/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --color-bg: #F7F4EF;
  --color-surface: #FCFAF7;
  --color-primary: #3E2A1A;
  --color-accent: #8C5A3A;
  --color-accent-dark: #6F4629;
  --color-secondary: #5A7355;
  --color-border: #E5D9C8;
  --color-text: #2E2925;
  --color-muted: #8A7A6C;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(60, 40, 20, 0.08);
  --shadow-md: 0 4px 16px rgba(60, 40, 20, 0.12);
  --shadow-lg: 0 8px 30px rgba(60, 40, 20, 0.16);
  --space-section-mobile: 64px;
  --space-section-desktop: 96px;
  --container-max: 1200px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", serif;
}

/* ============ Reset & Base ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: linear-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 0.5px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

a:hover {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
}

button {
  font-family: var(--font-sans);
  cursor: pointer;
}

input, textarea {
  font-family: var(--font-sans);
  font-size: 15px;
}

ul, ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============ 容器 ============ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  border-bottom: none;
}

.brand:hover {
  border-bottom: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.brand-icon::before {
  content: "";
  width: 22px;
  height: 14px;
  border: 2px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 12px 12px;
  position: relative;
  top: 3px;
}

.brand-icon::after {
  content: "";
  position: absolute;
  top: 10px;
  width: 16px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
  font-family: var(--font-serif);
}

.brand-sub {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 15px;
  color: var(--color-text);
  text-decoration: none;
  padding: 6px 2px;
  position: relative;
  border-bottom: none;
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: var(--color-accent);
  border-bottom: none;
}

.main-nav a:hover::after {
  width: 100%;
}

.main-nav a.active {
  color: var(--color-accent);
  font-weight: 600;
}

.main-nav a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  margin: 5px auto;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer a {
  font-size: 22px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  border-bottom: none;
}

.mobile-drawer a:hover {
  color: var(--color-accent);
  border-bottom: none;
}

/* ============ 面包屑 ============ */
.breadcrumb-bar {
  padding: 14px 0 0;
  font-size: 13px;
  color: var(--color-muted);
}

.breadcrumb-bar a {
  color: var(--color-muted);
  text-decoration: none;
  border-bottom: none;
}

.breadcrumb-bar a:hover {
  color: var(--color-accent);
  border-bottom: none;
}

.breadcrumb-bar .current {
  color: var(--color-accent);
  font-weight: 600;
}

.breadcrumb-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
  color: var(--color-muted);
}

.breadcrumb-back:hover {
  color: var(--color-accent);
}

/* ============ Hero ============ */
.hero {
  background: linear-gradient(135deg, rgba(62, 42, 26, 0.94), rgba(62, 42, 26, 0.72)), var(--color-primary);
  background-size: cover;
  background-position: center;
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
  color: #F5EFE6;
}

.hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 400px;
  height: 400px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  top: -30px;
  right: 60px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  border-bottom: none;
}

.hero-breadcrumb a:hover {
  color: #fff;
  border-bottom: none;
}

.hero-breadcrumb .sep {
  margin: 0 8px;
}

.hero-breadcrumb .current {
  color: #D4A574;
  font-weight: 600;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-title-line {
  width: 56px;
  height: 2px;
  background: #D4A574;
  margin-bottom: 20px;
  position: relative;
}

.hero-title-line::before {
  content: "";
  position: absolute;
  left: 62px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D4A574;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 24px;
  max-width: 480px;
  letter-spacing: 0.5px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.hero-tag {
  font-size: 13px;
  padding: 4px 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 1px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
  text-decoration: none;
  border: none;
  line-height: 1.4;
}

.btn:hover {
  text-decoration: none;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-bottom: none;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  border-bottom: none;
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
}

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

.btn-outline-dark {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
}

.btn-outline-dark:hover {
  background: rgba(140, 90, 58, 0.08);
  border-color: var(--color-accent-dark);
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent-dark);
}

.hero-points {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-point {
  text-align: center;
}

.hero-point-num {
  font-size: 28px;
  font-weight: 800;
  color: #D4A574;
  line-height: 1.2;
  display: block;
}

.hero-point-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 1px;
}

.hero-visual {
  position: relative;
  z-index: 2;
  animation: fadeUp 0.6s ease 0.2s both;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(4px);
}

