/* ==========================================================================
   木铎金声官网 · 杂志化版式（Magazine Edition）
   参考《第一财经》2026 年 10 月刊版面语言：
   「五有」栏目体系 / 刊号条 / 封面故事 / 署名行 / 图注 / 栏目色块 / Infographic
   --------------------------------------------------------------------------
   铁律（沿用第五轮规范，改样式前必读）：
   1) 渐进增强：.reveal 默认可见，JS 挂 .js-motion 后才启用入场动画
   2) 入场用 translate 属性，悬停用 transform，二者独立不可混写
   3) 焦点环双色环，保证任意底色 ≥3:1
   4) 触控目标 ≥44×44px
   ========================================================================== */

:root {
  /* 纸与墨 */
  --paper: #faf8f3;
  --paper-2: #f2eee4;
  --paper-3: #ffffff;
  --ink: #131f36;
  --ink-soft: #1e2e4d;
  --text: #1a1a18;
  --text-2: #5f5d56;
  --text-3: #6b6a65;
  --rule: #ddd7c9;
  --rule-2: #c9c2b0;

  /* 栏目色 —— 模块与按钮的区分依据
     每色三档：tone(大字/色块) / tone-deep(小字, ≥4.5:1) / tone-lite(深色底上的文字, ≥4.5:1) */
  --c-cover: #d93a24;      --c-cover-deep: #b22f1c;   --c-cover-lite: #f2725c;   /* 封面故事 */
  --c-research: #1d5fa8;   --c-research-deep: #16457a; --c-research-lite: #7fb0ea; /* 有研究 */
  --c-attitude: #1b2a4a;   --c-attitude-deep: #131f36; --c-attitude-lite: #a8badb; /* 有态度 */
  --c-taste: #a8791b;      --c-taste-deep: #7e5a11;   --c-taste-lite: #e0b44e;  /* 有腔调 */
  --c-news: #0f7c6e;       --c-news-deep: #0a5a50;    --c-news-lite: #54c4b2;   /* 有意思 */
  --c-contact: #6b4ea8;    --c-contact-deep: #533b85;  --c-contact-lite: #bb9de4; /* 联系 */

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", SimSun, serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --container: 1160px;   /* 方案 C：版心收窄，首屏一屏可容「封面 + 本期目录」 */
  --gutter: 32px;
  --radius: 2px;
}

/* ==========================================================================
   一、基础
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

::selection { background: var(--ink); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--c-cover);
  outline-offset: 2px;
  border-radius: 3px;
  box-shadow: 0 0 0 4px var(--ink);
}
.site-footer :focus-visible,
.on-ink :focus-visible {
  outline-color: #f0c14b;
  box-shadow: 0 0 0 4px #0b1424;
}

.container {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  font-size: 14px;
}
.skip-link:focus { left: 8px; top: 8px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ==========================================================================
   二、刊号条 + 站点头
   ========================================================================== */

.issue-bar {
  background: var(--ink);
  color: rgba(255, 255, 255, .82);
  font-size: 11.5px;
  letter-spacing: .12em;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.issue-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
  padding-block: 6px;
}
.issue-no { font-family: var(--font-mono); color: #f0c14b; }
.issue-tag { color: rgba(255, 255, 255, .55); }
.issue-bar a { color: #f0c14b; }
.issue-bar a:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 243, .94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
@supports not (backdrop-filter: blur(10px)) {
  .site-header { background: var(--paper); }
}
.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
}
.logo-slot {
  width: 132px;
  height: 40px;
  border: 1px dashed var(--rule-2);
  border-radius: 2px;
  flex: none;
  background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(0, 0, 0, .02) 6px, rgba(0, 0, 0, .02) 12px);
}
.brand-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--ink);
  line-height: 1.2;
}
.brand-sub {
  display: block;
  font-size: 9.5px;
  letter-spacing: .26em;
  color: var(--text-3);
  margin-top: 2px;
}

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--text-2);
  transition: color .2s ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 12px;
  height: 2px;
  background: var(--c-cover);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s ease;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a:hover::after,
.site-nav a.active::after { transform: scaleX(1); }
.site-nav a.active { color: var(--ink); font-weight: 500; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--rule-2);
  background: transparent;
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--ink);
}

/* ==========================================================================
   三、按钮 —— 颜色区分
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .08em;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--c-cover); color: #fff; }
.btn-primary:hover { box-shadow: 0 10px 26px rgba(217, 58, 36, .32); }

.btn-research { background: var(--c-research); color: #fff; }
.btn-research:hover { box-shadow: 0 10px 26px rgba(29, 95, 168, .32); }

.btn-attitude { background: var(--c-attitude); color: #fff; }
.btn-attitude:hover { box-shadow: 0 10px 26px rgba(27, 42, 74, .34); }

/* 琥珀 tone (#A8791B) 上压白字仅 3.88:1 < 4.5:1（Lighthouse color-contrast 实测），
   故本变体改用 deep 档底色 (#7E5A11) 升至 6.25:1。其余变体 tone 档均已达标。 */
.btn-taste { background: var(--c-taste-deep); color: #fff; }
.btn-taste:hover { box-shadow: 0 10px 26px rgba(126, 90, 17, .3); }

.btn-news { background: var(--c-news); color: #fff; }
.btn-news:hover { box-shadow: 0 10px 26px rgba(15, 124, 110, .3); }

