/* ==========================================================================
   华盾知识产权 · 官网演示样式
   设计语言：远景式编辑排版 + 华盾品牌深红
   ========================================================================== */

:root {
  --red: #A61B29;
  --red-deep: #7C1220;
  --red-soft: rgba(166, 27, 41, 0.08);
  --ink: #14161A;
  --ink-2: #1E2126;
  --paper: #F7F6F3;
  --white: #FFFFFF;
  --gray: #6B6B6B;
  --gray-light: #9A9A98;
  --line: #E4E1DA;
  --gold: #B98A2F;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* 点阵纹理（画册世界地图点阵元素的抽象演绎） */
.dot-grid {
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1.6px);
  background-size: 18px 18px;
}
.dot-grid--dark {
  background-image: radial-gradient(rgba(20, 22, 26, 0.08) 1px, transparent 1.6px);
}

/* ============================ 顶栏 ============================ */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
  background: transparent;
}
.site-header .header-inner {
  max-width: 1320px;
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.site-header.scrolled {
  background: rgba(247, 246, 243, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo-mark { width: 42px; height: 42px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 4px;
  color: #fff;
  transition: color 0.35s;
}
.brand-text em {
  font-style: normal;
  font-size: 10px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.35s;
}
.site-header.scrolled .brand-text strong { color: var(--ink); }
.site-header.scrolled .brand-text em { color: var(--red); }

.main-nav { margin-left: auto; display: flex; gap: 6px; }
.main-nav a {
  position: relative;
  padding: 10px 18px;
  font-size: 15px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.86);
  transition: color 0.3s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 4px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: #fff; font-weight: 600; }
.site-header.scrolled .main-nav a { color: var(--ink); }
.site-header.scrolled .main-nav a.active { color: var(--red); }

.header-cta {
  flex: none;
  padding: 9px 26px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  font-size: 14px;
  letter-spacing: 2px;
  transition: all 0.3s var(--ease);
}
.header-cta:hover { background: var(--red); border-color: var(--red); }
.site-header.scrolled .header-cta {
  border-color: var(--red);
  color: var(--red);
}
.site-header.scrolled .header-cta:hover { background: var(--red); color: #fff; }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  background: none; border: none;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 10px; right: 10px;
  height: 2px;
  background: #fff;
  transition: all 0.3s var(--ease);
}
.site-header.scrolled .nav-toggle span { background: var(--ink); }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-toggle.open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ============================ 首页 Hero ============================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--red-deep) 0%, var(--red) 42%, var(--ink) 100%);
  overflow: hidden;
}
.hero .dot-grid { position: absolute; inset: 0; opacity: 0.5; }
.hero::after {
  content: "";
  position: absolute;
  right: -140px; top: 50%;
  width: 560px; height: 560px;
  transform: translateY(-50%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  pointer-events: none;
}
.hero-logo {
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  width: 320px; height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35), 0 0 0 10px rgba(255, 255, 255, 0.08);
  z-index: 1;
  pointer-events: none;
}
.hero-logo img { width: 72%; height: 72%; object-fit: contain; }
.hero-body { position: relative; z-index: 2; padding: 140px 0 100px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 5px;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 34px;
}
.hero-kicker::before { content: ""; width: 56px; height: 2px; background: rgba(255,255,255,0.6); }
.hero h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.2;
  letter-spacing: 4px;
  margin-bottom: 26px;
}
.hero-en {
  font-size: 13px;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  max-width: 640px;
  margin-bottom: 46px;
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 38px;
  font-size: 15px;
  letter-spacing: 3px;
  border: 1px solid transparent;
  transition: all 0.3s var(--ease);
}
.btn--solid { background: #fff; color: var(--red-deep); font-weight: 600; }
.btn--solid:hover { background: var(--ink); color: #fff; }
.btn--ghost { border-color: rgba(255, 255, 255, 0.6); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.btn--red { background: var(--red); color: #fff; }
.btn--red:hover { background: var(--red-deep); }
.btn--dark-ghost { border-color: rgba(20,22,26,0.35); color: var(--ink); }
.btn--dark-ghost:hover { border-color: var(--red); color: var(--red); }
.btn svg { width: 16px; height: 16px; }
.btn--lg { padding: 19px 56px; font-size: 17px; letter-spacing: 4px; }
.btn--lg svg { width: 18px; height: 18px; }

