/* ========================================
   合规出海 - Design System & Global Styles
   ======================================== */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --c-primary: #2563EB;
  --c-primary-dark: #1D4ED8;
  --c-primary-light: #DBEAFE;
  --c-primary-50: #EFF6FF;
  --c-accent: #059669;
  --c-accent-light: #D1FAE5;
  --c-danger: #DC2626;
  --c-danger-light: #FEE2E2;
  --c-warning: #D97706;
  --c-warning-light: #FEF3C7;

  /* Neutrals */
  --c-bg: #F8FAFC;
  --c-bg-dark: #0F172A;
  --c-bg-dark-2: #1E293B;
  --c-white: #FFFFFF;
  --c-card: #FFFFFF;
  --c-border: #E2E8F0;
  --c-border-light: #F1F5F9;

  /* Text */
  --c-text: #1E293B;
  --c-text-secondary: #64748B;
  --c-text-light: #94A3B8;
  --c-text-white: #F8FAFC;

  /* Typography */
  --ff-heading: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --ff-body: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --ff-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --s-xs: 0.25rem;
  --s-sm: 0.5rem;
  --s-md: 1rem;
  --s-lg: 1.5rem;
  --s-xl: 2rem;
  --s-2xl: 3rem;
  --s-3xl: 4rem;
  --s-4xl: 6rem;

  /* Radius */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

  /* Layout */
  --max-w: 1200px;
  --nav-h: 72px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--ff-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  font-size: 1rem;
  overflow-x: hidden;
}
a { color: var(--c-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--c-primary-dark); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { font-family: var(--ff-heading); font-weight: 700; line-height: 1.3; color: var(--c-text); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p { margin-bottom: var(--s-md); line-height: 1.7; }
small { font-size: 0.875rem; }
strong { font-weight: 600; }

.section-title {
  text-align: center;
  margin-bottom: var(--s-lg);
}
.section-subtitle {
  text-align: center;
  color: var(--c-text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--s-3xl);
}

/* --- Layout --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s-lg);
}
.section {
  padding: var(--s-4xl) 0;
}
.section--dark {
  background: var(--c-bg-dark);
  color: var(--c-text-white);
}
.section--dark h2, .section--dark h3 { color: var(--c-text-white); }
.section--alt {
  background: var(--c-white);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background 0.3s, box-shadow 0.3s;
}
.nav--scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--c-text);
}
.nav__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}
.nav__logo-img {
  height: 38px;
  width: auto;
}
.footer__logo-img {
  height: 34px;
  width: auto;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--s-xl);
}
.nav__link {
  font-size: 0.95rem;
  color: var(--c-text-secondary);
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav__link:hover, .nav__link--active { color: var(--c-primary); }
.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: 1px;
}
.nav__cta {
  padding: 0.5rem 1.25rem;
  background: var(--c-primary);
  color: white !important;
  border-radius: var(--r-full);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}
.nav__cta:hover { background: var(--c-primary-dark); transform: translateY(-1px); }

.nav__user {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__logout-btn {
  padding: 6px 14px;
  border: 1px solid rgba(59, 130, 246, 0.3);
  background: transparent;
  color: var(--c-primary);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}
.nav__logout-btn:hover {
  background: var(--c-primary-50);
  border-color: var(--c-primary);
}

/* Mobile nav */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-full);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s;
  text-align: center;
  justify-content: center;
}
.btn--primary {
  background: var(--c-primary);
  color: white;
}
.btn--primary:hover {
  background: var(--c-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,0.3);
}
.btn--outline {
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
  background: transparent;
}
.btn--outline:hover {
  background: var(--c-primary-50);
  color: var(--c-primary);
}
.btn--accent {
  background: var(--c-accent);
  color: white;
}
.btn--accent:hover {
  background: #047857;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(5,150,105,0.3);
}
.btn--white {
  background: white;
  color: var(--c-primary);
}
.btn--white:hover {
  background: var(--c-primary-50);
  color: var(--c-primary);
  transform: translateY(-2px);
}
.btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
}

/* --- Cards --- */
.card {
  background: var(--c-card);
  border-radius: var(--r-lg);
  padding: var(--s-xl);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--c-border-light);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--s-lg);
}
.card__icon--blue { background: var(--c-primary-light); color: var(--c-primary); }
.card__icon--green { background: var(--c-accent-light); color: var(--c-accent); }
.card__icon--red { background: var(--c-danger-light); color: var(--c-danger); }
.card__icon--yellow { background: var(--c-warning-light); color: var(--c-warning); }

