/* ============================================================
   名 与 言 · 起名文化知识站
   纸墨风格 / 亮色主题
   ============================================================ */

:root{
  --paper:      #faf7f1;
  --paper-2:    #f4efe5;
  --paper-3:    #ece4d6;
  --ink:        #201c18;
  --ink-2:      #46403a;
  --ink-3:      #7b7367;
  --line:       #e2d8c8;
  --line-2:     #d3c6b1;
  --seal:       #a8322a;   /* 朱砂 */
  --seal-soft:  #c25a4e;
  --jade:       #2f5d55;   /* 青绿 */
  --gold:       #a9863f;
  --card:       #fffdf9;

  --font-serif: "Songti SC","STSong","Source Han Serif SC","Noto Serif SC","Noto Serif CJK SC","SimSun",Georgia,"Times New Roman",serif;
  --font-kai:   "Kaiti SC","STKaiti","KaiTi","楷体","Noto Serif SC",serif;
  --font-sans:  -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;

  --w: 1120px;
  --shadow-s: 0 1px 2px rgba(60,48,30,.05), 0 4px 14px rgba(60,48,30,.05);
  --shadow-m: 0 2px 4px rgba(60,48,30,.05), 0 12px 32px rgba(60,48,30,.08);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(168,50,42,.030) 0, transparent 42%),
    radial-gradient(circle at 84% 78%, rgba(47,93,85,.030) 0, transparent 46%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.028'/%3E%3C/svg%3E");
  color:var(--ink);
  font-family:var(--font-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
::selection{ background:rgba(168,50,42,.16); }

/* ---------- 阅读进度 ---------- */
.progress{
  position:fixed; top:0; left:0; height:2px; width:0;
  background:linear-gradient(90deg,var(--seal),var(--gold));
  z-index:200; transition:width .12s linear;
}

/* ---------- 页头 ---------- */
.site-head{
  position:sticky; top:0; z-index:120;
  background:rgba(250,247,241,.88);
  backdrop-filter:saturate(1.4) blur(10px);
  -webkit-backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{
  max-width:var(--w); margin:0 auto; padding:0 26px;
  height:68px; display:flex; align-items:center; gap:28px;
}
.brand{ display:flex; align-items:baseline; gap:11px; flex:0 0 auto; }
.brand-seal{
  width:34px; height:34px; border-radius:5px; flex:0 0 auto;
  background:var(--seal); color:#fff;
  display:grid; place-items:center; align-self:center;
  font-family:var(--font-serif); font-size:15px; line-height:1;
  letter-spacing:0; font-weight:700;
  box-shadow:0 2px 8px rgba(168,50,42,.28);
  transform:rotate(-2deg);
}
.brand-name{ font-size:20px; letter-spacing:.22em; font-weight:700; }
.brand-sub{ font-family:var(--font-sans); font-size:11px; letter-spacing:.16em; color:var(--ink-3); }

.nav{ margin-left:auto; display:flex; align-items:center; gap:2px; flex-wrap:nowrap; }
.nav a{
  font-family:var(--font-sans); font-size:13.5px; letter-spacing:.04em;
  color:var(--ink-2); padding:8px 11px; border-radius:6px;
  position:relative; white-space:nowrap; transition:color .18s, background .18s;
}
.nav a:hover{ color:var(--seal); background:rgba(168,50,42,.055); }
.nav a.active{ color:var(--seal); font-weight:600; }
.nav a.active::after{
  content:""; position:absolute; left:11px; right:11px; bottom:3px;
  height:2px; background:var(--seal); border-radius:2px;
}
.nav-toggle{
  display:none; margin-left:auto; background:none; border:1px solid var(--line-2);
  border-radius:7px; color:var(--ink-2); font-family:var(--font-sans);
  font-size:13px; padding:6px 12px; cursor:pointer;
}

/* ---------- 版心 ---------- */
.wrap{ max-width:var(--w); margin:0 auto; padding:0 26px; }
.wrap-narrow{ max-width:820px; margin:0 auto; padding:0 26px; }