.btn-contact { background: var(--c-contact); color: #fff; }
.btn-contact:hover { box-shadow: 0 10px 26px rgba(107, 78, 168, .3); }

.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-outline:hover { background: var(--ink); color: var(--paper); }

.btn-ghost {
  background: transparent;
  border-color: var(--rule-2);
  color: var(--text-2);
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

/* 图上按钮（深色底上使用）：底色必须够深，保证白字在图片亮部也达 4.5:1 */
.btn-onimage {
  background: rgba(9, 16, 30, .5);
  border-color: rgba(255, 255, 255, .6);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-onimage:hover { background: #fff; color: var(--ink); border-color: #fff; }

.btn-cover { background: var(--c-cover); color: #fff; }
.btn-cover:hover { background: #b9301d; box-shadow: 0 10px 26px rgba(0, 0, 0, .35); }

/* ==========================================================================
   四、封面区（Cover）
   ========================================================================== */

/* 方案 C：窄幅通栏 —— 画幅取版心宽、固定 452 高居中；
   图片放大取景并向右偏移，只留钟体，溢出部分由 .cover-media 的 overflow:hidden 裁掉 */
.cover {
  position: relative;
  isolation: isolate;
  background: var(--ink);
  overflow: hidden;
  height: 452px;
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.cover-media {
  margin: 0;
  position: relative;
  width: min(var(--container), 100% - var(--gutter) * 2);
  height: 100%;
  overflow: hidden;
}
.cover-media img {
  width: 76%;              /* 缩小取景：整座钟 + 外围木框完整入画（框高 750 源 px × 0.551 = 413 < 452） */
  max-width: none;         /* 必需，否则被全局 img{max-width:100%} 卡回 100% */
  height: 100%;
  object-fit: cover;
  object-position: 0% 58%; /* 0% = 图左缘对齐元素左缘；58% = 木框上下留白均衡（各约 22px） */
  margin-left: 24.5%;      /* 图右贴画幅右缘（并溢出约 6px 消除亚像素缝）；钟体左缘 591，
                              与上一版 592 基本重合 —— 只改尺寸、不改位置 */
  /* 左缘羽化：图宽 882 < 画幅 1160，左侧让出 284px 墨底，硬切会露出天空亮边，
     故用遮罩渐隐融入底色（右缘由画幅 overflow 裁掉，无需处理）。
     羽化带 = 图宽的 10%（≈88px），设计定值，勿按视觉临时改 */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 100%);
}
.cover-media::after {
  content: "";
  position: absolute;
  inset: 0;
  /* 左端 0%～9% 保持全不透明：给「图宽小于画幅」时让出的露底区打底，与 img 的
     mask 羽化叠加，图左缘不会出现竖直硬边；16% 之后回到原方案 C 的 .9 起手 */
  background: linear-gradient(105deg, rgba(9, 16, 30, 1) 0%, rgba(9, 16, 30, 1) 9%, rgba(9, 16, 30, .9) 16%, rgba(9, 16, 30, .62) 46%, rgba(9, 16, 30, .18) 100%);
  z-index: 1;
}
.cover-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 22px;
  padding: clamp(28px, 4.6vh, 56px) max(var(--gutter), calc((100vw - var(--container)) / 2));
  color: #fff;
  pointer-events: none;
}
.cover-overlay > * { pointer-events: auto; }
.cover-overlay .container { width: 100%; }

.cover-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.cover-tag {
  background: var(--c-cover);
  color: #fff;
  font-size: 12.5px;
  letter-spacing: .22em;
  padding: 6px 16px;
  border-radius: 2px;
}
.cover-en {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  color: rgba(255, 255, 255, .72);
}

.cover-title {
  font-size: clamp(40px, 6.4vw, 86px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: #fff;
  max-width: 15ch;
}
.cover-title em {
  font-style: normal;
  color: #f0c14b;
  display: block;
}

/* —— 品牌愿景 · 词体四行（3+3+7 双片，白/金）+ 品牌理念 —— */
.cover-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .32em;
  color: rgba(255, 255, 255, .62);
  margin: 6px 0 0;
}
.cover-label b { color: #f0c14b; font-weight: 400; }
.cover-verse {
  max-width: none;
  font-size: clamp(24px, min(3.6vw, 4.6vh), 56px);
  line-height: 1.18;
  letter-spacing: .02em;
  margin: 6px 0 8px;
}
.cover-verse .vv { display: block; }
.cover-verse .vsp { display: inline-block; width: 1em; }
.cover-verse em { margin-top: .38em; }
.cover-gloss {
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .76);
  margin: 0;
}
.cover-philosophy { margin: 14px 0 0; }
.cover-philosophy .cover-label { margin: 0 0 8px; }
.cover-philosophy .cover-lead { max-width: 48ch; }
.cover-lead strong { color: #fff; font-weight: 600; }

.cover-lead {
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .82);
  margin: 0;
}
.byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(255, 255, 255, .58);
  border-top: 1px solid rgba(255, 255, 255, .22);
  padding-top: 14px;
  max-width: 640px;
}
.byline b { color: rgba(255, 255, 255, .9); font-weight: 500; }
.byline .sep { color: rgba(255, 255, 255, .3); margin: 0 6px; }