.scroll-hint {
  position: absolute;
  left: 50%; bottom: 34px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
  letter-spacing: 4px;
  text-align: center;
  z-index: 2;
}
.scroll-hint::after {
  content: "";
  display: block;
  width: 1px; height: 42px;
  margin: 10px auto 0;
  background: linear-gradient(rgba(255,255,255,0.7), transparent);
  animation: hint-drop 2s var(--ease) infinite;
}
@keyframes hint-drop {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================ 内页 Banner ============================ */

.page-banner {
  position: relative;
  padding: calc(var(--header-h) + 92px) 0 96px;
  color: #fff;
  background: linear-gradient(120deg, var(--red-deep) 0%, var(--red) 55%, #4A0D16 100%);
  overflow: hidden;
}
.page-banner .dot-grid { position: absolute; inset: 0; opacity: 0.45; }
.page-banner .container { position: relative; z-index: 2; }
.page-banner .banner-en {
  font-size: 12px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 18px;
}
.page-banner h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900;
  letter-spacing: 8px;
  margin-bottom: 20px;
}
.page-banner h1::after {
  content: "";
  display: block;
  width: 64px; height: 4px;
  background: #fff;
  margin-top: 26px;
}
.page-banner p { max-width: 620px; color: rgba(255, 255, 255, 0.82); letter-spacing: 1px; }

/* ============================ 内页小节锚点导航 ============================ */

.page-anchors {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: rgba(20, 22, 26, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.page-anchors .container {
  display: flex;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-anchors .container::-webkit-scrollbar { display: none; }
.page-anchors a {
  position: relative;
  flex: none;
  padding: 17px 22px;
  font-size: 14.5px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.68);
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.page-anchors a::before {
  content: "";
  position: absolute;
  left: 22px; right: 22px; bottom: 10px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.page-anchors a:hover, .page-anchors a.active { color: #fff; }
.page-anchors a:hover::before, .page-anchors a.active::before { transform: scaleX(1); }
.page-anchors a.active::before { background: #fff; }

/* 锚点跳转时避让固定顶栏 + 小节导航条 */
.section[id] { scroll-margin-top: calc(var(--header-h) + 60px); }

/* ============================ 通用 Section ============================ */

.section { padding: 104px 0; }
.section--white { background: var(--white); }
.section--dark {
  background: var(--ink);
  color: #fff;
}
.section--red {
  background: linear-gradient(135deg, var(--red-deep), var(--red));
  color: #fff;
  position: relative;
  overflow: hidden;
}

.section-head { margin-bottom: 64px; max-width: 760px; }
.section-head .sec-en {
  font-size: 12px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.section--dark .section-head .sec-en,
.section--red .section-head .sec-en { color: rgba(255, 255, 255, 0.55); }
.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 900;
  letter-spacing: 3px;
  line-height: 1.3;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 52px; height: 4px;
  background: var(--red);
  margin-top: 22px;
}
.section--dark .section-head h2::after,
.section--red .section-head h2::after { background: rgba(255, 255, 255, 0.85); }
.section-head .sec-lead { margin-top: 22px; color: var(--gray); font-size: 16px; }
.section--dark .section-head .sec-lead { color: rgba(255, 255, 255, 0.66); }
.section--red .section-head .sec-lead { color: rgba(255, 255, 255, 0.8); }

/* ============================ 数据带 ============================ */

.stats-band { background: var(--ink); color: #fff; }
.stats-band .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 54px 32px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--serif);
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  color: #fff;
}
.stat .num .unit { font-size: 26px; color: var(--red); margin-left: 4px; font-family: var(--sans); font-weight: 700; }
.stat .label { margin-top: 14px; font-size: 14px; letter-spacing: 2px; color: rgba(255, 255, 255, 0.62); }

/* ============================ 业务卡片 ============================ */

.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.biz-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 44px 32px 40px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
  overflow: hidden;
}
.biz-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.biz-card:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(20, 22, 26, 0.1); border-color: transparent; }
.biz-card:hover::before { transform: scaleX(1); }
.biz-card .idx {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 2px;
  color: var(--red);
  margin-bottom: 20px;
}
.biz-card .icon { width: 44px; height: 44px; color: var(--red); margin-bottom: 22px; }
.biz-card h3 { font-size: 21px; letter-spacing: 2px; margin-bottom: 14px; font-weight: 700; }
.biz-card p { font-size: 14px; color: var(--gray); line-height: 1.9; min-height: 106px; }
.biz-card .more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--red);
}
.biz-card .more svg { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.biz-card:hover .more svg { transform: translateX(6px); }