/* ---------- 首页 Hero ---------- */
.hero{ padding:96px 0 76px; position:relative; overflow:hidden; }
.hero::after{
  content:"名"; position:absolute; right:-40px; top:20px;
  font-size:380px; line-height:1; color:rgba(168,50,42,.045);
  font-family:var(--font-serif); pointer-events:none; user-select:none;
}
.hero-eyebrow{
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.3em;
  color:var(--seal); margin-bottom:26px; display:flex; align-items:center; gap:14px;
}
.hero-eyebrow::before{ content:""; width:44px; height:1px; background:var(--seal); opacity:.5; }
.hero h1{
  font-size:clamp(38px,6vw,68px); line-height:1.24; margin:0 0 8px;
  letter-spacing:.05em; font-weight:700;
}
.hero h1 .accent{ color:var(--seal); }
.hero .sub{
  font-family:var(--font-kai); font-size:clamp(18px,2.2vw,23px);
  color:var(--ink-2); letter-spacing:.1em; margin:0 0 30px; line-height:1.8;
}
.hero p.lead{
  max-width:640px; color:var(--ink-2); font-size:17px; line-height:2.05;
  margin:0 0 38px;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }

.btn{
  display:inline-flex; align-items:center; gap:9px;
  font-family:var(--font-sans); font-size:14px; letter-spacing:.06em;
  padding:12px 26px; border-radius:8px; border:1px solid var(--seal);
  background:var(--seal); color:#fff; cursor:pointer;
  transition:transform .18s, box-shadow .18s, background .18s;
  box-shadow:0 4px 14px rgba(168,50,42,.22);
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 8px 22px rgba(168,50,42,.28); }
.btn.ghost{ background:transparent; color:var(--seal); box-shadow:none; border-color:var(--line-2); }
.btn.ghost:hover{ background:rgba(168,50,42,.05); border-color:var(--seal); box-shadow:none; }

/* ---------- 通用区块 ---------- */
.section{ padding:74px 0; }
.section.tight{ padding:52px 0; }
.section + .section{ border-top:1px solid var(--line); }

.sec-head{ margin-bottom:44px; max-width:760px; }
.sec-num{
  font-family:var(--font-sans); font-size:12px; letter-spacing:.28em;
  color:var(--seal); margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(26px,3.4vw,36px); margin:0 0 12px; letter-spacing:.05em;
  line-height:1.4;
}
.sec-head p{ color:var(--ink-2); margin:0; line-height:2; }
.sec-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- 卡片 ---------- */
.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); }
.grid-3{ grid-template-columns:repeat(auto-fit,minmax(258px,1fr)); }
.grid-4{ grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); }

.card{
  background:var(--card); border:1px solid var(--line); border-radius:12px;
  padding:28px 26px; box-shadow:var(--shadow-s);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  display:flex; flex-direction:column;
}
a.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-m); border-color:var(--line-2); }
.card .ci{
  font-family:var(--font-serif); font-size:26px; color:var(--seal);
  line-height:1; margin-bottom:16px; letter-spacing:.08em;
}
.card h3{
  font-size:20px; margin:0 0 10px; letter-spacing:.08em; font-weight:700;
}
.card p{ margin:0; color:var(--ink-2); font-size:15.5px; line-height:1.95; }
.card .more{
  margin-top:18px; font-family:var(--font-sans); font-size:13px;
  color:var(--seal); letter-spacing:.1em;
}
a.card:hover .more{ text-decoration:underline; text-underline-offset:4px; }
.card-tag{
  font-family:var(--font-sans); font-size:11.5px; letter-spacing:.14em;
  color:var(--ink-3); margin-bottom:12px;
}