.cover-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 6px; }

/* 页码 01：按方案 C 移出画幅右缘，由 .cover 的 overflow:hidden 裁掉，故首屏不可见。
   DOM 保留（未删元素）；若需恢复，把 right 改回 max(var(--gutter), calc((100vw - var(--container)) / 2)) */
.cover-folio {
  position: absolute;
  right: -220px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  text-align: right;
  color: #fff;
  mix-blend-mode: difference;
}
.cover-folio b {
  display: block;
  font-family: var(--font-serif);
  font-size: 76px;
  line-height: .9;
  font-weight: 700;
}
.cover-folio span {
  display: block;
  font-size: 11px;
  letter-spacing: .34em;
  margin-top: 6px;
}

/* ==========================================================================
   五、栏目区块（Feature）
   ========================================================================== */

.section { padding: 84px 0; }
.section.alt { background: var(--paper-2); }
.section.dark { background: var(--ink); color: rgba(255, 255, 255, .84); }
.section.dark h2, .section.dark h3 { color: #fff; }

.section-head { margin-bottom: 44px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .3em;
  color: var(--tone-deep, var(--c-cover-deep));
  margin-bottom: 14px;
}
.kicker::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--tone, var(--c-cover));
}
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); }
.section-head p { margin: 14px 0 0; color: var(--text-2); max-width: 62ch; }

/* 栏目色条区块 */
.feature { padding: 84px 0; }
.feature[data-tone="cover"] { --tone: var(--c-cover); --tone-deep: var(--c-cover-deep); --tone-lite: var(--c-cover-lite); }
.feature[data-tone="research"] { --tone: var(--c-research); --tone-deep: var(--c-research-deep); --tone-lite: var(--c-research-lite); }
.feature[data-tone="attitude"] { --tone: var(--c-attitude); --tone-deep: var(--c-attitude-deep); --tone-lite: var(--c-attitude-lite); }
.feature[data-tone="taste"] { --tone: var(--c-taste); --tone-deep: var(--c-taste-deep); --tone-lite: var(--c-taste-lite); }
.feature[data-tone="news"] { --tone: var(--c-news); --tone-deep: var(--c-news-deep); --tone-lite: var(--c-news-lite); }
.feature[data-tone="contact"] { --tone: var(--c-contact); --tone-deep: var(--c-contact-deep); --tone-lite: var(--c-contact-lite); }
.feature.tinted { background: var(--paper-2); }
.feature.on-ink { background: var(--ink); color: rgba(255, 255, 255, .84); }
.feature.on-ink h2, .feature.on-ink h3 { color: #fff; }
/* 深色底上：栏目文字改用亮色档，小字改用深色档，均 ≥4.5:1 */
.feature.on-ink .feature-cn { color: var(--tone-lite); }
.feature.on-ink .feature-en { color: rgba(255, 255, 255, .62); }
.feature.on-ink .feature-head { border-bottom-color: var(--tone-lite); }
.feature.on-ink .contact-card .v a { color: var(--tone-lite); border-color: var(--tone-lite); }
/* 深底上的次级文字必须换回浅色，否则浅底文字变量在墨蓝底上几乎不可见 */
.feature.on-ink .contact-card .v { color: rgba(255, 255, 255, .74); }
.feature.on-ink .contact-card h3 { color: #fff; }

.feature-head {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0 40px;
  align-items: start;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--tone);
  margin-bottom: 40px;
}
.feature-label { display: flex; flex-direction: column; gap: 6px; }
.feature-cn {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--tone);
  letter-spacing: .04em;
  line-height: 1.2;
}
.feature-en {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .26em;
  color: var(--text-3);
}
.feature-title { font-size: clamp(26px, 3.2vw, 38px); }
.feature-sub { margin: 12px 0 0; color: var(--text-2); max-width: 66ch; }
.feature.on-ink .feature-sub { color: rgba(255, 255, 255, .68); }

/* ==========================================================================
   六、目录（Contents）
   ========================================================================== */

.contents { padding: 42px 0 46px; background: var(--paper-2); border-block: 1px solid var(--rule); }
.contents-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 18px;
}
.contents-head .kicker { margin: 0; }
.contents-head h2 { font-size: 26px; }
.contents-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.toc-item {
  background: var(--paper-3);
  display: flex;
  flex-direction: column;
  min-height: 150px;
  position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}
.toc-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 16px;
  color: inherit;
  text-decoration: none;
}
.toc-item::before {
  content: "";
  position: absolute;
  left: 0; top: 0; right: 0;
  height: 4px;
  background: var(--tone);
}
.toc-item:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(19, 31, 54, .1); z-index: 2; }
.toc-no {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--tone);
  font-weight: 500;
}
.toc-name { font-family: var(--font-serif); font-size: 21px; font-weight: 700; color: var(--ink); }
.toc-en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em; color: var(--text-3); }
.toc-desc { font-size: 12.5px; line-height: 1.7; color: var(--text-2); margin-top: auto; }

/* ==========================================================================
   七、网格（栏间 1px 印刷细线）
   ========================================================================== */

.grid-2, .grid-3, .grid-4 {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 > *, .grid-3 > *, .grid-4 > * { background: var(--paper); }

/* ==========================================================================
   八、卡片
   ========================================================================== */

