/* ==========================================================================
   车优多官网 · 主样式
   风格：白底 + 深色块 + 金色细节（呼应奖牌），移动端优先
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 色板 */
  --ink: #14161a;
  --ink-2: #1e2126;
  --ink-3: #2b3039;
  --gold: #bf9a52;
  --gold-bright: #d4af6a;
  --gold-pale: #f7f2e8;
  --gold-line: #e3d5b8;
  --bg: #ffffff;
  --bg-alt: #f8f7f4;
  --line: #e7e4dd;
  --text: #1f2328;
  --text-2: #5b6270;
  --text-3: #8b919c;

  /* 排版 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC",
    "SimSun", "STSong", Georgia, serif;

  /* 尺度 */
  --wrap: 1200px;
  --wrap-narrow: 880px;
  --radius: 4px;
  --radius-lg: 8px;
  --nav-h: 68px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ---------- 3. 通用容器与工具类 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.wrap-narrow {
  max-width: var(--wrap-narrow);
}

.section {
  padding: 64px 0;
}

.section--alt {
  background: var(--bg-alt);
}

.section--ink {
  background: var(--ink);
  color: #fff;
}

@media (min-width: 768px) {
  .section {
    padding: 96px 0;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: 120px 0;
  }
}

/* 版块标题 */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 18px;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.section-head p {
  margin-top: 16px;
  color: var(--text-2);
  font-size: 15px;
}

.section--ink .section-head p {
  color: rgba(255, 255, 255, 0.68);
}

@media (min-width: 768px) {
  .section-head {
    margin-bottom: 56px;
  }
  .section-head h2 {
    font-size: 34px;
  }
}

@media (min-width: 1024px) {
  .section-head h2 {
    font-size: 38px;
  }
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all 0.28s var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gold);
  color: #fff;
}

.btn--primary:hover {
  background: var(--gold-bright);
  transform: translateY(-1px);
}

.btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}

.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn--outline {
  border: 1px solid var(--gold-line);
  color: var(--text);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 4. 顶部导航 ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

.nav.is-scrolled {
  border-bottom-color: var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.nav__logo small {
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
}

.nav__links {
  display: none;
  gap: 32px;
  font-size: 15px;
}

.nav__links a {
  color: var(--text-2);
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--ink);
}

.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--gold);
}

.nav__cta {
  display: none;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s, opacity 0.3s;
}

.nav__toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* 移动端抽屉 */
.nav__drawer {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 8px 20px 24px;
  display: none;
  flex-direction: column;
  z-index: 99;
  max-height: calc(100vh - var(--nav-h));
  overflow-y: auto;
}

.nav__drawer.is-open {
  display: flex;
}

.nav__drawer a {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  color: var(--text);
}

.nav__drawer .btn {
  margin-top: 20px;
}

@media (min-width: 1024px) {
  .nav__links,
  .nav__cta {
    display: flex;
  }
  .nav__toggle,
  .nav__drawer {
    display: none !important;
  }
}

/* ---------- 5. Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  padding: calc(var(--nav-h) + 48px) 0 64px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      100deg,
      rgba(17, 19, 23, 0.975) 0%,
      rgba(17, 19, 23, 0.94) 42%,
      rgba(17, 19, 23, 0.72) 78%,
      rgba(17, 19, 23, 0.6) 100%
    ),
    url("../img/medals/IMG_5726-card.webp");
  background-size: cover;
  background-position: center 30%;
  transform: scale(1.02);
}

@media (max-width: 767px) {
  .hero__bg {
    background-image: linear-gradient(
        170deg,
        rgba(17, 19, 23, 0.93) 0%,
        rgba(17, 19, 23, 0.96) 55%,
        rgba(17, 19, 23, 0.98) 100%
      ),
      url("../img/medals/IMG_5726-card.webp");
    background-position: center;
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  border: 1px solid rgba(191, 154, 82, 0.5);
  border-radius: 100px;
  font-size: 13px;
  color: var(--gold-bright);
  margin-bottom: 26px;
}

.hero__badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  max-width: 15em;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold-bright);
}

.hero__sub {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.72);
  max-width: 34em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

@media (min-width: 768px) {
  .hero {
    min-height: 92vh;
    padding: calc(var(--nav-h) + 72px) 0 80px;
  }
  .hero h1 {
    font-size: 46px;
  }
  .hero__sub {
    font-size: 17px;
  }
}

