/* 柠檬GEO全量主权战略 - 主站样式 */
:root {
  --navy: #001f3f;
  --navy-dark: #0a1628;
  --charcoal: #1a1a1a;
  --gray-bg: #f5f5f5;
  --white: #ffffff;
  --text: #333333;
  --text-light: #666666;
  --border: #dddddd;
  /* 设计稿 3130px 宽时内容区 1751px → 占比 1751/3130（首页与子页统一） */
  --design-width: 3130;
  --content-width: 1751;
  --max-w: 100%;
  --gutter: 40px;
  --content-inset: 56px;
  --header-h: 52px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.85; }

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

.container,
.hero-slide-wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  /* padding-right: var(--gutter); */
  box-sizing: border-box;
}

/* Top bar — 效果图：白底 + 右侧工具链接 */
.top-bar {
  background: var(--navy);
  color: var(--white);
  padding: 10px 0;
  font-size: 0.9rem;
  border-bottom: none;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-bar-extra {
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.85);
  flex-shrink: 0;
}

.top-bar-extra a:hover { color: var(--white); opacity: 1; }

.top-bar-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  cursor: pointer;
  background: transparent;
}

.brand-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--white);
}

.brand-mini-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

/* Page banner */
.page-banner {
  background: var(--navy);
  color: var(--white);
  padding: 48px 0;
}

.page-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.page-banner .banner-visual { flex-shrink: 0; width: 180px; }
.page-banner .banner-visual img { width: 100%; }

.page-banner .banner-copy {
  flex: 1 1 0;
  min-width: 0;
  max-width: none;
}

.page-banner h1 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.page-banner .subtitle { font-size: 1rem; opacity: 0.9; line-height: 1.6; max-width: none; }
.page-banner .banner-note {
  margin-top: 12px;
  font-size: 0.85rem;
  line-height: 1.65;
  opacity: 0.88;
  max-width: none;
}

.page-banner.centered { text-align: center; }
.page-banner.centered .container { flex-direction: column; }
.page-banner.centered h1 { font-size: 2.2rem; }

/* 子页面：无顶栏，导航在 banner 下方（见效果图 2全量主权战略） */
.page-sub .page-banner {
  padding: 48px 0;
}

.page-sub .page-banner .container {
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}

.page-sub .page-banner .banner-visual {
  width: 200px;
  flex-shrink: 0;
}

.page-sub .page-banner h1 {
  font-size: 2.5rem;
  line-height: 1.35;
  margin-bottom: 14px;
}

.page-sub .page-banner .subtitle {
  font-size: 0.95rem;
  line-height: 1.85;
  opacity: 0.92;
}

.page-sub .page-banner.centered .container {
  justify-content: center;
  text-align: center;
}

.page-sub .main-nav .container {
  padding-top: 0;
  padding-bottom: 0;
}

/* Navigation */
.main-nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  padding: 12px 0;
  gap: 0;
}

.main-nav a {
  padding: 4px 6px;
  font-size: 1rem;
  color: var(--text);
  border-right: 1px solid #ccc;
  white-space: nowrap;
  flex: 1 1 auto;
  text-align: center;
  line-height: 1.3;
}

.main-nav a:last-child { border-right: none; }
.main-nav a.active { font-weight: 700; color: var(--navy); }
.main-nav a:hover { color: var(--navy); }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 4px;
  color: var(--white);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle-nav {
  color: var(--navy);
  border-color: var(--navy);
  background: var(--white);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  opacity: 1;
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}

.nav-toggle-nav:hover,
.nav-toggle-nav:focus-visible {
  border-color: var(--navy);
  background: var(--gray-bg);
}

/* Hero banner — 全宽背景图 + 居中文字 */
.hero-banner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 2149 / 728;
  background-image: url("/assets/images/sy-banner.png");
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-banner-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 48px var(--gutter) 64px;
}

.hero-banner .hero-slides {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-banner .hero-slide {
  width: 100%;
}

.hero-banner .hero-slide.active {
  animation: heroFadeIn 0.55s ease;
}

.hero-banner-text {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  color: var(--white);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-banner-text h1 {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.26;
  margin-bottom: 0;
  letter-spacing: 0.02em;
}

.hero-banner-text .hero-sub {
  font-size: 1.55rem;
  font-weight: 400;
  margin-top: 28px;
  margin-bottom: 0;
  opacity: 0.92;
  line-height: 1.6;
}

.hero-banner-text .hero-btns {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 44px;
}

.hero-banner-text .hero-btns a {
  color: var(--white);
  font-size: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  padding-bottom: 4px;
  opacity: 1;
  transition: border-color 0.2s;
}

.hero-banner-text .hero-btns a:hover {
  border-color: var(--white);
}

@media (min-width: 901px) and (max-width: 1580px) {
  .hero-banner-inner {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero-banner-text h1 {
    font-size: 2.85rem;
  }

  .hero-banner-text .hero-sub {
    font-size: 1.35rem;
  }

  .hero-banner-text .hero-btns a {
    font-size: 1.15rem;
  }

  .hero-banner-text .hero-btns {
    gap: 22px;
    margin-top: 28px;
  }
}

/* Hero carousel — 灰色背景条 + 左图右文（效果图样式） */
.hero-carousel {
  position: relative;
  background: #333333;
  overflow: hidden;
}

.hero-slides {
  position: relative;
  width: 100%;
}

.hero-slide {
  display: none;
  width: 100%;
}

.hero-slide.active {
  display: block;
  animation: heroFadeIn 0.55s ease;
}

@keyframes heroFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.hero-slide-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  padding-top: 44px;
  padding-bottom: 56px;
  min-height: 340px;
}

.hero-slide-media {
  flex: 0 0 46%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.hero-slide-media img {
  max-width: 100%;
  max-height: 290px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.hero-slide-media--dark {
  background: #2a2a2a;
  padding: 8px;
}

.hero-slide-text {
  flex: 1;
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 260px;
}

.hero-slide-text h1 {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.28;
  margin-bottom: 0;
  letter-spacing: 0.02em;
}

.hero-slide-text .hero-lead {
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.5;
  margin-top: 20px;
  margin-bottom: 8px;
}

.hero-slide-text .hero-sub {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 0;
  opacity: 0.9;
}

.hero-slide-text .hero-btns {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 48px;
}

.hero-slide-text .hero-btns a {
  color: var(--white);
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  padding-bottom: 4px;
  opacity: 1;
  transition: border-color 0.2s;
}

.hero-slide-text .hero-btns a:hover {
  border-color: var(--white);
}

@media (min-width: 901px) and (max-width: 1580px) {
  .hero-slide-wrap {
    align-items: stretch;
    gap: 32px;
    min-height: auto;
  }

  .hero-slide-media {
    flex: 0 0 42%;
    align-self: stretch;
    align-items: stretch;
    min-height: 0;
  }

  .hero-slide-media img {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
    object-position: left center;
  }

  .hero-slide-text {
    min-height: auto;
    justify-content: flex-start;
  }

  .hero-slide-text h1 {
    font-size: 1.5rem;
  }

  .hero-slide-text .hero-lead {
    margin-top: 14px;
  }

  .hero-slide-text .hero-btns {
    gap: 22px;
    margin-top: 0;
    padding-top: 20px;
  }
}

.hero-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 10;
}

.hero-dots {
  display: flex;
  gap: 8px;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}

.hero-dot.active {
  background: var(--white);
  transform: scale(1.15);
}

/* Legacy hero (unused) */
.hero-home {
  background: #2a2a2a;
  color: var(--white);
  padding: 60px 0;
}

.hero-home .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-home h1 { font-size: 2.4rem; line-height: 1.3; margin-bottom: 24px; }
.hero-home .hero-btns { display: flex; gap: 24px; flex-wrap: wrap; }
.hero-home .hero-btns a {
  color: var(--white);
  border-bottom: 1px solid var(--white);
  padding-bottom: 2px;
  font-size: 0.95rem;
}

.hero-visual img { max-width: 320px; margin: 0 auto; }

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  padding: 56px 0;
  text-align: center;
  background: var(--white);
  width: 100%;
  /* padding-left:revert-rule; */
}