/* ============================ 优势（深色区块） ============================ */

.adv-statement {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 900;
  letter-spacing: 4px;
  line-height: 1.4;
  margin-bottom: 66px;
}
.adv-statement em {
  font-style: normal;
  color: #fff;
  padding: 0 6px;
  background: linear-gradient(transparent 62%, rgba(166, 27, 41, 0.65) 62%);
}
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.12); }
.adv-item { background: var(--ink); padding: 40px 34px; transition: background 0.35s; }
.adv-item:hover { background: var(--ink-2); }
.adv-item .no {
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.14);
  line-height: 1;
  margin-bottom: 18px;
}
.adv-item h4 { font-size: 20px; letter-spacing: 6px; margin-bottom: 12px; }
.adv-item p { font-size: 14px; color: rgba(255, 255, 255, 0.62); line-height: 1.8; }

/* 优势浅色版（关于页） */
.adv-list-light { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-l {
  position: relative;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 38px 32px 44px;
  transition: all 0.35s var(--ease);
}
.adv-l:hover { transform: translateY(-6px); border-color: var(--red); box-shadow: 0 20px 40px rgba(20, 22, 26, 0.08); }
.adv-l .big-no {
  position: absolute;
  right: 16px; bottom: -16px;
  font-family: var(--serif);
  font-size: 96px;
  font-weight: 900;
  line-height: 1;
  color: rgba(166, 27, 41, 0.09);
  pointer-events: none;
}
.adv-l h4 { font-size: 22px; letter-spacing: 6px; margin-bottom: 12px; color: var(--red); font-weight: 900; }
.adv-l p { font-size: 14.5px; color: var(--ink-2); line-height: 1.85; position: relative; }
@media (max-width: 1100px) { .adv-list-light { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .adv-list-light { grid-template-columns: 1fr; } }

/* ============================ 品牌跑马灯 ============================ */

.marquee-wrap { padding: 70px 0; background: var(--white); overflow: hidden; }
.marquee-title { text-align: center; font-size: 13px; letter-spacing: 6px; color: var(--gray); margin-bottom: 40px; }
.marquee { display: flex; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track {
  display: flex;
  gap: 64px;
  padding-right: 64px;
  flex: none;
  animation: marquee 36s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-100%); } }
.marquee-item {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 3px;
  color: rgba(20, 22, 26, 0.55);
  white-space: nowrap;
}
.marquee-item::before { content: ""; width: 7px; height: 7px; background: var(--red); transform: rotate(45deg); flex: none; }

/* ============================ 三栏服务卡（业务服务页） ============================ */

.svc-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.svc-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 0;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.svc-card:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(20, 22, 26, 0.09); }
.svc-card .svc-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 30px 32px;
  background: var(--ink);
  color: #fff;
}
.svc-card .svc-top .icon { width: 34px; height: 34px; color: #fff; flex: none; }
.svc-card .svc-top h3 { font-size: 22px; letter-spacing: 3px; font-weight: 700; }
.svc-card .svc-top small { display: block; font-size: 11px; letter-spacing: 2px; color: rgba(255,255,255,0.55); text-transform: uppercase; margin-top: 4px; }
.svc-card ul { padding: 26px 32px 34px; }
.svc-card li {
  position: relative;
  padding: 13px 0 13px 26px;
  font-size: 14.5px;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line);
  line-height: 1.75;
}
.svc-card li:last-child { border-bottom: none; }
.svc-card li::before {
  content: "";
  position: absolute;
  left: 4px; top: 23px;
  width: 8px; height: 8px;
  border: 2px solid var(--red);
  transform: rotate(45deg);
}

/* ============================ 项目申报五类 ============================ */

.declare-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.declare-card { background: var(--paper); border: 1px solid var(--line); padding: 34px 26px; transition: all 0.35s var(--ease); }
.declare-card:hover { border-color: var(--red); background: var(--white); transform: translateY(-6px); }
.declare-card .tag {
  display: inline-block;
  background: var(--red);
  color: #fff;
  font-size: 13px;
  letter-spacing: 3px;
  padding: 6px 14px;
  margin-bottom: 20px;
}
.declare-card h4 { font-size: 18px; letter-spacing: 1px; margin-bottom: 14px; font-weight: 700; }
.declare-card ul li {
  position: relative;
  font-size: 13.5px;
  color: var(--gray);
  padding: 7px 0 7px 16px;
  line-height: 1.7;
}
.declare-card ul li::before { content: ""; position: absolute; left: 0; top: 16px; width: 6px; height: 1.5px; background: var(--red); }