@media (min-width: 1024px) {
  .hero h1 {
    font-size: 56px;
  }
}

/* ---------- 6. 数据条 ---------- */
.stats {
  background: var(--ink-2);
  color: #fff;
  padding: 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.stats__item {
  background: var(--ink-2);
  padding: 28px 22px;
}

.stats__num {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 600;
  color: var(--gold-bright);
  line-height: 1.1;
}

.stats__num small {
  font-size: 15px;
  margin-left: 3px;
  color: var(--gold);
}

.stats__label {
  margin-top: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

@media (min-width: 768px) {
  .stats__grid {
    grid-template-columns: repeat(5, 1fr);
  }
  .stats__item {
    padding: 36px 20px;
  }
  .stats__num {
    font-size: 36px;
  }
}

/* ---------- 7. 业务卡片 ---------- */
.cards {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

.card {
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.4s var(--ease);
}

.card:hover {
  border-color: var(--gold-line);
  transform: translateY(-3px);
}

.card:hover::before {
  width: 100%;
}

.card__num {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.85;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.card__tags span {
  font-size: 12.5px;
  padding: 4px 11px;
  background: var(--gold-pale);
  color: #8a6f33;
  border-radius: 100px;
}

/* ---------- 8. 荣誉 · 九年主线 ---------- */
.honor-hl {
  background: var(--ink);
  color: #fff;
}

.honor-hl__grid {
  display: grid;
  gap: 40px;
}

.honor-hl__lead h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.35;
  color: #fff;
}

.honor-hl__lead h2 em {
  font-style: normal;
  color: var(--gold-bright);
}

.honor-hl__lead p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
  line-height: 1.9;
}

.honor-hl__path {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 6px;
  align-items: center;
}

.honor-hl__year {
  font-family: var(--font-serif);
  font-size: 13px;
  padding: 5px 10px;
  border: 1px solid rgba(191, 154, 82, 0.42);
  border-radius: var(--radius);
  color: var(--gold-bright);
  white-space: nowrap;
  transition: all 0.25s var(--ease);
}

.honor-hl__year:hover {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}

.honor-hl__year[data-tier="2"] {
  border-color: rgba(191, 154, 82, 0.7);
  color: #fff;
}

.honor-hl__year[data-tier="3"] {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
  font-weight: 500;
}

.honor-hl__legend {
  margin-top: 18px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.42);
}

.honor-hl__figures {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.honor-hl__figures figure {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
  cursor: zoom-in;
}

.honor-hl__figures img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform 0.5s var(--ease);
}

.honor-hl__figures figure:hover img {
  transform: scale(1.04);
}

.honor-hl__figures figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 12px 10px;
  font-size: 12px;
  line-height: 1.5;
  color: #fff;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.78));
}

.honor-hl__figures figcaption b {
  color: var(--gold-bright);
  font-weight: 500;
}

@media (min-width: 1024px) {
  .honor-hl__grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .honor-hl__lead h2 {
    font-size: 36px;
  }
  .honor-hl__figures {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 9. 荣誉墙 ---------- */
.wall {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (min-width: 640px) {
  .wall {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}

@media (min-width: 1024px) {
  .wall {
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }
}

.wall__item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-alt);
  cursor: zoom-in;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.wall__item:hover {
  border-color: var(--gold);
  box-shadow: 0 8px 28px rgba(20, 22, 26, 0.1);
}

.wall__item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.wall__item:hover img {
  transform: scale(1.05);
}

.wall__meta {
  padding: 12px 12px 14px;
  background: #fff;
}

.wall__meta b {
  display: block;
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.45;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.wall__meta span {
  display: block;
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--text-3);
}

/* 筛选 */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filters button {
  padding: 7px 15px;
  font-size: 13.5px;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--text-2);
  transition: all 0.25s var(--ease);
}

.filters button:hover {
  border-color: var(--gold-line);
  color: var(--text);
}

.filters button.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* ---------- 10. 发展历程 ---------- */
.hist {
  position: relative;
  padding-left: 26px;
}

.hist::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--gold-line), var(--line));
}

