg-2);color:var(--text);}
.site-nav a.on{color:var(--primary);font-weight:600;background:var(--primary-50);}
.site-body{flex:1;}
.site-wrap{max-width:1180px;margin:0 auto;padding:0 24px;}

.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0a4f68 0%,#0d6b8c 46%,#0f8a78 100%);
  color:#fff;padding:52px 0 56px;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 30%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 30%,transparent 76%);
}
.hero-in{position:relative;z-index:2;max-width:1180px;margin:0 auto;padding:0 24px;}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  height:26px;padding:0 12px;border-radius:100px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  font-size:12px;font-weight:600;letter-spacing:.03em;margin-bottom:16px;
}
.hero h1{font-size:clamp(24px,3.4vw,34px);letter-spacing:-.03em;margin-bottom:12px;}
.hero .lead{font-size:15px;color:rgba(255,255,255,.88);max-width:690px;line-height:1.78;}
.hero .cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;}
.btn-white{background:#fff;color:var(--primary-700);box-shadow:0 8px 24px -10px rgba(0,0,0,.4);}
.btn-white:hover{color:var(--primary-700);background:#f4fafc;}
.btn-outline-w{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);box-shadow:none;}
.btn-outline-w:hover{background:rgba(255,255,255,.18);color:#fff;}
.hero-stats{display:flex;gap:34px;margin-top:34px;flex-wrap:wrap;}
.hero-stats .n{font-size:24px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.hero-stats .l{font-size:12.5px;color:rgba(255,255,255,.72);margin-top:1px;}

.section{padding:38px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:19px;letter-spacing:-.02em;}
.section-head .desc{font-size:13.5px;color:var(--text-3);margin-top:3px;}

/* 置顶大卡 */
.pin-card{
  display:block;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#fff 0%,#f7fbfd 60%,#eef8f6 100%);
  border:1px solid var(--line);border-radius:var(--r-xl);
  padding:26px 28px;box-shadow:var(--sh-2);
  transition:all .22s var(--ease);
}
.pin-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:#cfe2ee;}
.pin-card .pin-tag{
  position:absolute;top:0;right:0;
  background:linear-gradient(135deg,#c0392b,#e05a3d);color:#fff;
  font-size:11.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 16px;border-radius:0 var(--r-xl) 0 14px;
  display:flex;align-items:center;gap:5px;
}
.pin-card .pt{font-size:21px;font-weight:700;letter-spacing:-.025em;margin:10px 0 10px;color:var(--text);}
.pin-card .meta{display:flex;gap:7px 18px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:16px;}

/* 课题小卡 */
.p-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px 20px;height:100%;
  transition:all .2s var(--ease);
}
.p-card:hover{border-color:#cfe2ee;box-shadow:var(--sh-2);transform:translateY(-2px);}
.p-card .top-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:10px;}
.p-card h3{font-size:15.5px;line-height:1.5;letter-spacing:-.01em;margin-bottom:8px;}
.p-card h3 a{color:var(--text);}
.p-card h3 a:hover{color:var(--primary);}
.p-card .sum{font-size:13px;color:var(--text-2);line-height:1.65;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-card .foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-3);
}

.site-foot{
  border-top:1px solid var(--line);padding:26px 0;margin-top:20px;
  font-size:12.5px;color:var(--text-3);text-align:center;line-height:1.9;
}