/* ============================ 流程图 ============================ */

.flow-block { margin-bottom: 70px; }
.flow-block:last-child { margin-bottom: 0; }
.flow-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 30px;
}
.flow-label::before { content: ""; width: 10px; height: 24px; background: var(--red); }
.flow-steps { display: flex; flex-wrap: wrap; align-items: stretch; gap: 0; }
.flow-step {
  flex: 1 1 auto;
  min-width: 128px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  padding: 22px 16px;
  text-align: center;
  position: relative;
}
.flow-step strong { display: block; font-size: 15.5px; letter-spacing: 1px; }
.flow-step small { display: block; margin-top: 8px; font-size: 12px; color: var(--gray); line-height: 1.6; }
.flow-step--end { background: var(--red); border-color: var(--red); }
.flow-step--end strong, .flow-step--end small { color: #fff; }
.flow-arrow {
  flex: none;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--red);
}
.flow-arrow svg { width: 20px; height: 20px; }
.flow-note { margin-top: 22px; padding: 16px 22px; background: var(--red-soft); border-left: 3px solid var(--red); font-size: 13.5px; color: var(--ink-2); line-height: 1.8; }

/* ============================ 服务承诺 ============================ */

.pledge-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.pledge-card {
  display: flex;
  gap: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 38px 36px;
  transition: all 0.35s var(--ease);
}
.pledge-card:hover { border-color: var(--red); transform: translateY(-4px); box-shadow: 0 18px 36px rgba(20,22,26,0.08); }
.pledge-card .no {
  flex: none;
  font-family: var(--serif);
  font-size: 46px;
  font-weight: 900;
  line-height: 1;
  color: var(--red);
  opacity: 0.9;
}
.pledge-card h4 { font-size: 19px; letter-spacing: 1px; margin-bottom: 12px; font-weight: 700; }
.pledge-card p { font-size: 14px; color: var(--gray); line-height: 1.9; }

/* ============================ 关于页：简介 ============================ */

.profile-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 72px; align-items: start; }
.profile-text p { margin-bottom: 20px; color: var(--ink-2); font-size: 15.5px; text-align: justify; }
.profile-quote {
  margin-top: 40px;
  padding: 34px 38px;
  background: var(--red);
  color: #fff;
  position: relative;
}
.profile-quote strong { font-family: var(--serif); font-size: 22px; letter-spacing: 2px; line-height: 1.6; display: block; }
.profile-quote small { display: block; margin-top: 12px; font-size: 11px; letter-spacing: 2px; opacity: 0.75; text-transform: uppercase; }
.profile-side { position: sticky; top: calc(var(--header-h) + 40px); }
.profile-figure {
  background: linear-gradient(150deg, var(--red-deep), var(--ink));
  color: #fff;
  padding: 56px 44px;
  position: relative;
  overflow: hidden;
}
.profile-figure .dot-grid { position: absolute; inset: 0; opacity: 0.4; }
.profile-figure > * { position: relative; }
.profile-figure .big {
  font-family: var(--serif);
  font-size: 88px;
  font-weight: 900;
  line-height: 1;
  opacity: 0.92;
}
.profile-figure .big span { color: rgba(255,255,255,0.45); font-size: 34px; margin-left: 6px; }
.profile-figure p { margin-top: 20px; font-size: 14px; letter-spacing: 2px; color: rgba(255,255,255,0.78); }
.profile-mini { margin-top: 22px; display: grid; gap: 14px; }
.profile-mini li {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 18px 22px;
  font-size: 14px;
  letter-spacing: 1px;
}
.profile-mini li::before { content: ""; width: 8px; height: 8px; background: var(--red); transform: rotate(45deg); flex: none; }

/* ============================ 企业文化五段 ============================ */

.culture-panel {
  background: linear-gradient(135deg, var(--red-deep) 0%, var(--red) 70%, #8E1622 100%);
  color: #fff;
  padding: 76px 64px;
  position: relative;
  overflow: hidden;
}
.culture-panel .dot-grid { position: absolute; inset: 0; opacity: 0.35; }
.culture-list { position: relative; display: grid; gap: 0; }
.culture-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  align-items: baseline;
}
.culture-item:last-child { border-bottom: none; padding-bottom: 0; }
.culture-item:first-child { padding-top: 0; }
.culture-item .key {
  font-size: 15px;
  letter-spacing: 6px;
  padding: 8px 0;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  text-align: center;
  color: #fff;
  white-space: nowrap;
}
.culture-item .val { font-family: var(--serif); font-size: 22px; letter-spacing: 2px; line-height: 1.7; font-weight: 600; }
.culture-item .val small { display: block; font-family: var(--sans); font-size: 13px; color: rgba(255,255,255,0.7); letter-spacing: 1px; margin-top: 6px; font-weight: 400; }