.card, .service-card, .value-card {
  padding: 30px 26px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover, .service-card:hover, .value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 34px rgba(19, 31, 54, .1);
  position: relative;
  z-index: 2;
}
/* 板块卡是「内容卡」非可点入口（无详情页链接），取消悬停抬升以免误导 */
#tracks .service-card, #tracks .service-card:hover {
  transform: none;
  box-shadow: none;
}
.service-icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: var(--tone, var(--c-research));
  border-radius: 2px;
  flex: none;
}
.service-icon svg { width: 22px; height: 22px; fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card h3, .service-card h3, .value-card h3 { font-size: 19px; line-height: 1.45; }
.card p, .service-card p, .value-card p { font-size: 13.5px; line-height: 1.8; color: var(--text-2); margin: 0; }
.card-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--tone-deep, var(--c-research-deep));
}

/* 作品卡 */
.work-card {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  transition: transform .25s ease, box-shadow .25s ease;
}
.work-card:hover { transform: translateY(-5px); box-shadow: 0 16px 34px rgba(19, 31, 54, .12); position: relative; z-index: 2; }
.work-cover {
  aspect-ratio: 3 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .24em;
  color: rgba(255, 255, 255, .9);
  overflow: hidden;
}
.ph-1 { background: linear-gradient(135deg, #2a4470, #131f36); }
.ph-2 { background: linear-gradient(135deg, #c9a24b, #8a6a1c); }
.ph-3 { background: linear-gradient(135deg, #4a6fa5, #2a4470); }
.ph-4 { background: linear-gradient(135deg, #d93a24, #8f2a1a); }
.work-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.work-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--text-3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
}
.work-meta time, .work-meta .work-meta-note { font-size: 12px; color: var(--text-3); font-family: var(--font-mono); }
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: #fff;
  background: var(--tone-deep, var(--c-taste-deep));
  border-radius: 2px;
}
.work-body h3 { font-size: 18px; }
.work-body p { font-size: 13.5px; color: var(--text-2); margin: 0; }

.works-more { display: flex; justify-content: center; margin-top: 40px; }

/* 新闻列表 */
.news-item {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 26px;
  padding: 26px 4px;
  border-bottom: 1px solid var(--rule);
  align-items: start;
  transition: background-color .2s ease;
}
.news-item:hover { background: rgba(255, 255, 255, .7); }
.news-item time {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--tone-deep, var(--c-news-deep));
  letter-spacing: .06em;
}
.news-item h3 { font-size: 18px; margin-bottom: 6px; }
.news-item p { font-size: 13.5px; color: var(--text-2); margin: 0; }
.news-list { border-top: 1px solid var(--rule); }

/* ==========================================================================
   九、数据条（Infographic）
   ========================================================================== */

.stats-strip { background: var(--ink); color: #fff; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, .14);
}
.stat-item {
  background: var(--ink);
  padding: 38px 28px;
  text-align: left;
}
.stat-item .num {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  color: #f0c14b;
  letter-spacing: -0.01em;
}
.stat-item .label {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .18em;
  color: rgba(255, 255, 255, .58);
}

/* ==========================================================================
   十、图文框架（图注 / 边注）
   ========================================================================== */

.figure { margin: 0; }
.figure-img {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .2em;
  color: rgba(255, 255, 255, .88);
}
.figure-cap {
  margin-top: 10px;
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--text-3);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: baseline;
}
.figure-cap b { color: var(--tone-deep, var(--c-cover-deep)); font-weight: 500; font-family: var(--font-mono); }
/* 摄影署名原用 --rule-2 (#c9c2b0) —— 那是分隔线色，当文字用对纸底仅 1.67:1。
   改用 --text-3 (5.11:1)，层级改由斜体 + 「摄影 /」前缀表达。 */
.figure-cap span { color: var(--text-3); font-style: italic; }

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 24px;
  margin: 40px 0;
}
.gallery .figure-img { aspect-ratio: 4 / 3; }

.prose { max-width: 76ch; }
.prose h2 {
  font-size: 26px;
  margin: 48px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--tone, var(--c-cover));
  line-height: 1.3;
}
.prose h2:first-child { margin-top: 0; }
.prose p { font-size: 15.5px; line-height: 1.95; color: #26251f; }
.prose .lead { font-size: 17px; color: var(--text-2); }

.fill-line {
  display: inline-block;
  width: 54px;
  border-bottom: 2px solid var(--tone, var(--c-cover));
  vertical-align: middle;
  margin: 0 4px;
}

/* 双栏内页：正文 + 边注 */
.feature-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 56px;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: 108px;
  border-top: 3px solid var(--tone, var(--c-cover));
  background: var(--paper-2);
  padding: 24px 24px 28px;
}
.sidebar h2 {
  font-size: 16px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}
.sidebar ol, .sidebar ul { margin: 0; padding: 0 0 0 4px; list-style: none; counter-reset: s; }
.sidebar li {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-2);
  padding: 7px 0;
  border-bottom: 1px dotted var(--rule-2);
}
.sidebar li b { color: var(--ink); font-weight: 500; }
.sidebar .meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  padding: 9px 0;
  border-bottom: 1px dotted var(--rule-2);
}
.sidebar .meta-row span:first-child { color: var(--text-3); }

/* 元信息表 */
.info-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 36px 0 0;
}
.info-row .item { background: var(--paper); padding: 18px 20px; }
.info-row .k {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--text-3);
  margin-bottom: 6px;
}
.info-row .v { font-size: 15px; color: var(--ink); font-weight: 500; }