/* ---------- 17. 登录页 ---------- */
.auth{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:#fff;}
.auth-art{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(150deg,#0a4f68 0%,#0d6b8c 48%,#0f8a78 100%);
  padding:52px 56px;display:flex;flex-direction:column;justify-content:space-between;
}
.auth-art::after{
  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:40px 40px;
  mask-image:radial-gradient(ellipse 90% 80% at 30% 40%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 30% 40%,#000 20%,transparent 78%);
}
.auth-art > *{position:relative;z-index:2;}
.auth-art .brand{display:flex;align-items:center;gap:11px;}
.auth-art .brand .mark{
  width:38px;height:38px;border-radius:11px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  display:grid;place-items:center;
}
.auth-art .brand .n{font-size:15.5px;font-weight:700;letter-spacing:-.01em;}
.auth-art .brand .s{font-size:11.5px;color:rgba(255,255,255,.66);letter-spacing:.05em;}
.auth-art .big{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.03em;line-height:1.45;margin-bottom:16px;}
.auth-art .big em{font-style:normal;color:#8ee0d0;}
.auth-art .desc{font-size:14px;color:rgba(255,255,255,.78);line-height:1.8;max-width:400px;}
.auth-art .feats{display:flex;flex-direction:column;gap:13px;margin-top:34px;}
.auth-art .feat{display:flex;align-items:center;gap:11px;font-size:13.5px;color:rgba(255,255,255,.86);}
.auth-art .feat .ic{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;
}
.auth-art .feat .ic .ico{width:14px;height:14px;stroke-width:2;}
.auth-art .foot{font-size:12px;color:rgba(255,255,255,.5);}

.auth-form-wrap{display:flex;align-items:center;justify-content:center;padding:40px 32px;overflow-y:auto;}
.auth-form{width:100%;max-width:376px;}
.auth-form .h{margin-bottom:26px;}
.auth-form h2{font-size:25px;letter-spacing:-.03em;margin-bottom:7px;}
.auth-form .sub{font-size:13.5px;color:var(--text-3);}
.auth-form .input{height:44px;}
.auth-form .btn-lg{height:46px;}
.auth-alt{margin-top:22px;font-size:13.5px;color:var(--text-3);text-align:center;}
.auth-alt a{font-weight:600;}
.alert{
  display:flex;align-items:flex-start;gap:9px;
  padding:11px 14px;border-radius:var(--r);font-size:13.5px;line-height:1.6;
  margin-bottom:18px;
}
.alert.err{background:var(--red-50);color:#9b2d22;border:1px solid #f7d7d3;}
.alert.ok{background:var(--teal-50);color:#0a6f60;border:1px solid #ccece5;}
.alert.info{background:var(--primary-50);color:#0a5470;border:1px solid #d2e8f2;}
.alert .ico{margin-top:2px;}

/* ---------- 18. 错误页 ---------- */
.err-page{
  min-height:100vh;display:grid;place-items:center;padding:32px;
  background:radial-gradient(ellipse 70% 60% at 50% 0%,#e9f3f8,var(--bg));
}
.err-in{text-align:center;max-width:420px;}
.err-code{
  font-size:76px;font-weight:800;letter-spacing:-.05em;line-height:1;
  background:linear-gradient(140deg,var(--primary),var(--teal));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.err-in h2{margin:14px 0 8px;font-size:19px;}
.err-in p{color:var(--text-3);font-size:14px;margin-bottom:24px;}

/* ---------- 18b. 前台头部组件 ---------- */
.brand-lock{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand-lock .mark{
  width:33px;height:33px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary-600),var(--teal));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 4px 12px -4px rgba(13,107,140,.55);
}
.brand-lock .mark .ico{width:17px;height:17px;stroke-width:2.1;}
.brand-lock .txt{display:flex;flex-direction:column;line-height:1.2;}
.brand-lock .n{font-size:14.5px;font-weight:700;letter-spacing:-.015em;white-space:nowrap;}
.brand-lock .s{font-size:10.5px;color:var(--text-3);letter-spacing:.03em;white-space:nowrap;}

.site-actions{margin-left:auto;display:flex;align-items:center;gap:8px;flex:0 0 auto;}

/* 移动端折叠菜单 */
.mnav{display:none;position:relative;flex:0 0 auto;}
.mnav summary{
  list-style:none;width:34px;height:34px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--text-2);
}
.mnav summary::-webkit-details-marker{display:none;}
.mnav summary:hover{background:var(--bg-2);}
.mnav .menu{
  position:absolute;left:0;top:calc(100% + 10px);width:172px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:6px;z-index:70;
  animation:menuIn .16s var(--ease);
}
.mnav .menu a{
  display:block;padding:9px 11px;border-radius:var(--r-xs);
  font-size:14px;color:var(--text-2);font-weight:500;
}
.mnav .menu a:hover{background:var(--bg-2);color:var(--text);}