/* ============================ 时间线 ============================ */

.timeline { position: relative; max-width: 900px; margin: 0 auto; padding: 20px 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: var(--line);
  transform: translateX(-50%);
}
.tl-item { position: relative; width: 50%; padding: 0 54px 64px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }
.tl-item::before {
  content: "";
  position: absolute;
  top: 8px;
  width: 14px; height: 14px;
  background: var(--red);
  border: 3px solid var(--paper);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--red);
}
.tl-item:nth-child(odd)::before { right: -8px; }
.tl-item:nth-child(even)::before { left: -8px; }
.tl-year {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
}
.tl-title { font-size: 18px; font-weight: 700; letter-spacing: 2px; margin: 12px 0 10px; }
.tl-text { font-size: 14px; color: var(--gray); line-height: 1.85; }

/* ============================ 资质卡 ============================ */

.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cert-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 34px 28px 30px;
  position: relative;
  transition: all 0.35s var(--ease);
}
.cert-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(20,22,26,0.09); }
.cert-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--red), var(--gold));
}
.cert-card .cert-icon { width: 38px; height: 38px; color: var(--red); margin-bottom: 20px; }
.cert-card h4 { font-size: 17px; letter-spacing: 1px; line-height: 1.55; margin-bottom: 12px; font-weight: 700; min-height: 53px; }
.cert-card p { font-size: 13px; color: var(--gray); line-height: 1.8; }
.cert-card .seal {
  position: absolute;
  right: 18px; bottom: 18px;
  width: 52px; height: 52px;
  border: 2px solid rgba(166, 27, 41, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: rgba(166, 27, 41, 0.7);
  letter-spacing: 1px;
  transform: rotate(-12deg);
}

/* ============================ 案例品牌墙 ============================ */

.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 52px; }
.filter-btn {
  padding: 10px 26px;
  font-size: 14px;
  letter-spacing: 2px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--gray);
  transition: all 0.3s var(--ease);
}
.filter-btn:hover { border-color: var(--red); color: var(--red); }
.filter-btn.active { background: var(--red); border-color: var(--red); color: #fff; }

.brand-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.brand-card {
  background: var(--white);
  border: 1px solid var(--line);
  height: 168px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  text-align: center;
  transition: all 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}
.brand-card:hover { border-color: var(--red); transform: translateY(-5px); box-shadow: 0 18px 36px rgba(20,22,26,0.08); }
.brand-card.hide { display: none; }
.brand-name { line-height: 1.3; letter-spacing: 2px; }
.bn-1 { font-family: var(--serif); font-size: 26px; font-weight: 900; }
.bn-2 { font-size: 22px; font-weight: 800; letter-spacing: 6px; }
.bn-3 { font-family: var(--serif); font-size: 24px; font-weight: 700; border-bottom: 3px solid var(--red); padding-bottom: 4px; }
.bn-4 { font-size: 20px; font-weight: 700; background: var(--ink); color: #fff; padding: 8px 18px; }
.bn-5 { font-family: var(--serif); font-size: 25px; color: var(--red); font-weight: 900; }
.bn-6 { font-size: 21px; font-weight: 600; letter-spacing: 4px; border: 1.5px solid var(--ink); padding: 7px 16px; }
.brand-sub { font-size: 11.5px; color: var(--gray-light); letter-spacing: 2px; }
.brand-tag {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 11px;
  color: var(--red);
  background: var(--red-soft);
  padding: 3px 10px;
  letter-spacing: 1px;
}

.case-highlight { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.15); }
.case-highlight .hl { background: var(--red-deep); padding: 48px 40px; }
.section--red .case-highlight .hl { background: rgba(20, 22, 26, 0.28); }
.case-highlight .hl strong { font-family: var(--serif); font-size: 44px; font-weight: 900; display: block; }
.case-highlight .hl span { display: block; margin-top: 12px; font-size: 14px; letter-spacing: 2px; opacity: 0.85; }

/* ============================ 联系页 ============================ */

.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: start; }
.info-cards { display: grid; gap: 18px; }
.info-card {
  display: flex;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 26px 28px;
  align-items: flex-start;
}
.info-card .icon { width: 30px; height: 30px; color: var(--red); flex: none; margin-top: 4px; }
.info-card h4 { font-size: 13px; letter-spacing: 3px; color: var(--gray); font-weight: 400; margin-bottom: 6px; }
.info-card p { font-size: 16px; letter-spacing: 1px; line-height: 1.7; }
.info-card .demo-note { font-size: 12px; color: var(--gray-light); margin-top: 4px; letter-spacing: 1px; }