.hist__item {
  position: relative;
  padding-bottom: 36px;
}

.hist__item:last-child {
  padding-bottom: 0;
}

.hist__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--gold);
}

.hist__year {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.hist__title {
  font-size: 17px;
  font-weight: 600;
  margin-top: 6px;
}

.hist__desc {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.85;
}

@media (min-width: 768px) {
  .hist {
    padding-left: 34px;
  }
  .hist::before {
    left: 7px;
  }
  .hist__item::before {
    left: -33px;
    width: 13px;
    height: 13px;
  }
  .hist__title {
    font-size: 19px;
  }
}

/* ---------- 11. 门店与实力 ---------- */
.split {
  display: grid;
  gap: 32px;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
  }
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.figure-grid figure {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-alt);
  cursor: zoom-in;
}

.figure-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.figure-grid figure:hover img {
  transform: scale(1.05);
}

.figure-grid figure:first-child {
  grid-column: span 2;
}

.figure-grid figure:first-child img {
  aspect-ratio: 16 / 9;
}

/* 实力清单 */
.facts {
  display: grid;
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.facts__row {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.facts__key {
  flex: 0 0 88px;
  font-size: 13px;
  color: var(--text-3);
}

.facts__val {
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.7;
}

/* ---------- 12. 品牌矩阵 ---------- */
.brands {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.brands__item {
  background: #fff;
  padding: 26px 20px;
  text-align: center;
  transition: background 0.3s;
}

.brands__item:hover {
  background: var(--gold-pale);
}

.brands__name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.brands__desc {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--text-3);
}

@media (min-width: 768px) {
  .brands {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ---------- 13. 服务流程 ---------- */
.steps {
  display: grid;
  gap: 0;
}

.steps__item {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 18px;
}

.steps__item:first-child {
  border-top: 1px solid var(--line);
}

.steps__n {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--gold);
  line-height: 1.5;
}

.steps__t {
  font-size: 17px;
  font-weight: 600;
}

.steps__d {
  margin-top: 6px;
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.8;
}

@media (min-width: 1024px) {
  .steps {
    grid-template-columns: repeat(5, 1fr);
  }
  .steps__item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 24px;
    border-bottom: none;
    border-left: 1px solid var(--line);
  }
  .steps__item:first-child {
    border-top: none;
    padding-left: 0;
    border-left: none;
  }
}

/* ---------- 14. FAQ ---------- */
.faq__item {
  border-bottom: 1px solid var(--line);
}

.faq__q {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  transition: color 0.25s;
}

.faq__q:hover {
  color: var(--gold);
}

.faq__icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  position: relative;
  margin-top: 4px;
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.faq__icon::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 1.5px;
}

.faq__icon::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 1.5px;
}

.faq__item.is-open .faq__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq__a p {
  padding: 0 0 24px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.9;
}

/* ---------- 15. 联系 CTA ---------- */
.cta {
  background: var(--ink);
  color: #fff;
  text-align: center;
}

.cta h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.4;
}

.cta p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

.cta__note {
  margin-top: 26px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}

@media (min-width: 768px) {
  .cta h2 {
    font-size: 36px;
  }
}

/* ---------- 16. 页脚 ---------- */
.footer {
  background: var(--ink-2);
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  padding: 56px 0 32px;
}

.footer__grid {
  display: grid;
  gap: 36px;
}

.footer h4 {
  font-size: 14px;
  color: #fff;
  font-weight: 500;
  margin-bottom: 16px;
}

.footer__list li {
  padding: 5px 0;
  line-height: 1.7;
}

.footer__list a:hover {
  color: var(--gold-bright);
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.footer__brand p {
  line-height: 1.9;
  font-size: 13.5px;
}

.footer__qr {
  display: flex;
  gap: 20px;
  margin-top: 22px;
}

.footer__qr div {
  text-align: center;
}

.footer__qr span {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.42);
}

.footer__qr img,
.footer__qr .qr-ph {
  width: 92px;
  height: 92px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  object-fit: cover;
}

.footer__bottom {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.38);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 1.6fr 1fr 1fr;
  }
}

/* ---------- 17. 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(12, 13, 16, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 76vh;
  width: auto;
  border-radius: var(--radius);
}

.lightbox__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 32px;
  text-align: center;
  color: #fff;
  font-size: 14px;
  padding: 0 24px;
}