/* 3 项数据条：与导航左对齐，三列均分容器宽度 */
.stats-row.stats-row-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-row.stats-row-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.stat-item .num { font-size: 2.2rem; font-weight: 700; color: #444; }
.stat-item .label { font-size: 0.95rem; color: var(--text-light); margin-top: 8px; line-height: 1.5; }

/* Professor block — 效果图 2×2 网格 */
.professor-section {
  padding-top: 40px;
  padding-bottom: 40px;
}

.professor-grid {
  display: grid;
  grid-template-columns: max-content 200px;
  grid-template-rows: auto auto;
  column-gap: 140px;
  row-gap: 12px;
  align-items: start;
  width: fit-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

/* 首页凯闻教授 — 2×2 效果图布局 */
.professor-section-home {
  padding-top: 32px;
  padding-bottom: 36px;
}

.professor-section-home > .professor-home-grid {
  display: grid;
  width: 100%;
  margin: 0;
  column-gap: 28px;
  row-gap: 30px;
  grid-template-columns: minmax(0, 1.18fr) minmax(260px, 0.82fr);
  grid-template-rows: minmax(0, 1fr) auto;
  grid-template-areas:
    "creds cert"
    "portrait right";
  align-items: stretch;
}

.professor-section-home .professor-cell-creds {
  grid-area: creds;
  padding-left: var(--content-inset);
  padding-right: 8px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 0;
  height: 100%;
}

.professor-section-home .professor-cell-cert {
  grid-area: cert;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  justify-content: flex-start;
  min-height: 0;
  height: 100%;
}

.professor-section-home .professor-verify-cert {
  width: 200px;
  height: auto;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

.professor-cert-qr {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  object-fit: contain;
}

.professor-section-home .professor-cell-portrait {
  grid-area: portrait;
  padding-left: var(--content-inset);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  min-height: 0;
}

.professor-section-home .professor-cell-right {
  grid-area: right;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  min-height: 0;
  height: 100%;
}

.professor-section-home .professor-grid h2 {
  font-size: 1.42rem;
  margin-bottom: 12px;
  line-height: 1.3;
}

.professor-section-home .professor-bio p {
  font-size: 0.8rem;
  line-height: 1.75;
  margin-bottom: 2px;
}

.professor-section-home .professor-bio p:last-child {
  margin-bottom: 0;
}

.professor-section-home .professor-verify-text {
  font-size: 0.86rem;
  line-height: 1.5;
  flex-shrink: 0;
}

.professor-section-home .professor-verify-text .verify-title {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--text);
}

.professor-section-home .professor-verify-text p {
  margin-bottom: 0;
}

.professor-section-home .professor-photo-main {
  width: auto;
  max-width: min(100%, 248px);
  max-height: 330px;
  height: auto;
  object-fit: contain;
  object-position: left top;
  display: block;
}

.professor-section-home .professor-photo-sub {
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  display: block;
  object-fit: cover;
  object-position: center;
}

/* 首页：左列随内容宽度，右列较宽，图文更紧凑 */
.professor-section.container:not(.professor-section-home) > .professor-grid {
  width: 100%;
  margin: 0;
  row-gap: 20px;
  column-gap: 28px;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 38%);
  justify-content: start;
}

.professor-section.container:not(.professor-section-home):not(.about-founder-section) > .professor-grid .professor-cell-creds,
.professor-section.container:not(.professor-section-home):not(.about-founder-section) > .professor-grid .professor-cell-verify {
  justify-self: stretch;
  align-self: start;
  padding-left: var(--content-inset);
  box-sizing: border-box;
}

.professor-section.container.about-founder-section > .professor-grid .professor-cell-creds,
.professor-section.container.about-founder-section > .professor-grid .professor-cell-verify {
  justify-self: stretch;
  align-self: start;
  margin-left: 0;
}

.professor-section.container:not(.professor-section-home) > .professor-grid .professor-cell-portrait,
.professor-section.container:not(.professor-section-home) > .professor-grid .professor-cell-speech {
  justify-self: stretch;
  align-self: start;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.professor-section.container .professor-grid h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.professor-section.container .professor-creds li {
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 4px;
}

.professor-bio p {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 8px;
  color: var(--text);
}

.professor-bio p:last-child {
  margin-bottom: 0;
}

.professor-cell-speech {
  position: relative;
}

.professor-speech-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  color: var(--white);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

.professor-section.container .professor-verify-text {
  font-size: 0.9rem;
  line-height: 1.5;
}

.professor-section.container .professor-verify-text .verify-title {
  font-size: 1rem;
  margin-bottom: 2px;
}

.professor-section.container .professor-photo-main {
  width: auto;
  max-width: 220px;
  max-height: 320px;
  object-fit: contain;
  object-position: left top;
}

.professor-section.container .professor-photo-sub {
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 160px;
  object-fit: cover;
  object-position: center;
}

.professor-section.container .professor-more {
  margin-top: 20px;
}

.professor-cell-creds {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  justify-self: start;
  align-self: start;
}

.professor-cell-verify {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-self: start;
}

.professor-grid h2 {
  font-size: 1.22rem;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 700;
}

.professor-grid h2::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  border-left: 3px solid var(--text);
  border-top: 3px solid var(--text);
  margin-bottom: 8px;
}

.professor-creds {
  list-style: none;
}

.professor-creds li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.65;
}

.professor-creds li:last-child { margin-bottom: 0; }

.professor-creds li::before {
  content: "·";
  position: absolute;
  left: 0;
  font-weight: 700;
}

.professor-cell-portrait {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  justify-self: start;
  width: 200px;
}

.professor-photo-main {
  width: auto;
  max-width: 200px;
  height: auto;
  max-height: 260px;
  object-fit: contain;
  display: block;
}

.professor-verify-cert {
  width: 150px;
  flex-shrink: 0;
}

.professor-verify-text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.45;
}

.professor-verify-text .verify-title {
  font-size: 1rem;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 4px;
}

.professor-verify-text p { margin-bottom: 1px; }

.professor-cell-speech {
  display: flex;
  justify-self: start;
  width: 350px;
  /* min-height: 120px;
  max-height: 160px; */
  overflow: hidden;
}

.professor-photo-sub {
     /* width: 100%; */
     height: 100%;
     /* min-height: 120px; */
     /* max-height: 160px; */
     object-fit: cover;
     object-position: center;
     display: block;
}

.professor-more {
  text-align: center;
  margin-top: 20px;
}

.professor-more .btn {
  min-width: 132px;
  padding: 9px 32px;
  font-size: 0.88rem;
}

/* 信任状区块 */
.trust-section {
  background: var(--gray-bg);
  padding: 32px 0 28px;
  text-align: center;
}

.trust-section h2 {
  text-align: center;
  margin-bottom: 8px;
}

.trust-section .section-desc {
  text-align: center;
  margin-bottom: 16px;
}

.trust-list {
  list-style: none;
  max-width: 100%;
  margin: 0 auto 18px;
  text-align: left;
}

.trust-list li {
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  line-height: 1.55;
}

.trust-list li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.trust-list strong {
  display: inline;
  font-size: 1rem;
  color: var(--text);
  font-weight: 700;
}

.trust-list strong::after {
  content: "：";
}

.trust-list p {
  display: inline;
  font-size: 1rem;
  color: var(--text-light);
  line-height: inherit;
  margin: 0;
}

.trust-certs-row {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 20px;
  max-width: 100%;
  margin: 0 auto;
}

.trust-certs-imgs {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.trust-certs-imgs img {
  width: 120px;
  height: auto;
  border: 1px solid var(--border);
  object-fit: contain;
  background: var(--white);
}

.trust-verify-text {
  flex: 1;
  min-width: 0;
  text-align: left;
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.45;
}

.trust-verify-text .verify-title {
  font-size: 1rem;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 4px;
}

.trust-verify-text p {
  margin-bottom: 1px;
}

.trust-more {
  margin-top: 18px;
}

/* 首页 — 我们的优势 */
.advantages-section {
  background: var(--gray-bg);
  padding: 36px 0 32px;
}

.advantages-section h2,
.geo-diff-section h2 {
  font-size: 1.35rem;
  margin-bottom: 18px;
  color: var(--text);
  font-weight: 700;
}