.map-block {
  margin-top: 26px;
  background: var(--ink);
  color: #fff;
  padding: 46px 40px;
  position: relative;
  overflow: hidden;
  min-height: 220px;
}
.map-block .dot-grid { position: absolute; inset: 0; opacity: 0.5; }
.map-block > * { position: relative; }
.map-block .pin { width: 34px; height: 34px; color: var(--red); margin-bottom: 18px; }
.map-block h4 { font-size: 18px; letter-spacing: 2px; margin-bottom: 10px; }
.map-block p { font-size: 14px; color: rgba(255,255,255,0.72); letter-spacing: 1px; }
.map-block .demo-flag { position: absolute; right: 20px; top: 18px; font-size: 11px; letter-spacing: 2px; color: rgba(255,255,255,0.4); border: 1px solid rgba(255,255,255,0.25); padding: 3px 10px; }

.form-panel { background: var(--white); border: 1px solid var(--line); padding: 48px 46px; }
.form-panel h3 { font-family: var(--serif); font-size: 26px; letter-spacing: 2px; margin-bottom: 8px; font-weight: 900; }
.form-panel .form-sub { font-size: 13.5px; color: var(--gray); margin-bottom: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; letter-spacing: 2px; color: var(--ink-2); }
.form-field label .req { color: var(--red); margin-left: 4px; }
.form-field input, .form-field select, .form-field textarea {
  font-family: inherit;
  font-size: 15px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  outline: none;
  transition: border-color 0.3s, background 0.3s;
  border-radius: 0;
  appearance: none;
}
.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B6B6B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--red); background: #fff; }
.form-field.error input, .form-field.error select { border-color: var(--red); background: rgba(166,27,41,0.05); }
.field-msg { font-size: 12px; color: var(--red); display: none; letter-spacing: 1px; }
.form-field.error .field-msg { display: block; }
.form-success {
  display: none;
  margin-top: 22px;
  padding: 16px 20px;
  background: rgba(28, 110, 55, 0.09);
  border-left: 3px solid #1C6E37;
  color: #1C6E37;
  font-size: 14px;
  letter-spacing: 1px;
}
.form-success.show { display: block; }

/* ============================ CTA 带 ============================ */

.cta-band { padding: 92px 0; text-align: center; position: relative; overflow: hidden; }
.cta-band h2 { font-family: var(--serif); font-size: clamp(28px, 3.6vw, 46px); font-weight: 900; letter-spacing: 4px; margin-bottom: 18px; }
.cta-band p { font-size: 15px; letter-spacing: 2px; opacity: 0.8; margin-bottom: 40px; }

/* ============================ 页脚 ============================ */

.site-footer { background: var(--ink); color: rgba(255, 255, 255, 0.72); }
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 0.9fr 1fr;
  gap: 48px;
  padding: 76px 0 60px;
}
.footer-brand .brand-text strong { color: #fff; }
.footer-brand .brand-text em { color: rgba(255,255,255,0.5); }
.footer-brand .slogan { margin-top: 24px; font-size: 14px; letter-spacing: 3px; color: rgba(255,255,255,0.55); }
.footer-brand .slogan b { color: var(--red); padding: 0 4px; font-weight: 400; }
.footer-col h5 { font-size: 14px; letter-spacing: 4px; color: #fff; margin-bottom: 24px; font-weight: 600; }
.footer-col ul li { margin-bottom: 13px; }
.footer-col a { font-size: 14px; color: rgba(255, 255, 255, 0.62); transition: color 0.3s; letter-spacing: 1px; }
.footer-col a:hover { color: #fff; }
.footer-col .f-contact li { display: flex; gap: 12px; font-size: 14px; line-height: 1.8; align-items: flex-start; }
.footer-col .f-contact svg { width: 17px; height: 17px; color: var(--red); flex: none; margin-top: 5px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 1px;
}

/* ============================ 滚动渐入 ============================ */

/* 渐进增强：仅在 JS 标记 reveal-ready 后才启用隐藏式渐入，保证无 JS / 打印 / 截图场景内容可见 */
html.reveal-ready .reveal:not(.in) {
  opacity: 0;
  transform: translateY(34px);
}
.reveal { transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.reveal-ready .reveal:not(.in) { opacity: 1; transform: none; }
  .reveal { transition: none; }
  .marquee-track { animation: none; }
  .scroll-hint::after { animation: none; }
}

/* ============================ 响应式 ============================ */

@media (max-width: 1100px) {
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .declare-grid { grid-template-columns: repeat(2, 1fr); }
  .declare-grid .declare-card:last-child { grid-column: 1 / -1; }
  .brand-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .profile-layout { grid-template-columns: 1fr; }
  .profile-side { position: static; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .hero-logo { display: none; }
}