.hero-card-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-card-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.hero-card-item .num {
  font-size: 12px;
  font-weight: 700;
  color: #D4A574;
  background: rgba(255, 255, 255, 0.1);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ============ 板块标题 ============ */
.section {
  padding: var(--space-section-mobile) 0;
}

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

.section-kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary);
  margin-bottom: 14px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 34px;
  }
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}

@media (min-width: 768px) {
  .section-desc {
    font-size: 16px;
    margin-bottom: 40px;
  }
}

/* ============ 服务板块 ============ */
.guide-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.guide-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: start;
}

.guide-left .section-desc {
  margin-bottom: 20px;
}

.guide-index {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.guide-index-header {
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.guide-index-header span {
  font-size: 12px;
  color: var(--color-muted);
  font-weight: 400;
}

.guide-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease;
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.guide-item:last-child {
  border-bottom: none;
}

.guide-item:hover {
  background: rgba(229, 217, 200, 0.4);
  border-bottom-color: var(--color-border);
}

.guide-item .guide-num {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.7;
  min-width: 28px;
  font-family: var(--font-serif);
}

.guide-item .guide-text {
  flex: 1;
}

.guide-item .guide-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.guide-item .guide-desc {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

.guide-item .guide-arrow {
  font-size: 20px;
  color: var(--color-accent);
  transition: transform 0.3s ease;
  opacity: 0.5;
}

.guide-item:hover .guide-arrow {
  transform: translateX(6px);
  opacity: 1;
}

.guide-figure {
  margin-top: 28px;
}

.guide-figure img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 240px;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.guide-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 10px;
  text-align: center;
}

/* ============ 数据板块 ============ */
.stats-section {
  background: var(--color-primary);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.04), transparent 60%);
}

.stats-section .section-kicker {
  color: #D4A574;
}

.stats-section .section-title {
  color: #fff;
}

.stats-section .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.3s ease, transform 0.3s ease;
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-4px);
}

.stat-icon {
  font-size: 28px;
  margin-bottom: 10px;
  display: block;
}

.stat-num {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  display: block;
  font-family: var(--font-serif);
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

/* ============ 精选分享板块 ============ */
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.showcase-main {
  grid-row: span 2;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: block;
  background: var(--color-surface);
}

.showcase-main:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.showcase-main img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.showcase-main:hover img {
  transform: scale(1.03);
}

.showcase-main .showcase-body {
  padding: 24px;
}

.showcase-main .showcase-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
  font-family: var(--font-serif);
  line-height: 1.5;
}

.showcase-main .showcase-excerpt {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.showcase-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
  text-decoration: none;
  align-items: center;
}

.showcase-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(140, 90, 58, 0.4);
  border-bottom-color: rgba(140, 90, 58, 0.4);
}

.showcase-card img {
  width: 120px;
  height: 90px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  transition: transform 0.4s ease;
}

.showcase-card:hover img {
  transform: scale(1.03);
}

.showcase-card .showcase-info {
  flex: 1;
  overflow: hidden;
}

.showcase-card .showcase-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.showcase-card .showcase-meta {
  font-size: 12px;
  color: var(--color-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--color-secondary);
  color: #fff;
  margin-right: 8px;
  margin-bottom: 6px;
}

.badge-hot {
  background: var(--color-accent);
}

.badge-new {
  background: var(--color-secondary);
}

.badge-featured {
  background: #C0A080;
}

.showcase-cta {
  margin-top: 32px;
  border: 1px dashed var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  text-align: center;
  font-size: 15px;
  color: var(--color-primary);
  background: rgba(140, 90, 58, 0.03);
}

.showcase-cta a {
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: none;
}

.showcase-cta a:hover {
  border-bottom: 1px solid var(--color-accent);
}

/* ============ 方案板块 ============ */
.solution-section {
  background: var(--color-bg);
}

.solution-card {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 28px;
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  position: relative;
}

.solution-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.solution-card:nth-child(even) {
  background: rgba(247, 244, 239, 0.6);
}

.solution-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 28px;
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.solution-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  opacity: 0.8;
}

.solution-main {
  flex: 1;
}

.solution-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  font-family: var(--font-serif);
}

.solution-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 10px;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.solution-tag {
  font-size: 12px;
  padding: 3px 10px;
  background: rgba(90, 115, 85, 0.12);
  color: var(--color-secondary);
  border-radius: var(--radius-full);
  font-weight: 500;
}