/* ==========================================================================
   十一、筛选栏 / 空态
   ========================================================================== */

.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filter-btn {
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--rule-2);
  background: transparent;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--text-2);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.empty-state {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-3);
  border: 1px dashed var(--rule-2);
  font-size: 14px;
}

/* ==========================================================================
   十二、面包屑 / 页头 / 翻页 / 错误页
   ========================================================================== */

.page-hero {
  background: var(--ink);
  color: #fff;
  padding: 62px 0 58px;
}
.breadcrumb {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 18px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, .78);
  display: inline-block;
  padding: 4px 0;
}
.breadcrumb a:hover { color: #f0c14b; }
.page-hero h1 { color: #fff; font-size: clamp(30px, 4.2vw, 50px); }
.page-hero .lead { color: rgba(255, 255, 255, .76); max-width: 60ch; margin-top: 16px; font-size: 16px; }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  border-top: 1px solid var(--rule);
  margin-top: 56px;
  padding-top: 22px;
}
.pager a { font-size: 14px; color: var(--text-2); min-height: 44px; display: inline-flex; align-items: center; }
.pager a:hover { color: var(--c-cover); }

.error-page { padding: 100px 0; text-align: center; }
.error-code {
  font-family: var(--font-serif);
  font-size: clamp(72px, 14vw, 150px);
  line-height: 1;
  color: var(--c-cover);
  font-weight: 700;
}

/* ==========================================================================
   十三、联系 / 关于
   ========================================================================== */

.about-band { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about-text h2 { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 18px; }
.about-text p { color: var(--text-2); font-size: 15px; line-height: 1.95; }
.about-visual {
  aspect-ratio: 1 / 1;
  background: var(--paper-2) center/cover no-repeat;
  border: 1px solid var(--rule);
}

.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.contact-card { background: var(--paper); padding: 34px 30px; display: flex; flex-direction: column; gap: 14px; }
.contact-card h3 { font-size: 20px; }
.contact-card .v { font-size: 14px; color: var(--text-2); }
.contact-card .v a { color: var(--c-contact); border-bottom: 1px solid currentColor; padding: 10px 0; display: inline-block; min-height: 44px; }
.qr-img { width: 270px; max-width: 100%; box-sizing: content-box; border: 1px solid var(--rule); padding: 8px; background: #fff; }
.contact-tip { font-size: 12.5px; color: var(--text-3); }

/* —— 联系板块 · 通栏信笺（方案③） ——
   结构：顶部重线 + 眉标行 / 左栏（EMAIL 标签 + 巨字邮箱 + 时间与发送邮件）/ 右栏（竖线分隔 + 二维码 + 图注）
   眉标中文只留「写信给我们」——刊头红签已标 CONTACT，避免同一屏重复节名。 */
.letterhead {
  border-bottom: 1px solid rgba(255, 255, 255, .18);
  padding-bottom: 2px;
}
.lh-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  border-top: 2px solid #fff;
  padding-top: 13px;
}
.lh-k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .55);
}
.lh-k b {
  color: var(--c-taste-lite);
  font-weight: 400;
}
.lh-mid {
  display: grid;
  grid-template-columns: 1fr 336px;
  gap: 64px;
  margin-top: 26px;
}
.lh-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.lh-lbl {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .3em;
  color: rgba(255, 255, 255, .55);
  margin: 0 0 18px;
}
.lh-mail {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .24);
  padding-bottom: 12px;
  display: inline-block;
  align-self: flex-start;
  min-height: 44px;
}
.lh-mail:hover { border-bottom-color: var(--c-contact-lite); }
.lh-sub {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}
.lh-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .55);
}
.lh-lnk {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--c-contact-lite);
  font-size: 13px;
  letter-spacing: .1em;
  text-decoration: none;
}
.lh-lnk:hover { text-decoration: underline; }
.lh-r {
  margin: 0;
  padding-left: 40px;
  border-left: 1px solid rgba(255, 255, 255, .18);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.lh-cap {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: rgba(255, 255, 255, .55);
  margin-top: 12px;
}

.cta-band {
  background: var(--ink);
  color: #fff;
  padding: 62px 0;
  text-align: center;
}
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); }
.cta-band p { color: rgba(255, 255, 255, .72); max-width: 54ch; margin: 14px auto 26px; }

/* ==========================================================================
   十四、页脚
   ========================================================================== */