@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
  .stats-band .container { grid-template-columns: repeat(2, 1fr); }
  .stat { border-left: none; border-top: 1px solid rgba(255,255,255,0.1); }
  .stat:nth-child(-n+2) { border-top: none; }
  .svc-grid-3 { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .case-highlight { grid-template-columns: 1fr; }
  .pledge-grid { grid-template-columns: 1fr; }
  .culture-panel { padding: 52px 32px; }
  .culture-item { grid-template-columns: 1fr; gap: 14px; }
  .culture-item .key { justify-self: start; padding: 6px 22px; }

  .main-nav, .header-cta { display: none; }
  .nav-toggle { display: block; }
  .main-nav.open {
    display: flex;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--ink);
    padding: 18px 0 30px;
    gap: 0;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
  }
  .main-nav.open a {
    color: rgba(255, 255, 255, 0.85);
    padding: 15px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .main-nav.open a.active { color: #fff; }
  .main-nav.open a::after { display: none; }
}

@media (max-width: 640px) {
  .container { padding: 0 22px; }
  .section { padding: 72px 0; }
  .biz-grid, .declare-grid, .brand-grid, .cert-grid { grid-template-columns: 1fr; }
  .declare-grid .declare-card:last-child { grid-column: auto; }
  .stats-band .container { grid-template-columns: 1fr; }
  .stat { border-top: 1px solid rgba(255,255,255,0.1); }
  .stat:first-child { border-top: none; }
  .form-row { grid-template-columns: 1fr; }
  .form-panel { padding: 36px 26px; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; padding: 56px 0 44px; }
  .hero-body { padding: 130px 0 110px; }
  .flow-arrow { width: 100%; height: 30px; transform: rotate(90deg); }
  .flow-steps { flex-direction: column; }
  .tl-item, .tl-item:nth-child(even) { width: 100%; left: 0; text-align: left; padding: 0 0 48px 44px; }
  .timeline::before { left: 8px; transform: none; }
  .tl-item:nth-child(odd)::before, .tl-item:nth-child(even)::before { left: 1px; right: auto; }
  .page-banner { padding: calc(var(--header-h) + 56px) 0 64px; }
  .footer-bottom { flex-direction: column; }
}

/* ============================ 后台上传 Logo ============================ */

.logo-image { border-radius: 50%; object-fit: cover; }

/* ============================ Hero 背景图模式 ============================ */

.hero--image {
  background: linear-gradient(135deg, rgba(124, 18, 32, 0.78) 0%, rgba(166, 27, 41, 0.55) 45%, rgba(20, 22, 26, 0.72) 100%), var(--red-deep);
  background-size: cover;
  background-position: center;
}

/* ============================ 板块头行内布局 ============================ */

.section-head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; max-width: none; }
.section-head--row .section-head-more { flex: none; margin-bottom: 6px; }

/* ============================ 新闻卡片 ============================ */

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.news-card:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(20, 22, 26, 0.1); border-color: transparent; }
.news-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--ink); }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.news-card:hover .news-cover img { transform: scale(1.05); }
.news-cover--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, var(--red-deep) 0%, var(--red) 55%, #4A0D16 100%);
}
.news-cover--placeholder svg { width: 56px; height: 56px; color: rgba(255, 255, 255, 0.35); }
.news-body { display: flex; flex-direction: column; flex: 1; padding: 26px 26px 28px; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.news-date { font-size: 12px; letter-spacing: 2px; color: var(--gray-light); }
.news-cat {
  font-size: 11.5px;
  letter-spacing: 2px;
  color: var(--red);
  background: var(--red-soft);
  padding: 4px 12px;
}
.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.55;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover .news-body h3 { color: var(--red); }
.news-body p {
  font-size: 13.5px;
  color: var(--gray);
  line-height: 1.85;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
}
.news-body .more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--red);
}
.news-body .more svg { width: 14px; height: 14px; transition: transform 0.3s var(--ease); }
.news-card:hover .more svg { transform: translateX(6px); }

/* ============================ 前台分页 ============================ */

.pager { display: flex; gap: 10px; justify-content: center; margin-top: 56px; flex-wrap: wrap; }
.pager-btn {
  min-width: 42px; height: 42px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--ink);
  transition: all 0.28s var(--ease);
}
.pager-btn:hover { border-color: var(--red); color: var(--red); }
.pager-btn.active { background: var(--red); border-color: var(--red); color: #fff; }