.advantages-list,
.geo-diff-list {
  list-style: none;
  max-width: 100%;
  margin: 0;
}

.advantages-list li,
.geo-diff-list li {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-light);
}

.advantages-list li:last-child,
.geo-diff-list li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.advantages-list strong,
.geo-diff-list strong {
  color: var(--text);
  font-weight: 700;
}

.geo-diff-section {
  background: var(--white);
  padding: 36px 0 32px;
}

.geo-diff-list {
  counter-reset: geo-diff;
}

.geo-diff-section .btn-center {
  margin-top: 24px;
}

.strategy-trademark {
  margin: 14px auto 0;
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* 战略三角图 */
.section.strategy-diagram-section {
  text-align: center;
  background: var(--gray-bg);
  padding: 32px 0 36px;
}

.strategy-diagram-panel {
  max-width: 100%;
  margin: 0 auto;
  padding: 24px 28px 20px;
  background: transparent;
  text-align: center;
}

.strategy-diagram-panel h2 {
  font-size: 1.6rem;
  margin-bottom: 10px;
  color: var(--navy);
}

.strategy-notice-bar {
  display: inline-block;
  background: #1a1a1a;
  color: var(--white);
  font-size: 0.8rem;
  padding: 6px 18px;
  margin: 0 auto 8px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.strategy-tagline {
  font-size: 0.92rem;
  color: var(--text);
  margin: 0 auto 14px;
  line-height: 1.5;
}

.strategy-diagram-box {
  margin: 0 auto;
  padding: 8px 0 0;
  background: transparent;
}

.strategy-diagram-section .btn-center {
  margin-top: 20px;
}

.strategy-diagram-img {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}

/* Strategy page */
.strategy-intro { padding: 40px 0 32px; }
.strategy-intro h2 { font-size: 1.6rem; color: var(--navy); margin-bottom: 16px; text-align: left; }
.strategy-intro .lead { margin-bottom: 14px; line-height: 1.8; color: var(--text); }
.strategy-intro .dim-line { margin-bottom: 8px; line-height: 1.75; font-size: 0.95rem; }
.strategy-intro .oneline-label { font-weight: 700; margin: 20px 0 8px; color: var(--text); }
.strategy-intro .oneline-text { line-height: 1.75; color: var(--text-light); }
.strategy-intro .tags-label { font-size: 0.88rem; font-weight: 600; margin: 20px 0 10px; color: var(--text); }
.strategy-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.strategy-tags span {
  padding: 5px 12px;
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-light);
  background: var(--white);
}

/* ADI 三论思想层 */
.strategy-adi-section {
  padding: 40px 0;
  background: var(--gray-bg);
}

.strategy-adi-panel {
  padding: 0;
  background: transparent;
}

.strategy-adi-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  text-align: left;
  margin-bottom: 10px;
  line-height: 1.4;
}

.strategy-adi-meta {
  text-align: left;
  font-size: 0.92rem;
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.strategy-adi-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 0.92rem;
  line-height: 1.7;
}

.strategy-adi-table th,
.strategy-adi-table td {
  border: 1px solid var(--border);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.strategy-adi-table th {
  font-weight: 700;
  color: var(--text);
  background: var(--white);
}

.strategy-adi-table .strategy-adi-questions td {
  font-weight: 400;
  color: var(--text);
  background: #fafafa;
}

.strategy-adi-table .strategy-adi-desc td {
  color: var(--text-light);
}

.strategy-adi-chain {
  margin-top: 18px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text);
  text-align: left;
}

.strategy-adi-chain strong {
  font-weight: 700;
  color: var(--text);
}

.strategy-concepts { padding: 40px 0; background: var(--white); }

.strategy-concepts-head {
  margin-bottom: 28px;
  text-align: left;
}

.strategy-concepts-head h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.4;
}

.strategy-concepts-head .strategy-oneline-label {
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
  font-size: 0.95rem;
}

.strategy-concepts-head .strategy-oneline-text {
  margin: 0;
  line-height: 1.75;
  color: var(--text-light);
  font-size: 0.95rem;
}

.strategy-concept-block + .strategy-concept-block { margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--border); }
.strategy-concept-block h3 { font-size: 1.2rem; color: var(--navy); margin-bottom: 14px; }
.strategy-concept-block dl {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  row-gap: 10px;
  align-items: baseline;
  font-size: 0.9rem;
  line-height: 1.7;
}
.strategy-concept-block dt { font-weight: 700; color: var(--text); margin: 0; white-space: nowrap; }
.strategy-concept-block dd { color: var(--text-light); margin: 0; }

.strategy-table-section { padding: 40px 0; background: var(--white); }
.strategy-table-section.gray { background: var(--gray-bg); }
.strategy-table-section h2 { font-size: 1.4rem; color: var(--navy); margin-bottom: 8px; text-align: center; }
.strategy-table-section .section-desc { text-align: center; margin-bottom: 24px; }
.strategy-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  background: var(--white);
}
.strategy-table th,
.strategy-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.strategy-table th { background: var(--gray-bg); font-weight: 600; color: var(--text); }
.strategy-table-section.gray .strategy-table th { background: #ebebeb; }

.strategy-modes-section { padding: 40px 0; text-align: center; background: var(--white); }
.strategy-modes-section.gray { background: var(--gray-bg); }
.strategy-modes-section h2 { font-size: 1.4rem; color: var(--navy); margin-bottom: 24px; }
.strategy-mode-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 100%;
  margin: 0 auto;
}
.strategy-mode-card {
  background: #2a2a2a;
  color: var(--white);
  padding: 24px;
  text-align: left;
  border-radius: 4px;
}
.strategy-mode-card h3 { font-size: 1.05rem; margin-bottom: 12px; }
.strategy-mode-card p { font-size: 0.88rem; opacity: 0.9; line-height: 1.65; margin: 0; }

.strategy-modes-note {
  margin: 20px auto 0;
  max-width: 720px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-light);
  text-align: center;
}

/* Products page */
.products-intro-section { padding: 40px 0 32px; }
.products-intro-section h2,
.products-catalog-section h2,
.products-guide-section h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 24px;
  text-align: center;
}
.products-pyramid-img-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.products-pyramid-img {
  width: 70%;
  height: auto;
}
.products-pyramid-desc { text-align: center; line-height: 1.85; color: var(--text-light); font-size: 0.92rem; max-width: 100%; margin: 0 auto; }
.products-pyramid-table { margin-top: 28px; }
.products-catalog-section { padding: 40px 0; background: var(--gray-bg); }
.products-catalog { display: flex; flex-direction: column; gap: 20px; }
.product-detail-card {
  background: var(--white);
  padding: 24px;
  border: 1px solid var(--border);
}
.product-detail-card h3 { font-size: 1.05rem; color: var(--navy); margin-bottom: 12px; }
.product-detail-card h4 { font-size: 0.95rem; color: var(--text); margin-bottom: 12px; font-weight: 600; }
.products-spec-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.products-spec-table th,
.products-spec-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.products-spec-table th { width: 120px; background: var(--gray-bg); font-weight: 600; color: var(--text); white-space: nowrap; }
.products-spec-table td { color: var(--text-light); }
.products-guide-section { padding: 40px 0; }
.products-guide-section .section-desc { text-align: center; margin: -12px 0 24px; }
.products-guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  background: var(--white);
  margin-bottom: 24px;
}
.products-guide-table th,
.products-guide-table td {
  border: 1px solid var(--border);
  padding: 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.products-guide-table th { background: var(--gray-bg); font-weight: 600; }

/* Methodology page */
.methodology-stats-section { padding: 32px 0; background: var(--white); }
.methodology-stats-section .stats-row { padding: 24px 0; }

.methodology-adi-section {
  padding: 40px 0;
  background: var(--gray-bg);
}

.methodology-adi-head {
  margin-bottom: 28px;
  text-align: left;
}

.methodology-adi-head h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.4;
}

.methodology-adi-lead {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-light);
}

.methodology-adi-block + .methodology-adi-block {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.methodology-adi-block h3 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.45;
}