.icon-btn{
  width:34px;height:34px;border-radius:var(--r-sm);
  border:1px solid transparent;background:transparent;color:var(--text-2);
  cursor:pointer;display:grid;place-items:center;position:relative;
  transition:all .15s var(--ease);
}
.icon-btn:hover{background:var(--bg-2);color:var(--text);}
.icon-btn .dot{
  position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:50%;
  background:var(--red);border:1.5px solid #fff;
}

.usermenu{position:relative;}
.usermenu summary{
  list-style:none;display:flex;align-items:center;gap:7px;
  height:36px;padding:0 10px 0 4px;border-radius:100px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  color:var(--text-2);font-size:13.5px;font-weight:600;
  transition:all .15s var(--ease);
}
.usermenu summary::-webkit-details-marker{display:none;}
.usermenu summary:hover{border-color:var(--line-strong);background:var(--surface-2);}
.usermenu .menu{
  position:absolute;right:0;top:calc(100% + 8px);width:216px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:6px;z-index:70;
  animation:menuIn .16s var(--ease);
}
@keyframes menuIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:none;}}
.usermenu .mhead{padding:8px 10px 10px;border-bottom:1px solid var(--line-2);margin-bottom:6px;}
.usermenu .mhead .n{font-size:13.5px;font-weight:700;}
.usermenu .mhead .r{font-size:11.5px;color:var(--text-3);margin-top:2px;}
.usermenu .menu a{
  display:flex;align-items:center;gap:9px;padding:8px 10px;
  border-radius:var(--r-xs);font-size:13.5px;color:var(--text-2);
}
.usermenu .menu a:hover{background:var(--bg-2);color:var(--text);}
.usermenu .menu a.danger{color:var(--red);}
.usermenu .menu a.danger:hover{background:var(--red-50);}
.usermenu .menu .sep{height:1px;background:var(--line-2);margin:6px 0;}

/* 侧栏待上线项 */
.nav-item.dis{opacity:.52;cursor:not-allowed;}
.nav-item.dis:hover{background:transparent;}
.nav-item.dis:hover .ico{color:var(--text-3);}
.nav-item .soon{
  margin-left:auto;font-size:9.5px;font-weight:700;letter-spacing:.05em;
  color:var(--text-4);background:var(--bg-2);padding:2px 6px;border-radius:5px;
}

/* ---------- 18c. 通用小件 ---------- */
.q-item{
  display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:var(--r);
  transition:background .15s var(--ease);
}
.q-item:hover{background:var(--surface-2);}
.q-item .qi{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;background:var(--primary-50);color:var(--primary);
}
.q-item .qt{display:block;font-size:13.5px;font-weight:600;color:var(--text);line-height:1.4;}
.q-item .qd{display:block;font-size:12px;color:var(--text-3);margin-top:1px;}
.q-item .ico.go{margin-left:auto;color:var(--text-4);}
.q-item .btn-icon{width:30px;height:30px;}

.proj-line{padding:14px 0;border-bottom:1px solid var(--line-2);}
.proj-line:last-child{border-bottom:none;padding-bottom:0;}
.proj-line .pt{font-size:14px;font-weight:600;margin-bottom:6px;display:flex;align-items:center;gap:8px;}
.proj-line .pm{display:flex;gap:14px;font-size:12.5px;color:var(--text-3);margin-bottom:9px;flex-wrap:wrap;}
.proj-line .pm b{color:var(--text-2);font-variant-numeric:tabular-nums;font-weight:600;}