/* ============================ 空状态 ============================ */

.empty-state { text-align: center; padding: 80px 0 60px; }
.empty-state svg { width: 52px; height: 52px; color: var(--gray-light); margin: 0 auto 18px; }
.empty-state p { color: var(--gray); letter-spacing: 2px; margin-bottom: 28px; }

/* ============================ 文章详情页 ============================ */

.article-hero {
  position: relative;
  padding: calc(var(--header-h) + 76px) 0 70px;
  color: #fff;
  background: linear-gradient(120deg, var(--red-deep) 0%, var(--red) 55%, #4A0D16 100%);
  overflow: hidden;
}
.article-hero .dot-grid { position: absolute; inset: 0; opacity: 0.45; }
.article-hero .container { position: relative; z-index: 2; max-width: 980px; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 12.5px; letter-spacing: 2px; color: rgba(255, 255, 255, 0.6); margin-bottom: 26px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.75); transition: color 0.25s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .current { color: rgba(255, 255, 255, 0.9); }
.article-hero h1 {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  letter-spacing: 3px;
  line-height: 1.4;
  margin-bottom: 24px;
}
.article-meta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 13px; letter-spacing: 1px; color: rgba(255, 255, 255, 0.72); }
.article-meta .news-cat { background: rgba(255, 255, 255, 0.16); color: #fff; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  align-items: start;
}
.article-main { min-width: 0; }
.article-cover { margin-bottom: 36px; border: 1px solid var(--line); }
.article-cover img { width: 100%; height: auto; display: block; }

/* 正文编辑排版：衬线标题 + 760px 阅读宽度 + 印刷风细节 */
.article-content { max-width: 760px; font-size: 16px; line-height: 2.05; color: var(--ink-2); }
.article-content p { margin-bottom: 22px; text-align: justify; }
.article-content h2 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 2px;
  margin: 44px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--red);
  line-height: 1.45;
}
.article-content h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1px;
  margin: 34px 0 14px;
  line-height: 1.5;
}
.article-content ul, .article-content ol { margin: 0 0 22px 26px; }
.article-content li { margin-bottom: 10px; }
.article-content li::marker { color: var(--red); }
.article-content img { max-width: 100%; height: auto; margin: 30px auto; display: block; }
.article-content blockquote {
  margin: 32px 0;
  padding: 20px 26px;
  border-left: 4px solid var(--red);
  background: var(--red-soft);
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 1px;
  color: var(--ink);
  line-height: 1.9;
}
.article-content strong { font-weight: 700; }

.article-foot {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 52px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}
.article-foot .btn svg { width: 16px; height: 16px; }

.article-side { position: sticky; top: calc(var(--header-h) + 40px); display: grid; gap: 22px; }
.side-block { background: var(--white); border: 1px solid var(--line); padding: 26px 26px 30px; }
.side-block h4 {
  font-size: 15px;
  letter-spacing: 3px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--red);
  display: inline-block;
}
.side-list { list-style: none; }
.side-list li { padding: 12px 0; border-bottom: 1px dashed var(--line); }
.side-list li:last-child { border-bottom: none; }
.side-list a { display: flex; flex-direction: column; gap: 5px; }
.side-date { font-size: 11.5px; color: var(--gray-light); letter-spacing: 2px; }
.side-title { font-size: 14px; letter-spacing: 1px; line-height: 1.6; color: var(--ink-2); transition: color 0.25s; }
.side-list a:hover .side-title { color: var(--red); }
.side-block--red {
  background: linear-gradient(135deg, var(--red-deep), var(--red));
  color: #fff;
  border-color: transparent;
}
.side-block--red h4 { border-bottom-color: rgba(255, 255, 255, 0.85); }
.side-block--red p { font-size: 13.5px; color: rgba(255, 255, 255, 0.82); line-height: 1.85; margin-bottom: 20px; }

/* ============================ 新组件响应式 ============================ */

@media (max-width: 1100px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; gap: 40px; }
  .article-side { position: static; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .news-grid { grid-template-columns: 1fr; }
  .section-head--row { flex-direction: column; align-items: flex-start; }
  .article-side { grid-template-columns: 1fr; }
  .article-hero { padding: calc(var(--header-h) + 52px) 0 52px; }
  .article-content { font-size: 15px; line-height: 1.95; }
  .article-content h2 { font-size: 21px; }
}

/* ============================ 键盘可达性 ============================ */

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}
.hero :focus-visible,
.page-banner :focus-visible,
.article-hero :focus-visible,
.section--dark :focus-visible,
.section--red :focus-visible {
  outline-color: #fff;
}