.card__title {
  font-size: 1.2rem;
  margin-bottom: var(--s-sm);
}
.card__desc {
  color: var(--c-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--s-md);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Grid */
.grid { display: grid; gap: var(--s-xl); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* --- Hero --- */
.hero {
  padding-top: calc(var(--nav-h) + var(--s-4xl));
  padding-bottom: var(--s-4xl);
  background: linear-gradient(180deg, var(--c-white) 0%, var(--c-primary-50) 100%);
  position: relative;
  overflow: hidden;
}
.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-sm);
  padding: 0.375rem 1rem;
  background: var(--c-accent-light);
  color: var(--c-accent);
  border-radius: var(--r-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--s-xl);
}
.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: var(--s-lg);
  line-height: 1.2;
}
.hero__title span { color: var(--c-primary); }
.hero__subtitle {
  font-size: 1.15rem;
  color: var(--c-text-secondary);
  margin-bottom: var(--s-2xl);
  line-height: 1.7;
}
.hero__actions {
  display: flex;
  gap: var(--s-md);
  justify-content: center;
  flex-wrap: wrap;
}
.hero__bg-pattern {
  position: absolute;
  top: 0;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* --- Stats Bar --- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-lg);
  padding: var(--s-2xl) 0;
}
.stat {
  text-align: center;
  padding: var(--s-xl);
}
.stat__number {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  color: var(--c-primary);
  font-family: var(--ff-heading);
}
.stat__label {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin-top: var(--s-xs);
}

/* --- Social Proof --- */
.social-proof {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--s-2xl);
  align-items: center;
  padding: var(--s-2xl) 0;
}
.social-proof__left {
  padding-right: var(--s-xl);
}
.social-proof__badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
  color: #92400E;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--s-lg);
}
.social-proof__title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: var(--s-md);
  color: var(--c-text);
}
.social-proof__title span {
  color: var(--c-primary);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.social-proof__desc {
  font-size: 1.05rem;
  color: var(--c-text-secondary);
  margin-bottom: var(--s-xl);
  line-height: 1.7;
}
.social-proof__avatars {
  margin-bottom: var(--s-sm);
}
.social-proof__text {
  font-size: 0.9rem;
  color: var(--c-text-secondary);
}
.social-proof__text span {
  font-weight: 600;
  color: var(--c-primary);
}
.social-proof__right {
  display: flex;
  flex-direction: column;
  gap: var(--s-md);
}
.proof-card {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-lg);
  background: var(--c-card);
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  transition: all 0.3s ease;
}
.proof-card:hover {
  transform: translateX(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary-light);
}
.proof-card--highlight {
  background: linear-gradient(135deg, #FFF7ED 0%, #FEF3C7 100%);
  border-color: #FCD34D;
}
.proof-card__icon {
  font-size: 2rem;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.proof-card__content {
  flex: 1;
}
.proof-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
}
.proof-card__desc {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
}

/* --- Pain Points --- */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-lg);
  margin-bottom: var(--s-2xl);
}
.pain-card {
  background: var(--c-bg-dark-2);
  border-radius: var(--r-lg);
  padding: var(--s-xl);
  border: 1px solid rgba(255,255,255,0.08);
}
.pain-card__icon {
  font-size: 2rem;
  margin-bottom: var(--s-md);
}
.pain-card__title {
  font-size: 1.1rem;
  color: var(--c-text-white);
  margin-bottom: var(--s-sm);
}
.pain-card__desc {
  color: var(--c-text-light);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- Process Flow --- */
.process {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--s-md);
  position: relative;
}
.process::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 56px;
  right: 56px;
  height: 2px;
  background: var(--c-border);
}
.process__step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
}
.process__num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--c-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto var(--s-md);
}
.process__title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--s-xs);
}
.process__desc {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
}

/* --- FAQ Accordion --- */
.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  margin-bottom: var(--s-md);
  overflow: hidden;
  background: var(--c-white);
}
.faq-item__question {
  width: 100%;
  padding: var(--s-lg) var(--s-xl);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}
.faq-item__question:hover { background: var(--c-primary-50); }
.faq-item__arrow {
  font-size: 1.2rem;
  transition: transform 0.3s;
  color: var(--c-text-secondary);
}
.faq-item--open .faq-item__arrow { transform: rotate(180deg); }
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item--open .faq-item__answer { max-height: 500px; }
.faq-item__answer-inner {
  padding: 0 var(--s-xl) var(--s-lg);
  color: var(--c-text-secondary);
  line-height: 1.8;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary) 0%, #1E40AF 100%);
  border-radius: var(--r-xl);
  padding: var(--s-3xl) var(--s-2xl);
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}
.cta-banner__title {
  font-size: 1.75rem;
  color: white;
  margin-bottom: var(--s-md);
}
.cta-banner__desc {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: var(--s-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Footer --- */
.footer {
  background: var(--c-bg-dark);
  color: var(--c-text-light);
  padding: var(--s-3xl) 0 var(--s-xl);
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-2xl);
  margin-bottom: var(--s-2xl);
}
.footer__brand-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: var(--s-md);
}
.footer__title {
  color: var(--c-text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--s-lg);
}
.footer__link {
  display: block;
  color: var(--c-text-light);
  font-size: 0.9rem;
  padding: var(--s-xs) 0;
  transition: color 0.2s;
}
.footer__link:hover { color: var(--c-primary); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--s-xl);
  text-align: center;
  font-size: 0.85rem;
}