/* ---------- 立场声明条 ---------- */
.stance{
  background:linear-gradient(180deg,var(--paper-2),var(--paper));
  border:1px solid var(--line); border-left:3px solid var(--seal);
  border-radius:0 12px 12px 0; padding:30px 34px; box-shadow:var(--shadow-s);
}
.stance h3{ margin:0 0 14px; font-size:19px; letter-spacing:.1em; }
.stance p{ margin:0 0 10px; color:var(--ink-2); font-size:15.5px; line-height:2; }
.stance p:last-child{ margin-bottom:0; }
.stance .not{
  font-family:var(--font-kai); color:var(--ink); letter-spacing:.03em;
}

/* ---------- 文章页 ---------- */
.layout{
  display:grid; grid-template-columns:minmax(0,1fr) 216px; gap:64px;
  align-items:start; padding:56px 0 90px;
}
.article{ min-width:0; max-width:760px; }
.article-head{ padding-bottom:34px; border-bottom:1px solid var(--line); margin-bottom:44px; }
.crumb{
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.16em;
  color:var(--ink-3); margin-bottom:20px;
}
.crumb a:hover{ color:var(--seal); }
.article-head h1{
  font-size:clamp(30px,4.4vw,44px); line-height:1.35; margin:0 0 16px;
  letter-spacing:.05em;
}
.article-head .dek{
  font-family:var(--font-kai); font-size:17.5px; color:var(--ink-2);
  line-height:1.95; margin:0; letter-spacing:.03em;
}

.article h2{
  font-size:26px; margin:60px 0 20px; letter-spacing:.06em;
  line-height:1.5; scroll-margin-top:92px; position:relative;
  padding-left:22px;
}
.article h2::before{
  content:""; position:absolute; left:0; top:.42em;
  width:4px; height:1em; background:var(--seal); border-radius:2px;
}
.article h3{
  font-size:19.5px; margin:42px 0 14px; letter-spacing:.06em;
  color:var(--ink); scroll-margin-top:92px;
}
.article h4{
  font-size:17px; margin:30px 0 10px; letter-spacing:.06em; color:var(--jade);
}
.article p{ margin:0 0 20px; line-height:2.05; color:var(--ink-2); }
.article p strong, .article li strong{ color:var(--ink); font-weight:700; }
.article ul, .article ol{ margin:0 0 22px; padding-left:4px; list-style:none; }
.article li{
  position:relative; padding-left:24px; margin-bottom:12px;
  line-height:2.0; color:var(--ink-2);
}
.article ul > li::before{
  content:""; position:absolute; left:5px; top:.86em;
  width:6px; height:6px; border-radius:50%;
  background:var(--seal); opacity:.55;
}
.article ol{ counter-reset:li; }
.article ol > li{ counter-increment:li; padding-left:30px; }
.article ol > li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute; left:0; top:0;
  font-family:var(--font-sans); font-size:13px; color:var(--seal);
  line-height:2.6;
}
.article a:not(.btn){
  color:var(--seal); border-bottom:1px solid rgba(168,50,42,.32);
  transition:border-color .18s, background .18s;
}
.article a:not(.btn):hover{ border-bottom-color:var(--seal); background:rgba(168,50,42,.06); }

/* 引文 */
.quote{
  margin:30px 0; padding:22px 28px; background:var(--paper-2);
  border-left:3px solid var(--line-2); border-radius:0 10px 10px 0;
  font-family:var(--font-kai); font-size:17px; line-height:2;
  color:var(--ink); letter-spacing:.03em;
}
.quote cite{
  display:block; margin-top:12px; font-family:var(--font-sans);
  font-size:12.5px; font-style:normal; letter-spacing:.12em; color:var(--ink-3);
}

/* 提示块 */
.note{
  margin:28px 0; padding:22px 26px; border-radius:10px;
  border:1px solid var(--line); background:var(--card);
  box-shadow:var(--shadow-s);
}
.note .note-t{
  font-family:var(--font-sans); font-size:12px; letter-spacing:.2em;
  color:var(--jade); margin-bottom:10px; display:block;
}
.note p{ margin:0 0 12px; font-size:15.5px; }
.note p:last-child{ margin-bottom:0; }
.note.warn{ border-left:3px solid var(--seal); }
.note.warn .note-t{ color:var(--seal); }

