/* 莫兰迪设计系统 · 国产API比价站 (2026-08-08)
   令牌与 donglingpeizhi.online 全站 design.css 一致，单文件自包含 */
:root{
  --bg-0:#eeebe4; --bg-1:#e6e2d9;
  --card:rgba(255,255,255,0.55); --card-strong:rgba(255,255,255,0.78);
  --border:rgba(148,138,116,0.28); --border-soft:rgba(120,113,98,0.14);
  --gold:#b3a07f; --gold-bright:#c3b393; --gold-deep:#95855f;
  --accent:#8b9dad; --ok:#8fa884; --warn:#c4a86e; --danger:#c0836f; --info:#8fa3b8;
  --text:#3f3c36; --text-dim:#6b675e; --text-faint:#9a958a;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-0); color:var(--text); font-family:var(--font-sans);
  line-height:1.7; font-size:15px;
}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(120,113,98,0.10) 1px,transparent 1px);
  background-size:26px 26px;}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* 顶部导航 */
.topnav{position:sticky;top:0;z-index:100;background:rgba(238,235,228,0.82);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border-soft);}
.nav-inner{max-width:1140px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:28px;height:62px;}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);
  font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:2px;flex-shrink:0;}
.nav-brand .seal{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;
  justify-content:center;font-size:16px;color:#faf8f2;flex-shrink:0;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));}
.nav-links{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-links a{color:var(--text-dim);text-decoration:none;font-size:14px;
  padding:7px 14px;border-radius:999px;transition:all .2s;}
.nav-links a:hover{color:var(--gold-deep);background:rgba(179,160,127,0.14);}
.nav-links a.active{color:var(--gold-deep);background:rgba(179,160,127,0.18);font-weight:600;}

/* 页头 */
.page-head{padding:44px 0 26px;text-align:center;}
.kicker{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--gold-deep);
  background:rgba(179,160,127,0.14);border:1px solid var(--border);
  padding:4px 14px;border-radius:999px;margin-bottom:14px;}
.page-head h1{font-family:var(--font-serif);font-size:clamp(28px,4.4vw,40px);
  font-weight:700;color:var(--text);line-height:1.35;
  background:linear-gradient(180deg,var(--text) 30%,var(--gold-deep));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.page-head p.sub{margin-top:12px;color:var(--text-dim);font-size:15px;max-width:640px;margin-inline:auto;}
.meta-line{margin-top:14px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-dim);
  background:var(--card);border:1px solid var(--border-soft);padding:5px 12px;border-radius:999px;}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);}

/* Banner 预警 */
.alert{background:rgba(196,168,110,0.14);border:1px solid rgba(196,168,110,0.45);
  border-radius:12px;padding:13px 18px;margin:0 0 30px;display:flex;gap:12px;align-items:flex-start;}
.alert b{color:var(--gold-deep);}
.alert p{font-size:13.5px;color:var(--text-dim);flex:1}
.alert a{color:var(--gold-deep);text-decoration:underline;}

/* Section */
.section{padding:34px 0 10px;}
.section-title{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.section-title h2{font-family:var(--font-serif);font-size:22px;font-weight:700;white-space:nowrap;}
.section-title .line{flex:1;height:1px;background:linear-gradient(90deg,var(--gold),transparent);}
.section-title .hint{font-size:12.5px;color:var(--text-faint);white-space:nowrap;}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--border-soft);border-radius:14px;
  padding:20px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 1px 3px rgba(120,113,98,0.08);}

/* 免费额度卡片网格 */
.free-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;}
.free-card{background:var(--card);border:1px solid var(--border-soft);border-radius:14px;
  padding:16px 18px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:.2s;display:flex;flex-direction:column;gap:8px;}
.free-card:hover{transform:translateY(-2px);border-color:var(--border);}
.free-card .fc-top{display:flex;align-items:center;gap:10px;}
.free-card .fc-logo{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;
  justify-content:center;font-family:var(--font-serif);font-weight:700;font-size:14px;color:#fff;}
.free-card h3{font-size:15px;font-weight:700;}
.free-card .quota{font-family:var(--font-serif);font-size:21px;font-weight:700;color:var(--gold-deep);}
.free-card .fc-note{font-size:12.5px;color:var(--text-dim);flex:1;}
.free-card a{font-size:12.5px;color:var(--accent);text-decoration:none;}
.free-card a:hover{text-decoration:underline;}