/* --- Knowledge Base Specific --- */
.search-bar {
  max-width: 600px;
  margin: 0 auto var(--s-2xl);
  position: relative;
}
.search-bar__input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3rem;
  border: 2px solid var(--c-border);
  border-radius: var(--r-full);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
  background: var(--c-white);
}
.search-bar__input:focus { border-color: var(--c-primary); }
.search-bar__icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-text-light);
  font-size: 1.1rem;
}

.tab-nav {
  display: flex;
  gap: var(--s-sm);
  margin-bottom: var(--s-xl);
  flex-wrap: wrap;
  justify-content: center;
}
.tab-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--r-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-text-secondary);
  border: 1px solid var(--c-border);
  background: var(--c-white);
  transition: all 0.2s;
}
.tab-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.tab-btn--active {
  background: var(--c-primary);
  color: white;
  border-color: var(--c-primary);
}

.article-card {
  background: var(--c-card);
  border-radius: var(--r-lg);
  padding: var(--s-xl);
  border: 1px solid var(--c-border-light);
  transition: all 0.3s;
}
.article-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-md);
}
.article-card__tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  background: var(--c-primary-50);
  color: var(--c-primary);
  border-radius: var(--r-full);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: var(--s-sm);
}
.article-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--s-sm);
  line-height: 1.4;
}
.article-card__excerpt {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--s-md);
}
.article-card__meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--c-text-light);
}

/* --- Cases Specific --- */
.case-card {
  background: var(--c-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-border-light);
  transition: all 0.3s;
  cursor: pointer;
}
.case-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.case-card__header {
  padding: var(--s-xl);
  border-bottom: 1px solid var(--c-border-light);
}
.case-card__tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--s-sm);
}
.case-card__tag--blue { background: var(--c-primary-light); color: var(--c-primary); }
.case-card__tag--green { background: var(--c-accent-light); color: var(--c-accent); }
.case-card__tag--red { background: var(--c-danger-light); color: var(--c-danger); }
.case-card__tag--yellow { background: var(--c-warning-light); color: var(--c-warning); }
.case-card__body { padding: var(--s-xl); }
.case-card__title { font-size: 1.1rem; margin-bottom: var(--s-sm); }
.case-card__desc { color: var(--c-text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* Case detail modal */
.case-detail {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--s-xl);
}
.case-detail--open { display: flex; }
.case-detail__inner {
  background: var(--c-white);
  border-radius: var(--r-xl);
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: var(--s-2xl);
  position: relative;
}
.case-detail__close {
  position: absolute;
  top: var(--s-lg);
  right: var(--s-lg);
  font-size: 1.5rem;
  color: var(--c-text-secondary);
  padding: 4px;
}

/* --- Contact Specific --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2xl);
  align-items: start;
}
.contact-card {
  background: var(--c-card);
  border-radius: var(--r-xl);
  padding: var(--s-2xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--c-border-light);
}
.contact-card__qr {
  width: 200px;
  height: 200px;
  background: var(--c-border-light);
  border-radius: var(--r-md);
  margin: var(--s-lg) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-light);
  font-size: 0.85rem;
}
.contact-card__wechat {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-accent);
  font-family: var(--ff-heading);
}
.promise-list {
  display: grid;
  gap: var(--s-md);
}
.promise-item {
  display: flex;
  align-items: flex-start;
  gap: var(--s-md);
  padding: var(--s-lg);
  background: var(--c-primary-50);
  border-radius: var(--r-md);
}
.promise-item__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}
.promise-item__text h4 { font-size: 1rem; margin-bottom: 2px; }
.promise-item__text p { color: var(--c-text-secondary); font-size: 0.9rem; margin-bottom: 0; }