/* 名词卡 */
.termbox{
  display:grid; gap:14px; grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  margin:28px 0;
}
.termbox .tb{
  border:1px solid var(--line); border-radius:10px; padding:18px 20px;
  background:var(--card);
}
.termbox .tb b{
  display:block; font-size:16.5px; margin-bottom:8px; color:var(--seal);
  letter-spacing:.08em;
}
.termbox .tb span{ font-size:14.5px; line-height:1.9; color:var(--ink-2); }

/* 名字对照 */
.namecard{
  border:1px solid var(--line); border-radius:12px; background:var(--card);
  padding:26px; margin:24px 0; box-shadow:var(--shadow-s);
}
.namecard .nc-top{
  display:flex; align-items:baseline; gap:16px; flex-wrap:wrap;
  padding-bottom:16px; border-bottom:1px dashed var(--line-2); margin-bottom:16px;
}
.namecard .nc-name{ font-size:27px; letter-spacing:.14em; font-weight:700; }
.namecard .nc-meta{
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.1em; color:var(--ink-3);
}
.namecard dl{ margin:0; display:grid; gap:10px; }
.namecard dt{
  font-family:var(--font-sans); font-size:12px; letter-spacing:.16em;
  color:var(--seal); margin-bottom:2px;
}
.namecard dd{ margin:0; font-size:15.5px; line-height:1.95; color:var(--ink-2); }

/* 表格 */
.tbl-wrap{ margin:28px 0; overflow-x:auto; border:1px solid var(--line); border-radius:10px; }
table{ width:100%; border-collapse:collapse; font-size:15px; min-width:520px; background:var(--card); }
th,td{ padding:13px 18px; text-align:left; border-bottom:1px solid var(--line); }
th{
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.14em;
  color:var(--ink-3); font-weight:600; background:var(--paper-2);
}
tr:last-child td{ border-bottom:none; }
td{ color:var(--ink-2); line-height:1.8; }

/* 目录 */
.toc{ position:sticky; top:92px; font-family:var(--font-sans); }
.toc-t{
  font-size:11.5px; letter-spacing:.24em; color:var(--ink-3);
  padding-bottom:12px; border-bottom:1px solid var(--line); margin-bottom:14px;
}
.toc ol{ list-style:none; margin:0; padding:0; counter-reset:t; }
.toc ol li{ counter-increment:t; margin-bottom:9px; }
.toc a{
  font-size:13px; color:var(--ink-3); line-height:1.7;
  display:block; padding-left:22px; position:relative;
  transition:color .16s;
}
.toc a::before{
  content:counter(t,decimal-leading-zero);
  position:absolute; left:0; top:0; font-size:11px; color:var(--line-2);
}
.toc a:hover{ color:var(--seal); }
.toc a.active{ color:var(--seal); font-weight:600; }
.toc a.active::before{ color:var(--seal); }

/* 页内前后导航 */
.pager{
  display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap;
  margin-top:70px; padding-top:30px; border-top:1px solid var(--line);
}
.pager a{
  flex:1 1 240px; border:1px solid var(--line); border-radius:10px;
  padding:16px 20px; background:var(--card); transition:.2s; box-shadow:var(--shadow-s);
}
.pager a:hover{ border-color:var(--line-2); transform:translateY(-2px); }
.pager .pl{
  font-family:var(--font-sans); font-size:11.5px; letter-spacing:.16em;
  color:var(--ink-3); display:block; margin-bottom:6px;
}
.pager .pn{ font-size:16.5px; letter-spacing:.06em; }
.pager .next{ text-align:right; }