/* 价格表 */
.table-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--border-soft);
  background:var(--card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
table{width:100%;border-collapse:collapse;min-width:760px;font-size:13.5px;}
th{background:rgba(139,157,173,0.22);color:var(--text);font-weight:700;text-align:left;
  padding:11px 14px;font-size:13px;white-space:nowrap;
  position:sticky;top:0;z-index:5;}
td{padding:10px 14px;border-top:1px solid var(--border-soft);vertical-align:middle;}
tbody tr:hover{background:rgba(179,160,127,0.07);}
td .price{font-variant-numeric:tabular-nums;font-weight:600;}
td .price.min{color:var(--ok);}
td .src{font-size:11.5px;color:#8a8578;}
tr.model-head td{background:rgba(238,235,228,0.6);font-weight:700;font-size:13.5px;}
.pill{display:inline-block;font-size:11px;padding:1px 8px;border-radius:999px;
  background:rgba(143,168,132,0.16);color:var(--ok);border:1px solid rgba(143,168,132,0.35);}
.pill.warn{background:rgba(196,168,110,0.16);color:var(--warn);border-color:rgba(196,168,110,0.4);}
.pill.new{background:rgba(139,157,173,0.16);color:var(--accent);border-color:rgba(139,157,173,0.4);}

/* 计算器 */
.calc-grid{display:grid;grid-template-columns:340px 1fr;gap:18px;}
@media(max-width:860px){.calc-grid{grid-template-columns:1fr;}}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:5px;font-weight:600;}
.field input,.field select{width:100%;padding:9px 12px;border:1px solid var(--border);
  border-radius:9px;background:rgba(255,255,255,0.7);color:var(--text);font-size:14px;
  outline:none;transition:.2s;font-family:var(--font-sans);}
.field input:focus,.field select:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(179,160,127,0.18);}
.btn{display:inline-block;border:none;cursor:pointer;border-radius:10px;padding:10px 22px;
  font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  transition:.2s;font-family:var(--font-sans);}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--text-dim);border:1px solid var(--border);}
.btn-ghost:hover{color:var(--text);}
.calc-result{min-height:120px;}
.calc-result h3{font-size:15px;margin-bottom:10px;color:var(--text);}
.result-row{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;
  border-radius:9px;font-size:13.5px;}
.result-row:nth-child(odd){background:rgba(179,160,127,0.06);}
.result-row .cost{font-weight:700;font-variant-numeric:tabular-nums;}
.result-row.best{background:rgba(143,168,132,0.14);border:1px solid rgba(143,168,132,0.4);}
.result-row .rank-tag{font-size:11px;background:var(--ok);color:#fff;border-radius:999px;
  padding:1px 8px;margin-right:6px;}
.result-row .mname{font-weight:600;}
.monthly-note{margin-top:12px;font-size:12.5px;color:var(--text-faint);}
.empty-state{color:var(--text-faint);font-size:13.5px;padding:18px 0;}

/* 赞助位 */
.sponsor-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;}
.sponsor-slot{background:var(--card);border:1.5px dashed var(--border);border-radius:14px;
  padding:26px 18px;text-align:center;color:var(--text-faint);font-size:13px;
  display:flex;flex-direction:column;gap:8px;align-items:center;justify-content:center;
  min-height:110px;transition:.2s;}
.sponsor-slot b{color:var(--text-dim);font-size:14px;}

/* Footer */
footer{margin-top:50px;padding:26px 0 40px;border-top:1px solid var(--border-soft);
  color:var(--text-faint);font-size:12.5px;line-height:1.9;}
footer a{color:var(--accent);text-decoration:none;}
footer a:hover{text-decoration:underline;}
.sources-list{display:flex;flex-wrap:wrap;gap:8px 16px;margin:8px 0 12px;}

/* 动画 */
.fade-up{opacity:0;transform:translateY(10px);animation:fadeUp .5s ease forwards;}
.d1{animation-delay:.05s}.d2{animation-delay:.12s}.d3{animation-delay:.2s}.d4{animation-delay:.28s}
@keyframes fadeUp{to{opacity:1;transform:none}}
@media(print){
  body::before{display:none}
  .card,.free-card,.table-wrap,.sponsor-slot{background:#fff;backdrop-filter:none;
    box-shadow:none;border-color:#ddd}
  .topnav{position:static}
}

/* 导航图标尺寸 */
.nav-links a svg.nic{width:15px;height:15px;vertical-align:-2px;margin-right:5px;color:inherit;}
.nav-links a svg.nic{display:inline-block;}