/* ---------- 18d. 上传区与步骤条 ---------- */
.upload{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  padding:26px 18px;border:1.5px dashed var(--line-strong);border-radius:var(--r-md);
  background:var(--surface-2);cursor:pointer;text-align:center;
  transition:all .16s var(--ease);
}
.upload:hover{border-color:var(--primary);background:var(--primary-50);}
.upload input[type=file]{display:none;}
.upload .ico{width:22px;height:22px;color:var(--text-4);}
.upload:hover .ico{color:var(--primary);}
.upload .ut{font-size:13.5px;font-weight:600;color:var(--text-3);}
.upload .uh{font-size:11.5px;color:var(--text-4);}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.step-i .sn{
  width:24px;height:24px;border-radius:7px;background:var(--bg-2);color:var(--text-3);
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-bottom:7px;
  transition:all .16s var(--ease);
}
.step-i.done .sn{background:var(--teal-50);color:var(--teal);}
.step-i .st{display:block;font-size:13px;font-weight:600;color:var(--text-2);}
.step-i .sd{display:block;font-size:11.5px;color:var(--text-4);line-height:1.55;margin-top:1px;}

@media (max-width:640px){
  .steps{grid-template-columns:repeat(2,1fr);gap:14px 12px;}
}


/* ---------- 18e. 审批选择 ---------- */
.pick-group{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.pick{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:16px 10px;border:1.5px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);cursor:pointer;text-align:center;
  transition:all .16s var(--ease);
}
.pick input{display:none;}
.pick .ico{color:var(--text-4);margin-bottom:4px;transition:color .16s var(--ease);}
.pick .pt{font-size:14px;font-weight:700;color:var(--text-2);}
.pick .pd{font-size:11.5px;color:var(--text-4);line-height:1.4;}
.pick:hover{border-color:var(--line-strong);background:var(--surface-2);}
.pick.on{border-color:var(--primary);background:var(--primary-50);}
.pick.on .ico,.pick.on .pt{color:var(--primary);}
.pick[data-pick="reject"].on{border-color:var(--red);background:var(--red-50);}
.pick[data-pick="reject"].on .ico,.pick[data-pick="reject"].on .pt{color:var(--red);}

.chips{display:flex;flex-wrap:wrap;gap:7px;}
.chip{
  display:inline-flex;align-items:center;padding:6px 12px;border-radius:100px;
  border:1px solid var(--line-strong);background:var(--surface);
  font-size:12.5px;font-weight:500;color:var(--text-2);cursor:pointer;
  transition:all .15s var(--ease);
}
.chip input{display:none;}
.chip:hover{border-color:var(--primary);color:var(--primary);}
.chip.on{background:var(--red-50);border-color:var(--red);color:var(--red);font-weight:600;}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1080px){
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-2-1{grid-template-columns:1fr;}
  .auth{grid-template-columns:1fr;}
  .auth-art{display:none;}
}
@media (max-width:860px){
  :root{--side-w:0px;}
  .side{
    transform:translateX(-100%);width:250px;box-shadow:var(--sh-4);
  }
  .side.on{transform:translateX(0);}
  .main{margin-left:0;}
  .menu-btn{display:grid;place-items:center;width:34px;height:34px;border-radius:var(--r-sm);
    border:1px solid var(--line);background:#fff;color:var(--text-2);cursor:pointer;}
  .top{padding:0 16px;}
  .top h1{font-size:15.5px;}
  .page{padding:16px 14px 40px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
  .stat{padding:13px 14px;}
  .stat .v{font-size:24px;}
  .form-grid{grid-template-columns:1fr;}
  .drawer{width:100%;max-width:100%;}
  .hero{padding:34px 0 38px;}
  .hero-stats{gap:24px;margin-top:26px;}
  .hero-stats .n{font-size:20px;}
  .section{padding:26px 0;}
  .site-head .in{padding:0 16px;gap:13px;}
  .site-nav{display:none;}
  .mnav{display:block;}
  .brand-lock .s{display:none;}
  .usermenu .nm{display:none;}
  .site-actions .btn-ghost{display:none;}
  .top-actions .btn-ghost{display:none;}
  .site-wrap{padding:0 16px;}
  .pin-card{padding:20px 18px;}
  .pin-card .pt{font-size:17px;}
  .auth-form-wrap{padding:28px 20px;}
  .card-b{padding:16px;}
  .card-h{padding:14px 16px;}
  .tbl thead th,.tbl tbody td{padding:10px 12px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}