/* ---------- 首页时间轴 / 路线 ---------- */
.route{ counter-reset:r; display:grid; gap:0; }
.route-item{
  display:grid; grid-template-columns:74px minmax(0,1fr); gap:24px;
  padding:26px 0; border-bottom:1px dashed var(--line);
}
.route-item:last-child{ border-bottom:none; }
.route-item .rn{
  font-family:var(--font-serif); font-size:34px; line-height:1;
  color:var(--line-2); letter-spacing:.02em; padding-top:2px;
}
.route-item h4{ margin:0 0 8px; font-size:18px; letter-spacing:.08em; }
.route-item h4 a{ color:inherit; }
.route-item h4 a:hover{ color:var(--seal); }
.route-item p{ margin:0; font-size:15.5px; color:var(--ink-2); line-height:1.95; }

/* ---------- 指标条 ---------- */
.stats{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(170px,1fr));
  gap:1px; background:var(--line); border:1px solid var(--line);
  border-radius:12px; overflow:hidden; box-shadow:var(--shadow-s);
}
.stat{ background:var(--card); padding:26px 22px; text-align:center; }
.stat b{
  display:block; font-size:32px; letter-spacing:.04em; color:var(--seal);
  line-height:1.2; margin-bottom:8px;
}
.stat span{
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.1em;
  color:var(--ink-3); line-height:1.7; display:block;
}

/* ---------- 页脚 ---------- */
.site-foot{
  border-top:1px solid var(--line); background:var(--paper-2);
  padding:54px 0 40px; margin-top:20px;
}
.foot-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:36px; margin-bottom:36px;
}
.site-foot h4{
  font-family:var(--font-sans); font-size:12px; letter-spacing:.2em;
  color:var(--ink-3); margin:0 0 16px; font-weight:600;
}
.site-foot a{ font-size:14.5px; color:var(--ink-2); display:block; margin-bottom:9px; }
.site-foot a:hover{ color:var(--seal); }
.site-foot p{ font-size:14.5px; color:var(--ink-2); line-height:1.95; margin:0; max-width:360px; }
.foot-bottom{
  border-top:1px solid var(--line); padding-top:22px;
  font-family:var(--font-sans); font-size:12.5px; letter-spacing:.08em;
  color:var(--ink-3); display:flex; justify-content:space-between;
  gap:16px; flex-wrap:wrap;
}

/* ---------- 动效 ---------- */
.reveal{ opacity:0; transform:translateY(18px); }
.reveal.in{ opacity:1; transform:none; transition:opacity .7s ease, transform .7s cubic-bezier(.22,.9,.3,1); }

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .layout{ grid-template-columns:minmax(0,1fr); gap:0; }
  .toc{ display:none; }
  .nav a{ padding:8px 9px; font-size:13px; }
}
@media (max-width:900px){
  .nav{
    position:absolute; top:68px; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:10px 18px 18px; display:none;
    box-shadow:0 14px 30px rgba(60,48,30,.09);
  }
  .nav.open{ display:flex; }
  .nav a{ padding:12px 8px; border-bottom:1px solid var(--line); border-radius:0; }
  .nav a.active::after{ display:none; }
  .nav-toggle{ display:block; }
  .foot-grid{ grid-template-columns:1fr 1fr; }
  .hero{ padding:64px 0 54px; }
  .hero::after{ font-size:260px; right:-60px; }
}
@media (max-width:640px){
  body{ font-size:16.5px; }
  .head-inner{ padding:0 18px; height:62px; }
  .nav{ top:62px; }
  .wrap,.wrap-narrow{ padding:0 18px; }
  .section{ padding:54px 0; }
  .hero{ padding:52px 0 44px; }
  .hero::after{ display:none; }
  .foot-grid{ grid-template-columns:1fr; gap:26px; }
  .article h2{ font-size:22px; }
  .route-item{ grid-template-columns:52px minmax(0,1fr); gap:16px; }
  .route-item .rn{ font-size:26px; }
  .stance{ padding:24px 22px; }
  .pager a{ flex:1 1 100%; }
  .pager .next{ text-align:left; }
}

@media print{
  .site-head,.toc,.pager,.progress,.site-foot{ display:none; }
  body{ background:#fff; }
}