.methodology-adi-block p {
  margin: 0 0 10px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text);
}

.methodology-adi-block p:last-child {
  margin-bottom: 0;
}

.methodology-adi-rule {
  font-weight: 700;
  color: var(--text);
}

.methodology-intro-section { padding: 40px 0 32px; background: var(--white); }
.methodology-intro-section h2,
.methodology-block-full h2,
.methodology-block-path h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 24px;
  text-align: center;
}
.methodology-pyramid-wrap { display: flex; justify-content: center; margin-bottom: 20px; }
.methodology-pyramid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
  max-width: 420px;
}
.methodology-pyramid-layer {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 2px solid var(--navy);
  color: var(--navy);
  font-weight: 700;
  padding: 14px 16px;
  font-size: 0.95rem;
}
.methodology-pyramid .layer-strategy { width: 38%; }
.methodology-pyramid .layer-execution { width: 58%; }
.methodology-pyramid .layer-foundation { width: 78%; }
.methodology-intro-desc {
  text-align: center;
  line-height: 1.85;
  color: var(--navy);
  font-size: 0.92rem;
  max-width: 100%;
  margin: 0 auto;
}
.methodology-block { padding: 40px 0; background: var(--white); }
.methodology-block.gray { background: var(--gray-bg); }
.methodology-block h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 16px;
  text-align: center;
}
.methodology-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  background: var(--white);
}
.methodology-table th,
.methodology-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.methodology-table th { background: var(--gray-bg); font-weight: 600; white-space: nowrap; }
.methodology-block.gray .methodology-table th { background: #ebebeb; }

.methodology-spotlight-section h2 {
  font-size: 1.35rem;
  color: var(--navy);
  margin-bottom: 20px;
  text-align: left;
  line-height: 1.4;
}

.methodology-spotlight-table {
  max-width: 100%;
  background: var(--white);
}

.methodology-spotlight-table th {
  background: var(--gray-bg);
}

.methodology-block-full .section-desc { text-align: center; margin: -12px 0 24px; }
.methodology-block-path { padding: 40px 0; }
.methodology-path-sub {
  font-size: 1rem;
  color: var(--text);
  text-align: center;
  margin: -12px 0 24px;
  font-weight: 600;
}
.methodology-path-summary {
  text-align: center;
  line-height: 1.85;
  color: var(--text-light);
  font-size: 0.92rem;
  max-width: 100%;
  margin: 24px auto 0;
}

.methodology-path-summary + .methodology-path-summary {
  margin-top: 12px;
}

/* 产品卡片 — 效果图字段 */
.product-card .product-meta {
  font-size: 0.78rem;
  opacity: 0.85;
  margin-top: 8px;
  line-height: 1.5;
}

.product-card .product-meta span {
  display: block;
  margin-bottom: 4px;
}

/* 案例卡片 — 效果图字段 */
.case-meta {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.65;
}

.case-meta dt {
  font-weight: 600;
  color: var(--text);
  display: inline;
}

.case-meta dd {
  display: inline;
  margin: 0 0 8px;
}

.case-meta div { margin-bottom: 6px; }

/* FAQ */
.faq-section {
  background: var(--white);
}

.faq-section h2 {
  text-align: center;
}

.faq-list-home {
  list-style: none;
}

.faq-list-home li {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.faq-list-home li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.faq-list-home .faq-q {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 8px;
  color: var(--text);
}

.faq-list-home .faq-a {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* CTA — 效果图深灰底 */
.cta-band {
  background: #333333;
  color: var(--white);
  padding: 52px 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.45;
}

.cta-band .cta-sub {
  font-size: 0.92rem;
  opacity: 0.85;
  margin-bottom: 28px;
}

.cta-band .cta-btns { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }

/* Footer — 效果图四栏 + 二维码 */
.site-footer {
  background: #1a1a1a;
  color: rgba(255,255,255,0.85);
  padding: 48px 0 24px;
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 100px;
  gap: 20px;
  margin-bottom: 32px;
  align-items: start;
}

.footer-brand img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-bottom: 12px;
  object-fit: cover;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 10px;
}

.footer-grid h3 { color: var(--white); font-size: 0.95rem; margin-bottom: 14px; }
.footer-nav-cols {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.footer-nav-cols ul {
  list-style: none;
  flex: 0 0 auto;
  padding: 0;
}
.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-grid ul li { margin-bottom: 8px; }
.footer-grid a { color: rgba(255,255,255,0.75); }
.footer-grid a:hover { color: var(--white); opacity: 1; }

.footer-qr img {
  width: 88px;
  height: 88px;
  border: 2px solid rgba(255,255,255,0.2);
  object-fit: cover;
  object-position: 70% 45%;
}

.footer-qr p {
  font-size: 0.75rem;
  margin-top: 6px;
  text-align: center;
  opacity: 0.7;
}

.footer-contact { margin-top: 16px; }
.footer-contact li { font-size: 0.82rem; opacity: 0.75; }

.footer-slogan { font-size: 0.82rem; opacity: 0.65; margin-top: 6px; line-height: 1.6; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  text-align: center;
  font-size: 0.78rem;
  opacity: 0.55;
}

/* Professor block — 内页通用 */
.professor-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.professor-block img { border-radius: 4px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
.professor-block h2 { margin-bottom: 16px; }

/* Sections */
.section { padding: 56px 0; }
.section.gray { background: var(--gray-bg); }
.section h2 { font-size: 2.6rem; margin-bottom: 12px; color: var(--navy); }
.section .section-desc { color: var(--text-light); margin-bottom: 32px; }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.certs-grid img { border: 1px solid var(--border); border-radius: 4px; }

/* Triangle diagram */
.triangle-section { text-align: center; }
.triangle-diagram {
  max-width: 100%;
  margin: 32px auto;
  padding: 40px;
  background: var(--gray-bg);
  border-radius: 8px;
}

.triangle-diagram .tri-title { font-size: 1.4rem; font-weight: 700; color: var(--navy); margin-bottom: 24px; }
.triangle-points { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; text-align: center; }
.triangle-points .point { padding: 16px; }
.triangle-points .point strong { display: block; font-size: 1.1rem; color: var(--navy); margin-bottom: 8px; }

/* Product cards */
.products-section {
  background: var(--white);
}

.products-section h2,
.products-section .section-desc {
  text-align: center;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 100%;
  margin: 0 auto;
}

.product-card {
  background: #2a2a2a;
  color: var(--white);
  padding: 20px 22px;
  border-radius: 4px;
}

.product-card h3 { font-size: 1rem; margin-bottom: 10px; }
.product-card p { font-size: 0.9rem; opacity: 0.9; line-height: 1.6; }

/* Case cards */
.cases-section {
  background: var(--white);
}

.cases-section h2,
.cases-section .section-desc {
  text-align: center;
}

.case-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
}

.case-card img { width: 100%; height: 160px; object-fit: cover; }
.case-card .case-body { padding: 16px; }
.case-card h3 { font-size: 1rem; margin-bottom: 8px; }
.case-card p { font-size: 0.85rem; color: var(--text-light); }

/* FAQ preview */
.faq-preview { background: var(--gray-bg); padding: 32px; border-radius: 4px; }
.faq-preview .faq-item { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.faq-preview .faq-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.faq-preview strong { display: block; margin-bottom: 8px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 2px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.btn-dark { background: #2a2a2a; color: var(--white); }
.btn-dark:hover { background: var(--navy); opacity: 1; }
.btn-outline { border-color: var(--white); color: #000000; background: #ffffff; }
.btn-outline:hover { background: rgba(255,255,255,0.1); opacity: 1; }
.btn-center { text-align: center; margin-top: 32px; }

/* FAQ tabs */
.faq-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 0 16px;
}

.faq-tab {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--white);
}

.faq-tab.active, .faq-tab:hover {
  background: var(--charcoal);
  color: var(--white);
  border-color: var(--charcoal);
  opacity: 1;
}

/* 标签居中，正文左缘与首个标签对齐 */
.content-page:has(.faq-tabs) {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  row-gap: 16px;
}

.content-page:has(.faq-tabs) .faq-tabs {
  grid-column: 2;
  margin: 0;
  justify-content: flex-start;
  max-width: 100%;
}