.lightbox__cap b {
  color: var(--gold-bright);
  font-weight: 500;
}

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  color: #fff;
  font-size: 20px;
  line-height: 1;
  transition: all 0.25s;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

/* ---------- 18. 滚动入场动效 ---------- */
/* 只在 JS 可用时隐藏，保证无 JS / 抓取工具也能读到全部内容（GEO 关键） */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
}

.reveal {
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 19. FAQ 静态展示（全部展开，利于 AI 抓取） ---------- */
.faq--open .faq__a {
  max-height: none !important;
}

.faq--open .faq__q {
  cursor: default;
  padding-bottom: 10px;
}

.faq--open .faq__q:hover {
  color: var(--text);
}

.faq--open .faq__icon {
  display: none;
}

.faq--open .faq__q::before {
  content: "Q";
  flex: 0 0 auto;
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--gold);
  margin-right: 2px;
}

.qa-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 8px;
}

.qa-toc a {
  font-size: 13.5px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--text-2);
  transition: all 0.25s var(--ease);
}

.qa-toc a:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.qa-answer-hint {
  font-size: 13px;
  color: var(--text-3);
  padding: 0 0 20px;
  line-height: 1.8;
}

.faq-group {
  padding-top: 48px;
}

.faq-group > h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.faq-group > .faq-group__desc {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 18px;
}

@media (min-width: 768px) {
  .faq-group {
    padding-top: 64px;
  }
  .faq-group > h2 {
    font-size: 26px;
  }
}

/* ---------- 20. 子页通用 ---------- */
.page-head {
  background: var(--ink);
  color: #fff;
  padding: calc(var(--nav-h) + 56px) 0 56px;
}

.page-head h1 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.35;
}

.page-head p {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 15px;
  max-width: 44em;
  line-height: 1.9;
}

.crumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
  margin-bottom: 18px;
}

.crumb a:hover {
  color: var(--gold-bright);
}

@media (min-width: 768px) {
  .page-head {
    padding: calc(var(--nav-h) + 80px) 0 72px;
  }
  .page-head h1 {
    font-size: 40px;
  }
}

/* ---------- 21. 发展历程 · 四个转折点 ---------- */
.turning {
  display: grid;
  gap: 24px;
}

.turning__item {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 26px 24px 28px;
}

.turning__no {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--gold-line);
  letter-spacing: 0.02em;
}

.turning__title {
  margin-top: 12px;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.turning__item p {
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text-2);
}

@media (min-width: 768px) {
  .turning {
    grid-template-columns: 1fr 1fr;
    gap: 28px 32px;
  }
  .turning__item {
    padding: 32px 30px 34px;
  }
  .turning__title {
    font-size: 21px;
  }
}

/* ---------- 22. 发展历程 · 荣誉路径 ---------- */
.honor-path {
  border-top: 1px solid var(--line);
}

.honor-path__row {
  display: grid;
  grid-template-columns: 58px 1fr 68px;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.honor-path__year {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.honor-path__award {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.6;
}

.honor-path__award.is-top {
  color: var(--text);
  font-weight: 600;
}

.honor-path figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-alt);
  cursor: zoom-in;
}

.honor-path figure img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}

.honor-path figure:hover img {
  transform: scale(1.07);
}

@media (min-width: 768px) {
  .honor-path__row {
    grid-template-columns: 104px 1fr 104px;
    gap: 26px;
    padding: 16px 0;
  }
  .honor-path__year {
    font-size: 26px;
  }
  .honor-path__award {
    font-size: 17px;
  }
}


/* ---------- 21. 信源矩阵 ---------- */
.source-matrix {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}
.source-tier {
  border-radius: var(--r-lg);
  border: 0.5px solid var(--line);
  background: #fff;
  overflow: hidden;
}
.source-tier__head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  background: var(--bg-alt);
  border-bottom: 0.5px solid var(--line);
}
.source-tier__badge {
  font-size: 14px; font-weight: 500; color: var(--text-1);
}
.source-tier__weight {
  font-size: 12px; color: var(--text-3);
}
.source-tier--s .source-tier__head { border-top: 3px solid var(--gold); }
.source-tier--b .source-tier__head { border-top: 3px solid var(--blue); }
.source-tier--c .source-tier__head { border-top: 3px solid var(--text-3); }
.source-tier__body { padding: 16px 18px 18px; }
.source-tier__body h4 {
  font-size: 13px; font-weight: 500; margin-top: 8px; margin-bottom: 6px;
  color: var(--text-2); text-transform: uppercase; letter-spacing: 0.04em;
}
.source-tier__body h4:first-of-type { margin-top: 0; }
.source-tier__body ul {
  margin: 0 0 14px; padding-left: 20px; list-style: disc;
  font-size: 14px; line-height: 1.85; color: var(--text-2);
}
.source-tier__body li + li { margin-top: 4px; }
.source-tier__body code {
  font-size: 12.5px; padding: 1px 6px; border-radius: 3px;
  background: var(--bg-alt); color: var(--text-1);
}