.solution-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
  border-bottom: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.solution-link:hover {
  border-bottom: none;
  color: var(--color-accent-dark);
}

.solution-link .arrow {
  transition: transform 0.3s ease;
}

.solution-link:hover .arrow {
  transform: translateX(4px);
}

/* ============ FAQ 板块 ============ */
.faq-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 32px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: color 0.3s ease;
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  font-size: 20px;
  color: var(--color-accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 18px 16px;
  padding-top: 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.faq-helper {
  margin-top: 32px;
  font-size: 14px;
  color: var(--color-muted);
  text-align: center;
}

.faq-helper a {
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: none;
}

.faq-helper a:hover {
  border-bottom: 1px solid var(--color-accent);
}

/* ============ 联系板块 ============ */
.contact-section {
  background: linear-gradient(rgba(247, 244, 239, 0.9), rgba(247, 244, 239, 0.9)), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: start;
}

.contact-side {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
}

.contact-side .section-kicker {
  color: #D4A574;
}

.contact-side .section-title {
  color: #fff;
  margin-bottom: 12px;
}

.contact-side p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 16px;
}

.contact-email {
  font-size: 15px;
  color: var(--color-border);
  letter-spacing: 0.5px;
  word-break: break-all;
}

.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-label .required {
  color: #C0392B;
  margin-left: 2px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(140, 90, 58, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #B0A89E;
}

.btn-submit {
  width: 100%;
  margin-top: 8px;
}

.btn-submit:disabled {
  background: var(--color-secondary);
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.form-disclaimer {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 12px;
  text-align: center;
}

.contact-breadcrumb {
  margin-top: 28px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

.contact-breadcrumb a {
  color: var(--color-muted);
  border-bottom: none;
}

.contact-breadcrumb a:hover {
  color: var(--color-accent);
  border-bottom: none;
}

.contact-breadcrumb .current {
  color: var(--color-accent);
  font-weight: 600;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-serif);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-keyword {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 3px 12px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  text-decoration: none;
  border-bottom: none;
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 6px;
  border-bottom: none;
}

.footer-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  text-decoration: none;
  border-bottom: none;
}

.footer-bottom a:hover {
  color: #fff;
  border-bottom: none;
}

/* ============ 滚动淡入 ============ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ 响应式 ============ */
@media (min-width: 992px) {
  .mobile-drawer, .nav-toggle {
    display: none !important;
  }
}

@media (max-width: 991px) {
  .main-nav {
    display: none;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero-inner {
    grid-template-columns: 1fr;
  }
  
  .hero-visual {
    margin-top: 16px;
  }
  
  .guide-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-card {
    grid-template-columns: 56px 1fr;
    gap: 16px;
  }
  
  .solution-link {
    grid-column: 2;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .hero {
    padding: 40px 0 48px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-desc {
    font-size: 15px;
  }
  
  .hero-points {
    gap: 20px;
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  
  .showcase-main img {
    height: 220px;
  }
  
  .showcase-card {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .showcase-card img {
    width: 100%;
    height: 160px;
  }
  
  .solution-card {
    grid-template-columns: 48px 1fr;
    padding: 20px;
    gap: 14px;
  }
  
  .solution-num {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
  
  .solution-title {
    font-size: 16px;
  }
  
  .solution-desc {
    font-size: 13px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .contact-form-wrap {
    padding: 20px;
  }
  
  .hero-card {
    padding: 24px 20px;
  }
}

@media (max-width: 575px) {
  .container {
    padding: 0 16px;
  }
  
  .brand-name {
    font-size: 16px;
  }
  
  .brand-sub {
    font-size: 10px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .section-desc {
    font-size: 14px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .stat-num {
    font-size: 36px;
  }
  
  .stat-label {
    font-size: 12px;
  }
  
  .guide-item {
    padding: 14px 16px;
    gap: 12px;
  }
  
  .guide-item .guide-desc {
    font-size: 12px;
  }
  
  .hero-ctas {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .hero-tags {
    gap: 6px;
  }
  
  .hero-tag {
    font-size: 12px;
    padding: 3px 10px;
  }
}

/* ============ 动效偏好 ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
  
  .fade-in {
    opacity: 1;
    transform: none;
  }
}