.content-page:has(.faq-tabs) .faq-list {
  grid-column: 2 / -1;
  margin: 0;
  padding: 0;
  text-align: left;
  min-width: 0;
}

.faq-list .faq-q { font-weight: 700; margin: 28px 0 12px; font-size: 1rem; }
.faq-list .faq-q:first-child { margin-top: 0; }
.faq-list .faq-a { color: var(--text); margin-bottom: 8px; line-height: 1.7; }
.faq-list ul { margin: 8px 0 12px 24px; line-height: 1.65; }
.faq-list table,
.faq-list .faq-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 0.9rem; }
.faq-list th, .faq-list td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; vertical-align: top; }
.faq-list th { background: var(--gray-bg); font-weight: 600; }

/* Content page — 与首页 .container 同宽（1751/3130），不再内层收窄 */
.content-page { padding: 48px 0; width: 100%; text-align: left;   padding-left: 30px;}
.content-page:has(.faq-tabs) { padding-top: 24px; }
.content-page h2 { font-size: 1.4rem; color: var(--navy); margin: 32px 0 16px; }
.content-page h2:first-child { margin-top: 0; }
.content-page p { margin-bottom: 16px; }
.content-page ul { margin: 0 0 16px 24px; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.process-step { text-align: center; padding: 20px; }
.process-step .step-num { font-size: 2rem; font-weight: 700; color: var(--navy); }
.process-step h3 { margin: 12px 0 8px; font-size: 1rem; }

.contact-info { text-align: center; padding: 48px 0; }
.contact-info p { font-size: 1.1rem; margin-bottom: 12px; }
.contact-info .qr-row { display: flex; gap: 40px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.contact-info .qr-item { text-align: center; }
.contact-info .qr-item img { width: 120px; height: 120px; margin: 0 auto 8px; border: 1px solid var(--border); }

/* Institute page */
.institute-stats-section { padding: 32px 0; background: var(--white); text-align: center; }
.institute-stats-section .stats-row { margin-bottom: 8px; }
.institute-stats-cta { margin-top: 24px; }
.institute-section { padding: 40px 0; background: var(--white); }
.institute-section.gray { background: var(--gray-bg); }
.institute-section h2,
.institute-summary-section h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 8px;
  text-align: center;
}
.institute-section .section-desc {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 24px;
  font-size: 0.95rem;
}
.institute-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  background: var(--white);
}
.institute-table th,
.institute-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.institute-table-kv th { background: var(--gray-bg); font-weight: 600; white-space: nowrap; width: 100px; }
.institute-table-list th { background: var(--gray-bg); font-weight: 600; }
.institute-table-title-bold tbody td:first-child { font-weight: 700; color: var(--text); }
.institute-section.gray .institute-table th { background: #ebebeb; }
.institute-more-note {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-light);
  margin: 20px 0 0;
}
.institute-more-note a { color: var(--navy); text-decoration: underline; }
.institute-section .btn-center { margin-top: 24px; }
.institute-summary-section {
  padding: 40px 0;
  background: var(--white);
  text-align: center;
}
.institute-summary-section p {
  color: var(--text-light);
  max-width: 100%;
  margin: 0 auto 24px;
  line-height: 1.7;
  font-size: 0.95rem;
}

/* Cases page */
.cases-stats-section { padding: 32px 0; background: var(--white); }
.cases-stats-section .stats-row { padding: 24px 0; }
.cases-stats-note {
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--navy);
  font-weight: 600;
  text-align: center;
}
.cases-section { padding: 40px 0; background: var(--white); }
.cases-section.gray { background: var(--gray-bg); }
.cases-section h2,
.cases-rules-section h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 24px;
  text-align: center;
}
.cases-section .section-desc { text-align: center; color: var(--text-light); margin: -12px 0 24px; font-size: 0.95rem; }
.cases-tag-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 32px;
  max-width: 100%;
  margin: 0 auto;
  padding: 24px;
  background: var(--gray-bg);
  border: 1px solid var(--border);
}
.cases-tag-col { list-style: none; }
.cases-tag-col li {
  padding: 8px 12px;
  margin-bottom: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  text-align: center;
}
.cases-metrics-table,
.cases-index-table,
.cases-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  background: var(--white);
}
.cases-metrics-table th,
.cases-metrics-table td,
.cases-index-table th,
.cases-index-table td,
.cases-detail-table th,
.cases-detail-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
}
.cases-metrics-table th,
.cases-index-table th { background: var(--gray-bg); font-weight: 600; }
.cases-section.gray .cases-index-table th { background: #ebebeb; }
.cases-detail-table th { background: var(--gray-bg); font-weight: 600; white-space: nowrap; width: 100px; }
.cases-case-block { padding: 32px 0; background: var(--white); }
.cases-case-block.gray { background: var(--gray-bg); }
.cases-case-block.gray .cases-detail-table th { background: #ebebeb; }
.cases-case-title {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.5;
}
.cases-adi-note {
  margin-top: 12px;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-light);
}
.cases-typical-label { padding: 24px 0 8px; }
.cases-label-heading {
  font-size: 1.2rem;
  color: var(--navy);
  text-align: left;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cases-label-bar { color: var(--text-light); font-weight: 400; }
.cases-rules-section { padding: 40px 0; background: var(--gray-bg); }
.cases-rules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cases-rule-card h3 {
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 10px;
}
.cases-rule-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.65;
}
.cases-rule-card strong { color: var(--text); }

/* About page — 创始人区块复用首页 professor-section 布局 */
.about-founder-section {
  background: var(--white);
  padding: 40px 0;
}

.about-founder-heading {
  font-size: 1.8rem;
  color: var(--navy);
  margin-bottom: 8px;
  margin-left: 0;
  text-align: left;
  font-weight: 700;
}

.about-founder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  grid-template-rows: auto auto;
  grid-template-areas:
    "copy portrait"
    "verify speech";
  align-items: stretch;
  width: 100%;
  max-width: none;
  margin: 0;
  row-gap: 20px;
  column-gap: 28px;
}

.about-founder-section > .container > .about-founder-grid {
  width: 100%;
  margin: 0;
}

.about-founder-copy {
  grid-area: copy;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  max-width: 100%;
}

.about-founder-portrait {
  grid-area: portrait;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  align-self: stretch;
  min-height: 0;
  width: 100%;
}

.about-founder-speech {
  grid-area: speech;
  display: flex;
  align-items: stretch;
  align-self: stretch;
  min-height: 0;
  width: 100%;
  overflow: hidden;
}

.about-founder-section .about-founder-portrait .professor-photo-main {
  width: auto;
  max-width: 250px;
  height: 100%;
  max-height: none;
  object-fit: contain;
  object-position: right top;
}

.about-founder-section .about-founder-speech .professor-photo-sub {
  width: 100%;
  max-width: none;
  height: 260px;
  min-height: 120px;
  object-fit: cover;
  object-position: center;
}

.about-founder-copy p {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.75;
}

.about-founder-copy p:last-child { margin-bottom: 0; }

.about-founder-verify {
  grid-area: verify;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  align-self: stretch;
  justify-content: flex-start;
  gap: 10px;
  min-height: 0;
}

.about-founder-verify .about-verify-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  width: 100%;
  flex: 1;
}

.about-founder-verify .professor-verify-cert {
  width: 188px;
  flex-shrink: 0;
}
.about-verify-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
  width: 100%;
  text-align: left;
}
.about-verify-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.about-founder-verify .about-verify-qr {
  display: block;
  margin: 6px 0 8px;
}
.about-section { padding: 40px 0; background: var(--white); }
.about-section.gray { background: var(--gray-bg); }
.about-section h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 24px;
  /* text-align: center; */
}
.about-trust-item {
  font-size: 1rem;
  color: var(--navy);
  margin: 24px 0 16px;
  /* text-align: center; */
  font-weight: 600;
}
.about-history-section {
  padding: 44px 0 52px;
}

.about-history-section h2 {
  text-align: left;
  color: var(--charcoal);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.about-history-table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: transparent;
  table-layout: fixed;
}