.site-footer {
  background: #0b1424;
  color: rgba(255, 255, 255, .72);
  padding: 58px 0 26px;
  font-size: 13.5px;
}
.footer-grid {
  display: grid;
  /* 两列：品牌区 + 联系我们。原第三列「快速链接」已于 2026-10-31 整块删除，
     列定义同步从 1.4fr 1fr 1.6fr 收成两列，否则会留出一整列空白。 */
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
/* 页脚品牌区（方案 B · 印鉴式）：2×2 方阵 + 金竖轴 + 竖排释文
   方阵单字 21px/700/字距 0（靠网格对齐，不要字距）；释文 12.5px/字距 .22em，
   两行各自成行、与方阵垂直居中。装饰竖轴 2px 沉金 #c8a15a，不作文字用。
   对比度：#0b1424 上 方阵白字 18.42:1、释文 rgba(255,255,255,.62) 7.53:1，均过 4.5:1。 */
.footer-brand {
  display: flex;
  align-items: stretch;
  gap: 16px;
  /* 自己是 .footer-grid 的格子，默认会被同行的「联系我们」列拉高到 273px，
     方阵就成了一条竖长框。align-self:start 让本块只占内容高度（≈74px），
     内部 stretch 再让竖轴与方阵等高。 */
  align-self: start;
}
.footer-seal {
  display: grid;
  grid-template-columns: auto auto;
  gap: 3px 6px;
  padding: 11px 13px;
  border: 1px solid rgba(200, 161, 90, .55);
  flex: none;
}
.footer-seal i {
  display: block;
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: 700;
  font-size: 21px;
  line-height: 1.14;
  letter-spacing: 0;
  color: #fff;
}
.footer-axis { width: 2px; background: #c8a15a; flex: none; }
.footer-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: .22em;
  color: rgba(255, 255, 255, .62);
}
.footer-intro span { display: block; }
.footer-col h2 {
  color: #fff;
  font-size: 13px;
  letter-spacing: .2em;
  font-family: var(--font-sans);
  font-weight: 500;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 2px; }
.footer-col a {
  display: inline-block;
  /* 横向也补内边距：两字链接（如「首页」）文字宽仅 27px，
     纯纵向 padding 无法满足 44×44 触控目标 */
  padding: 8px 10px;
  min-height: 44px;
  color: rgba(255, 255, 255, .72);
}
.footer-col a:hover { color: #f0c14b; }
.footer-bar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 22px;
  font-size: 12px;
  /* 曾为 .42（压 #0b1424 仅 4.08:1 < 4.5:1，Lighthouse color-contrast 抓出）。
     .55 实测 6.13:1，留足余量，视觉上仍是次要层级。 */
  color: rgba(255, 255, 255, .55);
}

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
  z-index: 90;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--c-cover); transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ==========================================================================
   十五、动效（渐进增强）
   ========================================================================== */

.js-motion .reveal {
  opacity: 0;
  translate: 0 22px;
  transition: opacity .6s ease, translate .6s ease;
}
.js-motion .reveal.visible { opacity: 1; translate: none; }

/* ==========================================================================
   十六、响应式
   ========================================================================== */

/* 短屏（1536×864 / 1440×800 / 1366×768）：画幅与目录同步收高，
   保证电脑端首屏不滚动即可看到「本期目录」的 5 个模块 */
@media (max-height: 891px) and (min-width: 901px) {
  .cover { height: 424px; }
  /* 图宽沿用基础档 76%：框高 413 < 424，钟与框仍完整；只微调纵向取景 */
  .cover-media img { object-position: 0% 58%; }
  .contents { padding: 34px 0 38px; }
  .contents-head { margin-bottom: 14px; }
}

@media (max-height: 800px) and (min-width: 901px) {
  .cover { height: 366px; }
  /* 画幅只有 366 高：按「框高 = 画幅 - 40」反算，76% 会把框切掉 47px，故降到 60% */
  .cover-media img { width: 60%; margin-left: 42%; object-position: 0% 67%; }
  .contents { padding: 26px 0 28px; }
  .contents-head { margin-bottom: 12px; }
  .contents-head h2 { font-size: 24px; }
  .toc-item { min-height: 144px; }
}

@media (max-width: 1080px) {
  .contents-list { grid-template-columns: repeat(3, 1fr); }
  .feature-head { grid-template-columns: 1fr; gap: 12px; }
  .feature-body { grid-template-columns: 1fr; gap: 36px; }
  .sidebar { position: static; }
  .about-band { grid-template-columns: 1fr; gap: 32px; }
  .lh-mid { gap: 44px; }
  .lh-mail { font-size: 30px; }
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .info-row { grid-template-columns: repeat(2, 1fr); }
  /* 基础已是两列，这里只收窄栅距（原先同时声明列宽，三列取消后该声明成为冗余） */
  .footer-grid { gap: 32px; }
  .cover-folio { display: none; }
  /* 封面回到通栏大图：窄画幅与缩小取景仅用于桌面端 */
  .cover { height: auto; display: block; }
  .cover-media { width: auto; height: auto; overflow: visible; }
  .cover-media img { width: 100%; height: clamp(420px, 62vh, 560px); object-position: 50% 55%; margin-left: 0; -webkit-mask-image: none; mask-image: none; }
  .section, .feature { padding: 62px 0; }
  .lh-mid { grid-template-columns: 1fr 320px; gap: 28px; }
  .lh-r { padding-left: 24px; }
  .lh-mail { font-size: 26px; }
  .lh-sub { gap: 18px; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .header-inner { min-height: 64px; }
  .logo-slot { width: 96px; height: 34px; }
  .brand-name { font-size: 18px; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    box-shadow: 0 12px 24px rgba(19, 31, 54, .1);
    padding: 8px 0;
  }
  .site-nav.open { display: flex; }
  .site-nav a { min-height: 48px; padding: 0 22px; }
  .site-nav a::after { left: 22px; right: auto; width: 22px; bottom: 8px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .contents-list { grid-template-columns: 1fr; }
  .toc-item { min-height: 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
  .cover-media img { height: 570px; }
  .cover-overlay { padding: 40px var(--gutter); gap: 16px; }
  .byline { font-size: 11px; }
  .gallery { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .qr-img { width: 225px; }
  .section, .feature { padding: 52px 0; }
  .issue-tag { display: none; }
  .lh-mid { grid-template-columns: 1fr; gap: 32px; }
  .lh-mail { font-size: 24px; }
  .lh-r {
    padding-left: 0;
    padding-top: 28px;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, .18);
    justify-content: flex-start;
  }
  .lh-k { font-size: 9.5px; letter-spacing: .22em; }
}