/* ---------- 22. 文章专栏（长尾 SEO/GEO）---------- */
.article-grid {
  display: grid; gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .article-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .article-grid { grid-template-columns: repeat(3, 1fr); } }
.article-card {
  border-radius: var(--r-lg);
  border: 0.5px solid var(--line);
  background: #fff;
  display: flex; flex-direction: column;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(20,22,26,.06);
}
.article-card__head {
  padding: 24px 24px 12px;
  border-bottom: 0.5px solid var(--line);
}
.article-card__badge {
  display: inline-block; font-size: 11px; padding: 3px 9px;
  border-radius: 4px; background: var(--bg-alt);
  color: var(--text-2); margin-bottom: 10px;
}
.article-card__title {
  font-size: 18px; font-weight: 500; color: var(--text-1);
  line-height: 1.45;
}
.article-card__body {
  padding: 16px 24px 22px; font-size: 14px;
  color: var(--text-2); line-height: 1.75; flex: 1;
}
.article-card__meta {
  padding: 14px 24px; border-top: 0.5px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--text-3);
}
.article-card__cat {
  display: inline-block; padding: 2px 8px; border-radius: 3px;
  background: var(--gold-soft); color: var(--gold-bright);
  font-size: 11px; font-weight: 500;
}

.toc-rail {
  position: sticky; top: calc(var(--nav-h) + 16px);
  border-left: 2px solid var(--line); padding-left: 18px;
  font-size: 14px; line-height: 1.85;
}
.toc-rail a { color: var(--text-2); display: block; padding: 4px 0; }
.toc-rail a:hover { color: var(--gold); }

@media (min-width: 1024px) {
  .art-with-toc {
    display: grid; grid-template-columns: minmax(0,1fr) 240px;
    gap: 40px;
  }
}


/* ---------- 23. 文章专栏表格 ---------- */
/* 移动端宽表横向滚动容器（5 列价格表在手机上不撑破屏幕） */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 20px 0;
  border-radius: 6px;
}
.table-scroll .article-table { margin: 0; }
.table-scroll::-webkit-scrollbar { height: 4px; }
.table-scroll::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }
@media (max-width: 767px) {
  .table-scroll .article-table { min-width: 420px; }
  .article-table th, .article-table td { padding: 8px 10px; font-size: 13px; }
}
.article-table {
  width: 100%; border-collapse: collapse; margin: 20px 0;
  font-size: 14px; line-height: 1.6;
  border: 0.5px solid var(--line);
}
.article-table th, .article-table td {
  padding: 10px 14px;
  border: 0.5px solid var(--line);
  text-align: left; vertical-align: top;
}
.article-table thead th {
  background: var(--bg-alt);
  font-weight: 500; font-size: 13px; color: var(--text-1);
}
.article-table tbody tr:nth-child(even) td {
  background: rgba(232,225,202,.04);
}
.article-table tbody td {
  color: var(--text-2);
}

blockquote {
  margin: 16px 0; padding: 12px 0 12px 18px;
  border-left: 3px solid var(--gold);
  background: var(--bg-alt);
  border-radius: 0 6px 6px 0;
  color: var(--text-2);
  font-size: 14px;
}

@media (min-width: 768px) {
  .article-table { font-size: 14.5px; }
}


/* ---------- 24. 门面文高亮卡 ---------- */
.hot-grid {
  display: grid; gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .hot-grid { grid-template-columns: repeat(2, 1fr); } }
.hot-card { transition: transform .2s var(--ease), box-shadow .2s var(--ease); }
.hot-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(20,22,26,.05);
}
.hot-card--featured { box-shadow: 0 2px 10px rgba(191,154,82,.12); }