.about-history-table th,
.about-history-table td {
  border: none;
  padding: 8px 0;
  text-align: left;
  vertical-align: top;
  line-height: 1.8;
  background: transparent;
}

.about-history-table thead th {
  font-weight: 700;
  color: var(--charcoal);
  padding-bottom: 12px;
  white-space: nowrap;
}

.about-history-table thead th:first-child,
.about-history-table tbody th {
  width: 148px;
  padding-right: 56px;
  font-weight: 700;
  color: var(--charcoal);
  white-space: nowrap;
}

.about-history-table tbody td {
  font-weight: 400;
  color: var(--text);
}
.about-advantage-list {
  list-style: none;
  max-width: 100%;
  margin: 0 auto;
}
.about-advantage-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.65;
  font-size: 0.92rem;
}
.about-advantage-list li:last-child { border-bottom: none; }
.about-advantage-list strong { color: var(--navy); }
.about-trust-section {
  padding: 44px 0 52px;
}

.about-trust-section h2 {
  /* text-align: center; */
  color: var(--charcoal);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.about-trust-section .about-trust-item {
  /* text-align: center; */
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal);
  margin: 0 0 28px;
}

.about-trust-section .about-trust-certs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: 100%;
  margin: 0 0 28px;
}

.about-trust-section .about-trust-certs img {
  width: 100%;
  height: auto;
  border: 3px solid #2a2a2a;
  object-fit: contain;
  background: var(--white);
  display: block;
}

.about-trust-section .about-trust-verify {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  /* max-width: 480px; */
}

.about-trust-section .about-trust-qr {
  width: 88px;
  height: 88px;
  flex-shrink: 0;
  margin: 0;
  object-fit: contain;
}

.about-trust-section .trust-verify-text {
  flex: 1;
  min-width: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text);
  text-align: left;
}

.about-trust-section .trust-verify-text .verify-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 6px;
}

.about-trust-section .trust-verify-text p {
  margin-bottom: 2px;
}

.about-trademark-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin: 8px 0 24px;
}

.about-trademark-item {
  text-align: center;
}

.about-trademark {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
  letter-spacing: 0.04em;
  border: 2px solid #000;
  padding: 12px 16px;
  text-align: center;
  line-height: 1.35;
}

.about-trademark-reg {
  margin: 8px 0 0;
  font-size: 0.88rem;
  color: var(--text);
  text-align: left;
}
.about-ip-list {
  list-style: none;
  max-width: 100%;
  margin: 0 auto 24px;
  font-size: 0.9rem;
  line-height: 1.7;
}
.about-ip-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.about-ip-list li:last-child { border-bottom: none; }
.about-media-note {
  text-align: center;
  color: var(--text-light);
  font-size: 0.9rem;
  padding: 24px 0 8px;
}
.about-trust-qr {
  display: block;
  margin-bottom: 12px;
}
.about-ip-section .about-trust-item { text-align: left; }
.about-sop-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 40px;
  margin-bottom: 24px;
}

.about-sop-list { list-style: disc; padding-left: 1.4em; margin: 0; }
.about-sop-list li { list-style: disc; border-bottom: none; padding: 4px 0; }
.about-news-placeholder {
  text-align: center;
  color: #cc0000;
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 8px 0 16px;
}

/* Institute link banner (legacy) */
.institute-banner {
  background: var(--gray-bg);
  padding: 32px;
  border-radius: 4px;
  text-align: center;
  margin: 32px 0;
}

.data-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.9rem; }
.data-table th, .data-table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.data-table th { background: var(--gray-bg); font-weight: 600; }

.news-list { list-style: none; }
.news-list li { padding: 20px 0; border-bottom: 1px solid var(--border); }
.news-list .news-date { font-size: 0.85rem; color: var(--text-light); margin-bottom: 4px; }
.news-list h3 { font-size: 1.05rem; }

.news-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.news-card { padding: 0; border-bottom: 1px solid var(--border); }
.news-card-link {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 24px 0;
  color: inherit;
  opacity: 1;
  transition: background 0.2s;
}
.news-card-link:hover { background: var(--gray-bg); opacity: 1; }
.news-card-img img { width: 100%; height: 140px; object-fit: cover; border-radius: 4px; }
.news-card-body h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--navy); }
.news-card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 8px; }
.news-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; font-size: 0.85rem; }
.news-category {
  background: var(--navy);
  color: var(--white);
  padding: 2px 10px;
  border-radius: 2px;
  font-size: 0.75rem;
}
.news-read-more { font-size: 0.85rem; color: var(--navy); font-weight: 600; }
.news-empty { padding: 2rem 0; color: #666; text-align: center; }

.breadcrumb { font-size: 0.85rem; color: var(--text-light); margin-bottom: 24px; }
.breadcrumb a { color: var(--navy); }
.breadcrumb span { color: var(--text); }

.news-detail-header { margin-bottom: 24px; }
.news-detail-header h1 { font-size: 1.8rem; color: var(--navy); line-height: 1.4; }
.news-detail-figure { margin-bottom: 28px; }
.news-detail-figure img { width: 100%; max-height: 420px; object-fit: cover; border-radius: 4px; }
.news-detail-content {
  font-size: 10.5pt;
  line-height: 1.75;
  color: var(--text);
  word-break: break-word;
  font-family: 宋体, SimSun, "Microsoft YaHei", "PingFang SC", serif;
}

.news-detail-content p.word-p-spacer {
  margin: 0;
  padding: 0;
  min-height: 0.65em;
  line-height: 1.2;
  font-size: 10.5pt;
}

.news-detail-content p:not([style]):not(.word-p-spacer) { margin: 0 0 0.5em; }

.news-detail-content p:has(> b > span[style*="14"]),
.news-detail-content p:has(> strong > span[style*="14"]) {
  margin: 1.25em 0 0.5em;
}

.news-detail-content h2:not([style]),
.news-detail-content h3:not([style]),
.news-detail-content h4:not([style]) {
  color: var(--navy);
  font-weight: 700;
  line-height: 1.45;
  margin: 1.25em 0 0.5em;
}

.news-detail-content h2:not([style]) { font-size: 14pt; }
.news-detail-content h3:not([style]) { font-size: 12pt; }

.news-detail-content ul:not([style]),
.news-detail-content ol:not([style]) {
  margin: 0 0 0.75em 1.4em;
  padding: 0;
}

.news-detail-content li:not([style]) { margin-bottom: 0.35em; }

.news-detail-content table {
  width: auto;
  max-width: 100%;
  border-collapse: collapse;
  margin: 16px auto;
}

.news-detail-content table:not([style]) th,
.news-detail-content table:not([style]) td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  vertical-align: top;
}

.news-detail-content img {
  max-width: 100%;
  height: auto;
}

.news-detail-nav { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }

@media (min-width: 900px) {
  :root {
    --max-w: min(calc(var(--content-width) * 1px), calc(100vw * var(--content-width) / var(--design-width)));
  }
}

/* 宽屏逐步放宽内边距与导航字号 */
@media (min-width: 1280px) {
  :root {
    --gutter: 40px;
    --content-inset: 64px;
  }

  .main-nav a {
    font-size: 1.0625rem;
    padding: 4px 10px;
  }
}

@media (min-width: 1440px) {
  :root {
    --gutter: 48px;
    --content-inset: 72px;
  }

  .main-nav a {
    font-size: 1.125rem;
    padding: 4px 12px;
  }
}

@media (max-width: 1280px) {
  .main-nav a {
    font-size: 0.875rem;
    padding: 4px 5px;
  }

  /* 凯闻教授：缩小证书/演讲图，查询文字单行显示 */
  .professor-section.container:not(.about-founder-section) .professor-verify-cert {
  }

  .professor-section.container:not(.about-founder-section) .professor-cell-verify {
    gap: 10px;
  }

  .professor-section.container:not(.about-founder-section) .professor-verify-text p {
    white-space: nowrap;
  }

  .professor-section.container:not(.about-founder-section) .professor-photo-sub {
    width: 100%;
    max-height: 118px;
    height: auto;
    object-fit: cover;
  }