@media (max-width: 420px) {
  .cover-media img { height: 620px; }
  .cover-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .lh-mail { font-size: 22px; }
}

/* ==========================================================================
   十五、品牌理念组件（关于页使用：正文 + 旁注 / 三动作 / 可核验事实条 / 方法论）
   ========================================================================== */
.fw-main {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  gap: 22px 56px; margin-top: 28px; align-items: start;
}
.fw-lead {
  font-size: 17px; line-height: 1.95; color: var(--text-2);
  max-width: 56ch; margin: 0;
}
.fw-lead strong { color: var(--ink); font-weight: 600; }
.fw-note {
  margin: 0; padding-left: 18px; border-left: 2px solid var(--c-cover);
  font-size: 13.5px; line-height: 1.85; color: var(--text-2);
}
.fw-note b {
  display: block; font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .2em; color: var(--text-3); font-weight: 400; margin-bottom: 6px;
}

/* —— 三动作 —— */
.phil-steps {
  list-style: none; margin: 52px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--rule-2);
  border-block: 1px solid var(--rule-2);
}
.phil-step {
  background: var(--paper); padding: 26px 26px 30px;
  display: flex; flex-direction: column;
}
.ps-top { display: flex; align-items: baseline; gap: 12px; }
.ps-no {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em;
  color: var(--c-cover-deep);
}
.ps-en {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  color: var(--text-3);
}
.ps-verb {
  font-family: var(--font-serif); font-size: 34px; font-weight: 700;
  line-height: 1.2; margin: 14px 0 0; color: var(--ink);
}
.ps-verb--earth { color: #8a6d3b; }
.ps-sub {
  display: block; font-family: var(--font-sans); font-size: 13.5px;
  line-height: 1.5; color: var(--text-2); margin-top: 6px;
  font-weight: 400; letter-spacing: .04em;
}
.ps-text {
  font-size: 14.5px; line-height: 1.9; color: var(--text-2);
  margin: 16px 0 18px;
}
.ps-pledge {
  margin: auto 0 0; padding-top: 14px;
  border-top: 1px dashed var(--rule-2);
  font-size: 12.5px; line-height: 1.7; color: var(--c-cover-deep);
}
.ps-pledge b { font-weight: 600; margin-right: .5em; }

/* —— 可核验事实条 —— */
.proof-strip {
  margin-top: 56px; padding: 32px 0 38px;
  background: var(--paper-2);
  border-top: 1px solid var(--rule-2);
}
.proof-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px 24px; flex-wrap: wrap; margin-bottom: 22px;
}
.proof-k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .28em;
  text-transform: uppercase; color: var(--c-cover-deep);
}
.proof-sub { font-size: 12.5px; line-height: 1.6; color: var(--text-3); margin: 0; }
.proof-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.proof-item { padding: 2px 22px 2px 0; }
.proof-item + .proof-item { border-left: 1px solid var(--rule-2); padding-left: 22px; }
.pf-k {
  display: block; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .18em; color: var(--text-3); margin-bottom: 8px;
}
.pf-v { font-size: 14px; line-height: 1.65; color: var(--ink); margin: 0; font-weight: 500; }
.pf-v small { display: block; font-size: 11.5px; line-height: 1.6; color: var(--text-3); margin-top: 5px; font-weight: 400; }

/* —— 方法论网格（关于页） —— */
.method-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px; background: var(--rule-2);
  border-block: 1px solid var(--rule-2); margin-top: 8px;
}
.method-item { background: var(--paper); padding: 24px 26px 26px; }
.mi-no {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .2em;
  color: var(--tone-deep, var(--c-research-deep));
}
.method-item h3 { font-size: 17px; margin: 10px 0 8px; }
.method-item p { font-size: 14px; line-height: 1.85; color: var(--text-2); margin: 0; }
.method-item p b { color: var(--ink); font-weight: 600; }

@media (max-width: 1080px) {
  .fw-main { grid-template-columns: 1fr; gap: 20px; }
  .fw-note { max-width: 56ch; }
}
@media (max-width: 900px) {
  .phil-steps { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 24px; }
  .proof-item { padding-right: 18px; }
  .proof-item:nth-child(odd) { padding-left: 0; border-left: 0; }
  .proof-item:nth-child(even) { padding-left: 18px; }
  .method-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .fw-lead { font-size: 15.5px; line-height: 1.9; }
  .phil-step { padding: 22px 20px 26px; }
  .ps-verb { font-size: 28px; }
  .proof-strip { margin-top: 40px; padding: 26px 0 30px; }
  .proof-grid { grid-template-columns: 1fr; row-gap: 0; }
  .proof-item, .proof-item + .proof-item {
    padding: 16px 0; border-left: 0;
  }
  .proof-item + .proof-item { border-top: 1px solid var(--rule-2); }
}