  /* 信任状：缩小四证，查询文字单行显示 */
  .trust-certs-row {
    gap: 12px;
  }

  .trust-certs-imgs {
    gap: 4px;
  }

  .trust-certs-imgs img {
    width: 86px;
  }

  .trust-verify-text {
    font-size: 0.92rem;
    flex: 1 1 auto;
    min-width: 280px;
  }

  .trust-verify-text p {
    white-space: nowrap;
  }
}

@media (max-width: 767px) {
  :root {
    --gutter: 16px;
    --content-inset: 0;
  }
}

@media (max-width: 700px) {
  .news-card-link { grid-template-columns: 1fr; }
  .news-card-img img { height: 180px; }
}

@media (max-width: 900px) {
  /* 顶栏 */
  .top-bar {
    padding: 8px 0;
    font-size: 0.75rem;
  }

  .top-bar .container {
    flex-wrap: wrap;
    gap: 8px;
  }

  .brand-mini {
    font-size: 0.82rem;
    gap: 8px;
  }

  .brand-mini-logo {
    width: 30px;
    height: 30px;
  }

  .top-bar-extra {
    gap: 10px;
    font-size: 0.75rem;
    align-items: center;
  }

  .nav-toggle-top {
    display: inline-flex;
  }

  /* 首页：菜单按钮在顶栏，收起时不占空白导航条 */
  body:has(.top-bar) .main-nav:not(.open) {
    height: 0;
    min-height: 0;
    overflow: visible;
    border-bottom: none;
    background: transparent;
  }

  body:has(.top-bar) .main-nav:not(.open) > .container {
    display: none;
  }

  body:has(.top-bar) .main-nav:not(.open) > .nav-toggle-nav {
    display: none;
  }

  body:has(.top-bar) .main-nav.open {
    height: auto;
    background: var(--white);
    border-bottom: 1px solid var(--border);
  }

  body:has(.top-bar) .main-nav.open > .container {
    display: block;
  }

  /* 导航：折叠菜单 */
  .main-nav { position: sticky; top: 0; z-index: 100; }

  .nav-toggle-nav {
    display: inline-flex;
    position: absolute;
    right: var(--gutter);
    top: 8px;
    z-index: 2;
  }

  body:has(.top-bar) .nav-toggle-nav {
    display: none;
  }

  .main-nav:not(.open) {
    min-height: 52px;
  }

  body:has(.top-bar) .main-nav:not(.open) {
    min-height: 0;
  }

  .main-nav > .container {
    position: relative;
  }

  .main-nav .nav-inner {
    display: none;
    flex-direction: column;
    flex-wrap: nowrap;
    padding: 12px 0 8px;
    width: 100%;
    gap: 0;
  }

  .main-nav.open .nav-inner { display: flex; }

  .main-nav a {
    flex: none;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    text-align: left;
    padding: 12px 0;
    font-size: 0.95rem;
    white-space: normal;
  }

  /* 首页横幅 */
  .hero-banner-inner {
    padding: 32px var(--gutter) 40px;
  }

  .hero-banner-text h1 { font-size: 2.2rem; line-height: 1.35; }
  .hero-banner-text .hero-sub { font-size: 1.2rem; margin-top: 16px; }
  .hero-banner-text .hero-btns {
    flex-direction: column;
    align-items: center;
    gap: 14px;
    margin-top: 24px;
  }

  .hero-banner-text .hero-btns a { font-size: 1.1rem; }

  /* 轮播 */
  .hero-slide-wrap {
    flex-direction: column;
    gap: 20px;
    padding-top: 28px;
    padding-bottom: 48px;
    min-height: auto;
    text-align: center;
  }

  .hero-slide-media { flex: none; width: 100%; justify-content: center; }
  .hero-slide-media img { max-height: 200px; width: 100%; object-fit: contain; }
  .hero-slide-text { min-height: auto; align-items: center; width: 100%; }
  .hero-slide-text h1 { font-size: 1.65rem; line-height: 1.35; }
  .hero-slide-text .hero-lead { font-size: 1.05rem; margin-top: 12px; }
  .hero-slide-text .hero-sub { font-size: 0.95rem; }
  .hero-slide-text .hero-btns {
    justify-content: center;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding-top: 20px;
    margin-top: 0;
    width: 100%;
  }

  .hero-slide-text .hero-btns a { font-size: 0.9rem; }

  /* 数据条 */
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 36px 0;
  }

  .stat-item .num { font-size: 1.75rem; }
  .stat-item .label { font-size: 0.85rem; }

  /* 区块标题 */
  .section { padding: 36px 0; }
  .section h2 { font-size: 1.45rem; line-height: 1.35; }
  .section .section-desc { font-size: 0.9rem; margin-bottom: 24px; }

  /* 凯闻教授 — 首页 */
  .professor-section-home {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .professor-section-home > .professor-home-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    grid-template-areas:
      "creds"
      "cert"
      "portrait"
      "right";
    row-gap: 20px;
    column-gap: 0;
  }

  .professor-section-home .professor-cell-creds,
  .professor-section-home .professor-cell-cert,
  .professor-section-home .professor-cell-portrait,
  .professor-section-home .professor-cell-right {
    order: 0;
    height: auto;
    min-height: 0;
  }

  .professor-section-home .professor-cell-creds {
    justify-content: flex-start;
    padding-left: 0;
    padding-right: 0;
  }

  .professor-section-home .professor-cell-cert {
    justify-content: center;
    align-items: center;
  }

  .professor-section-home .professor-verify-cert {
    width: min(200px, 72vw);
  }

  .professor-section-home .professor-cert-qr {
    width: 44px;
    height: 44px;
  }

  .professor-section-home .professor-cell-portrait {
    padding-left: 0;
    padding-right: 0;
    justify-content: center;
    align-items: center;
  }

  .professor-section-home .professor-grid h2 {
    font-size: 1.28rem;
    margin-bottom: 10px;
  }

  .professor-section-home .professor-bio p {
    font-size: 0.8rem;
    line-height: 1.7;
  }

  .professor-section-home .professor-cell-right {
    align-items: stretch;
    text-align: left;
    gap: 12px;
  }

  .professor-section-home .professor-verify-text {
    font-size: 0.82rem;
    line-height: 1.55;
  }

  .professor-section-home .professor-verify-text .verify-title {
    font-size: 0.88rem;
  }

  .professor-section-home .professor-verify-text p {
    word-break: break-all;
  }

  .professor-section-home .professor-photo-main {
    width: auto;
    max-width: min(100%, 220px);
    max-height: 280px;
    height: auto;
    margin: 0 auto;
    object-position: center bottom;
  }

  .professor-section-home .professor-photo-sub {
    flex: none;
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 2px;
  }

  /* 我们的优势 / 8大区别 */
  .advantages-section,
  .geo-diff-section {
    padding: 28px 0;
  }

  .advantages-section h2,
  .geo-diff-section h2 {
    font-size: 1.2rem;
    margin-bottom: 14px;
  }

  .advantages-list li,
  .geo-diff-list li {
    font-size: 0.88rem;
    line-height: 1.65;
    margin-bottom: 8px;
    padding-bottom: 8px;
  }

  .professor-grid,
  .professor-section.container > .professor-grid {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 100%;
    column-gap: 0;
    row-gap: 20px;
  }

  .professor-cell-creds,
  .professor-cell-verify { justify-self: stretch; }

  .professor-cell-portrait,
  .professor-cell-speech { width: auto; justify-self: center; }

  .professor-cell-portrait { order: -2; }
  .professor-cell-creds { order: -1; }

  .professor-cell-verify {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .professor-section:not(.professor-section-home) .professor-photo-main { max-width: 180px; max-height: 240px; }
  .professor-cell-speech { max-height: none; width: 100%; max-width: 280px; }
  .professor-photo-sub { min-height: auto; max-height: none; width: 100%; }

  .professor-section.container:not(.about-founder-section) > .professor-grid .professor-cell-creds,
  .professor-section.container:not(.about-founder-section) > .professor-grid .professor-cell-verify { padding-left: 0; }

  .professor-section.container .professor-creds li { font-size: 0.95rem; }
  .professor-section.container .professor-more { text-align: center; }

  .professor-section.container > .professor-grid .professor-cell-portrait,
  .professor-section.container > .professor-grid .professor-cell-speech { justify-self: center; }