/* ==========================================================================
   十七、栏目出口按钮 / 暂无内容时的欢迎占位
   - .mod-more：模块底部「阅读全文 / 进入栏目」的统一按钮行
   - .welcome-state：某栏目暂无真实内容时的占位欢迎界面（不放假卡片）
   ========================================================================== */
.mod-more { display: flex; justify-content: center; margin-top: 40px; }

.welcome-state {
  background: var(--paper-2);
  border: 1px dashed var(--rule-2);
  padding: 62px 32px 56px;
  text-align: center;
}
.ws-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--c-taste-deep);
  margin: 0;
}
.welcome-state h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.8vw, 42px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: .01em;
  color: var(--ink);
  margin: 16px 0 0;
}
.ws-lead {
  max-width: 54ch;
  margin: 18px auto 0;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--text-2);
}
.ws-lead strong { color: var(--ink); font-weight: 600; }
.ws-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}
.ws-meta {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--text-3);
}

@media (max-width: 720px) {
  .welcome-state { padding: 44px 20px 40px; }
  .ws-lead { font-size: 14.5px; line-height: 1.9; }
  .ws-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-motion .reveal { opacity: 1; translate: none; }
  .btn:hover, .card:hover, .service-card:hover, .work-card:hover, .toc-item:hover, .to-top:hover { transform: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media print {
  .site-header, .issue-bar, .to-top, .nav-toggle { display: none !important; }
  body { background: #fff; }
  .cover-media img { height: 340px; }
}

/* ==========================================================================
   十八、研究正文（.prose 扩展）：数据表 / 内嵌图表 / 更正条
   —— 使用页：research/jianghan-2026q3.html
   —— 图表全部为内嵌 SVG，不引入脚本；每条数值直标在图元旁，
      颜色只做分组，不承担信息（灰度打印与色觉障碍下仍可读）
   ========================================================================== */
.prose h3 {
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
  margin: 34px 0 12px;
}
.prose ul,
.prose ol { margin: 0 0 20px; padding-left: 22px; }
.prose li {
  font-size: 15.5px;
  line-height: 1.95;
  color: #26251f;
  margin-bottom: 8px;
}
.prose strong { color: var(--ink); font-weight: 600; }
.prose em { font-style: normal; color: var(--c-research-deep); }

/* 数据表：横线式（印刷体），窄屏在容器内横向滚动，不撑破页面 */
.table-wrap {
  margin: 26px 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.prose table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
}
.prose thead th {
  text-align: left;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper-2);
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule-2);
  padding: 11px 12px;
  white-space: nowrap;
}
.prose tbody td {
  padding: 11px 12px;
  color: #26251f;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.prose tbody tr:last-child td { border-bottom: 2px solid var(--ink); }
.prose tbody th {
  text-align: left;
  font-weight: 500;
  color: var(--ink);
  padding: 11px 12px;
  border-bottom: 1px solid var(--rule);
}
.table-note {
  font-size: 12px;
  line-height: 1.75;
  color: var(--text-3);
  margin: 10px 0 0;
}

/* 内嵌图表 */
.chart { margin: 34px 0 40px; }
.chart svg { display: block; width: 100%; height: auto; }
.chart .figure-cap { margin-top: 12px; }

/* 更正条：M4「更正留痕」的页面化 */
.correction {
  border-left: 4px solid var(--c-research);
  background: var(--paper-2);
  padding: 18px 22px;
  margin: 32px 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-2);
}
.correction b { color: var(--ink); font-weight: 600; }

/* 网格子项必须允许收缩，否则表内 min-width 会把整列撑破（476/375 视口实测溢出 116/217px） */
.feature-body > * { min-width: 0; }

@media (max-width: 720px) {
  .prose table { min-width: 520px; font-size: 12.5px; }
  .prose thead th,
  .prose tbody td,
  .prose tbody th { padding: 9px 10px; }
  .chart { margin: 26px 0 30px; }
}

@media (max-width: 420px) {
  .prose table { min-width: 440px; font-size: 12px; }
  .prose thead th,
  .prose tbody td,
  .prose tbody th { padding: 8px 8px; }
}

/* ==========================================================================
   十九、研究条目（research.html「已发布的研究」列表）
   —— 整条可点，编号 + 标题 + 摘要 + 日期四段式，与作品卡区分
   ========================================================================== */
.study-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: start;
  padding: 28px 0 26px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  color: inherit;
  text-decoration: none;
  transition: background-color .2s ease;
}
.study-item:first-of-type { border-top: 0; padding-top: 20px; }
.study-item:hover { background: var(--paper-2); }
.study-item:focus-visible { outline: 2px solid var(--gold, #c8a15a); outline-offset: 4px; }
.study-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-research-deep);
  padding-top: 5px;
}
.study-kicker {
  display: block;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--text-3);
}
.study-title {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.3vw, 28px);
  font-weight: 700;
  line-height: 1.36;
  color: var(--ink);
  margin: 8px 0 9px;
}
.study-desc {
  display: block;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-2);
  max-width: 62ch;
}
.study-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  padding-top: 5px;
  white-space: nowrap;
}
.study-meta a,
.study-meta span:last-child { color: var(--c-research-deep); }

@media (max-width: 720px) {
  .study-item { grid-template-columns: 1fr; gap: 12px; padding: 24px 0 22px; }
  .study-no { padding-top: 0; }
  .study-meta { flex-direction: row; align-items: center; justify-content: space-between; padding-top: 0; }
}