  /* 信任状 */
  .trust-list li { margin-bottom: 12px; }
  .trust-certs-row { flex-direction: column; align-items: stretch; gap: 16px; }
  .trust-certs-imgs { flex-wrap: wrap; justify-content: center; gap: 8px; }
  .trust-certs-imgs img { width: calc(50% - 8px); max-width: 120px; }
  .trust-verify-text { min-width: 0; text-align: left; font-size: 0.88rem; }

  .trust-verify-text p,
  .professor-section.container:not(.about-founder-section) .professor-verify-text p {
    white-space: normal;
    word-break: break-all;
  }

  .about-trust-section .about-trust-certs {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .about-trust-section .about-trust-verify {
    max-width: none;
    gap: 16px;
  }

  .about-trust-section .about-trust-qr {
    width: 72px;
    height: 72px;
  }

  /* 战略图 */
  .strategy-diagram-panel { padding: 20px 16px; }
  .strategy-diagram-panel h2 { font-size: 1.25rem; }
  .strategy-notice-bar { font-size: 0.78rem; }
  .strategy-tagline { font-size: 0.88rem; }

  /* CTA */
  .cta-band { padding: 36px 0; }
  .cta-band h2 { font-size: 1.15rem; line-height: 1.45; }
  .cta-band .cta-sub { font-size: 0.85rem; margin-bottom: 20px; }
  .cta-band .cta-btns { flex-direction: column; align-items: center; gap: 12px; }

  /* 页头 */
  .page-banner { padding: 32px 0; }
  .page-banner .container { flex-direction: column; text-align: center; gap: 20px; }
  .page-banner .banner-visual { width: 120px; margin: 0 auto; }
  .page-banner h1 { font-size: 1.5rem; }

  .page-sub .page-banner { padding: 32px 0; }
  .page-sub .page-banner .container {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .page-sub .page-banner .banner-visual { width: 140px; }
  .page-sub .page-banner h1 { font-size: 1.45rem; }
  .page-sub .page-banner .subtitle { font-size: 0.88rem; }

  /* 内页通用 */
  .hero-home .container { grid-template-columns: 1fr; text-align: center; }
  .professor-block { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .strategy-mode-cards { grid-template-columns: 1fr; max-width: 100%; }
  .strategy-adi-panel { padding: 0; }
  .strategy-adi-title { font-size: 1.15rem; }
  .strategy-adi-table { font-size: 0.82rem; min-width: 520px; }
  .strategy-adi-section .strategy-adi-panel { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .product-cards, .case-cards { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .cases-tag-grid { grid-template-columns: 1fr; padding: 16px; }
  .cases-rules-grid { grid-template-columns: 1fr; }
  .about-founder-section .about-founder-heading { margin-left: 0; }
  .about-founder-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "copy"
      "portrait"
      "verify"
      "speech";
    row-gap: 24px;
  }

  .about-founder-portrait,
  .about-founder-speech {
    width: 100%;
    justify-self: center;
  }

  .about-founder-section .about-founder-portrait .professor-photo-main,
  .about-founder-section .about-founder-speech .professor-photo-sub {
    width: 100%;
    max-width: 280px;
    height: auto;
    justify-self: center;
  }

  .about-founder-copy p { max-width: none; font-size: 0.88rem; }
  .about-verify-label { text-align: left; }
  .about-trademark-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .about-trademark { min-height: 64px; font-size: 0.95rem; padding: 10px 12px; }
  .about-sop-columns { grid-template-columns: 1fr; gap: 16px; }

  /* 表格：容器横向滚动 */
  .content-page {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .strategy-table,
  .methodology-table,
  .institute-table,
  .cases-metrics-table,
  .cases-index-table,
  .cases-detail-table,
  .products-guide-table,
  .products-spec-table,
  .faq-list table,
  .faq-list .faq-table {
    min-width: 480px;
  }

  .strategy-table { font-size: 0.8rem; }
  .strategy-table th, .strategy-table td { padding: 8px; }
  .methodology-pyramid .layer-strategy { width: 50%; }
  .methodology-pyramid .layer-execution { width: 70%; }
  .methodology-pyramid .layer-foundation { width: 92%; }
  .methodology-table { font-size: 0.78rem; }
  .methodology-table th, .methodology-table td { padding: 8px; }
  .institute-table { font-size: 0.78rem; }
  .institute-table th, .institute-table td { padding: 8px; }
  .institute-table-kv th { width: 72px; }
  .cases-metrics-table,
  .cases-index-table,
  .cases-detail-table { font-size: 0.78rem; }
  .cases-metrics-table th, .cases-metrics-table td,
  .cases-index-table th, .cases-index-table td,
  .cases-detail-table th, .cases-detail-table td { padding: 8px; }
  .cases-detail-table th { width: 72px; }
  .about-history-table { font-size: 0.82rem; }
  .about-history-table thead th:first-child,
  .about-history-table tbody th {
    width: 92px;
    padding-right: 24px;
  }
  .about-history-table th,
  .about-history-table td { padding: 6px 0; line-height: 1.65; }
  .products-guide-table th, .products-guide-table td { padding: 8px; }
  .products-spec-table th { width: 88px; font-size: 0.8rem; }

  /* 页脚 */
  .site-footer {
    padding: 32px 0 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "brand brand"
      "nav nav"
      "contact qr";
    gap: 24px 20px;
    margin-bottom: 24px;
  }

  .footer-brand {
    grid-area: brand;
  }

  .footer-grid > div:nth-child(2) {
    grid-area: nav;
  }

  .footer-grid > div:nth-child(3) {
    grid-area: contact;
    align-self: start;
  }

  .footer-qr {
    grid-area: qr;
    justify-self: end;
    align-self: start;
  }

  .footer-brand h3 {
    font-size: 0.95rem;
    line-height: 1.4;
  }

  .footer-nav-cols {
    flex-direction: row;
    gap: 20px;
  }

  .footer-nav-cols ul {
    flex: 1 1 0;
    min-width: 0;
  }

  .footer-nav-cols a,
  .footer-grid > div:nth-child(3) a {
    font-size: 0.85rem;
  }

  .footer-grid > div:nth-child(3) ul li {
    line-height: 1.55;
    word-break: break-all;
  }

  .footer-slogan {
    white-space: normal;
    overflow-wrap: anywhere;
    font-size: 0.78rem;
  }

  .footer-qr img {
    width: 80px;
    height: 80px;
  }

  .footer-bottom {
    padding-top: 16px;
  }

  /* 新闻详情 */
  .news-detail-header h1 { font-size: 1.35rem; }
  .news-detail-content { font-size: 0.95rem; }
  .content-page { padding: 28px 0 48px; }
}

@media (max-width: 600px) {
  .stats-row,
  .triangle-points,
  .process-steps,
  .certs-grid { grid-template-columns: 1fr; }

  .stat-item .num { font-size: 1.5rem; }

  .hero-banner-text h1 { font-size: 1.85rem; }
  .hero-slide-text h1 { font-size: 1.45rem; }

  .section h2 { font-size: 1.3rem; }

  .professor-section-home .professor-grid h2 {
    font-size: 1.18rem;
  }

  .professor-section-home .professor-verify-cert {
    width: min(168px, 68vw);
  }

  .professor-section-home .professor-cert-qr {
    width: 40px;
    height: 40px;
  }

  .professor-section-home .professor-photo-main {
    max-width: min(100%, 200px);
    max-height: 260px;
  }

  .advantages-section h2,
  .geo-diff-section h2 {
    font-size: 1.12rem;
  }

  .advantages-list li,
  .geo-diff-list li {
    font-size: 0.84rem;
  }

  .trust-certs-imgs img { width: calc(50% - 6px); max-width: none; }

  .top-bar-extra a:not(.top-bar-search) {
    display: none;
  }

  .footer-bottom p {
    font-size: 0.72rem;
    line-height: 1.6;
    white-space: normal;
    word-break: break-all;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "nav"
      "contact"
      "qr";
    gap: 20px;
  }

  .footer-qr {
    justify-self: center;
  }

  .footer-nav-cols {
    gap: 16px 24px;
  }
}