/* --- Service Detail Blocks --- */
.service-block {
  padding: var(--s-2xl) 0;
  border-bottom: 1px solid var(--c-border-light);
}
.service-block:last-child { border-bottom: none; }
.service-block__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2xl);
  align-items: center;
}
.service-block__tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--c-primary-50);
  color: var(--c-primary);
  border-radius: var(--r-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--s-md);
}
.service-block__list {
  display: grid;
  gap: var(--s-sm);
}
.service-block__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--s-sm);
  font-size: 0.95rem;
  color: var(--c-text-secondary);
}
.service-block__list li::before {
  content: '✓';
  color: var(--c-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Pricing Cards --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-xl);
  align-items: start;
}
.pricing-card {
  background: var(--c-card);
  border-radius: var(--r-xl);
  border: 1px solid var(--c-border-light);
  overflow: hidden;
  transition: all 0.3s;
  position: relative;
}
.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.pricing-card--featured {
  border: 2px solid var(--c-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
  z-index: 1;
}
.pricing-card--featured:hover { transform: scale(1.03) translateY(-4px); }
.pricing-card__ribbon {
  position: absolute;
  top: 12px;
  right: -32px;
  background: var(--c-accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 40px;
  transform: rotate(45deg);
  z-index: 2;
}
.pricing-card__header {
  padding: var(--s-xl) var(--s-xl) var(--s-lg);
  text-align: center;
  border-bottom: 1px solid var(--c-border-light);
}
.pricing-card__badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--c-primary-50);
  color: var(--c-primary);
  margin-bottom: var(--s-sm);
}
.pricing-card__badge--accent { background: var(--c-accent-light); color: var(--c-accent); }
.pricing-card__badge--gold { background: var(--c-warning-light); color: var(--c-warning); }
.pricing-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: var(--s-md);
  line-height: 1.4;
}
.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}
.pricing-card__currency {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--c-primary);
}
.pricing-card__amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1;
}
.pricing-card--featured .pricing-card__currency,
.pricing-card--featured .pricing-card__amount { color: var(--c-accent); }
.pricing-card__unit {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  margin-left: 4px;
}
.pricing-card__body { padding: var(--s-xl); }
.pricing-card__desc {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--s-lg);
}
.pricing-card__features {
  display: grid;
  gap: var(--s-sm);
  margin-bottom: var(--s-lg);
}
.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--s-sm);
  font-size: 0.88rem;
  color: var(--c-text-secondary);
  line-height: 1.5;
}
.pricing-card__features li::before {
  content: '✓';
  color: var(--c-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.pricing-card__process {
  display: flex;
  gap: var(--s-sm);
  justify-content: center;
  margin-top: var(--s-md);
}
.pricing-card__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.75rem;
  color: var(--c-text-secondary);
  gap: 4px;
}
.pricing-card__step span {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--c-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
}
.pricing-card__footer {
  padding: 0 var(--s-xl) var(--s-xl);
}
.pricing-note {
  text-align: center;
  color: var(--c-text-light);
  font-size: 0.85rem;
  margin-top: var(--s-xl);
}

/* --- Button Variants --- */
.btn--outline {
  background: transparent;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
}
.btn--outline:hover {
  background: var(--c-primary);
  color: white;
}
.btn--block { width: 100%; text-align: center; }

/* --- Order Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-xl);
  overflow-y: auto;
  animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.modal {
  background: var(--c-white);
  border-radius: var(--r-xl);
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 0;
  position: relative;
  box-shadow: var(--shadow-xl), 0 0 40px rgba(37,99,235,0.1);
  animation: slideUp 0.3s ease-out;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal__close {
  position: absolute;
  top: var(--s-md);
  right: var(--s-md);
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  color: var(--c-text-light);
  cursor: pointer;
  background: var(--c-bg);
  border: none;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 10;
}
.modal__close:hover {
  color: var(--c-text);
  background: var(--c-border-light);
}

/* Modal Steps */
.modal__steps {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-xl) var(--s-xl) var(--s-lg);
  gap: var(--s-sm);
  border-bottom: 1px solid var(--c-border-light);
}
.modal__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.modal__step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-bg);
  color: var(--c-text-light);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}
.modal__step--active .modal__step-num {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}
.modal__step-text {
  font-size: 0.75rem;
  color: var(--c-text-light);
  font-weight: 500;
}
.modal__step--active .modal__step-text {
  color: var(--c-primary);
}
.modal__step-line {
  width: 24px;
  height: 2px;
  background: var(--c-border);
  margin-top: 15px;
}
.modal__step--active ~ .modal__step-line {
  background: var(--c-primary);
}

/* Modal Content */
.modal__content {
  padding: var(--s-xl);
}

/* Modal Header */
.modal__header {
  text-align: center;
  margin-bottom: var(--s-xl);
}
.modal__icon-wrapper {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--s-lg);
  background: linear-gradient(135deg, var(--c-primary-light), var(--c-primary-50));
  border-radius: var(--r-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal__icon {
  width: 32px;
  height: 32px;
  color: var(--c-primary);
}
.modal__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--s-xs);
}
.modal__subtitle {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Order Card */
.order-card {
  background: var(--c-bg);
  border-radius: var(--r-lg);
  margin-bottom: var(--s-lg);
  overflow: hidden;
  border: 1px solid var(--c-border-light);
}
.order-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-md) var(--s-lg);
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border-light);
}
.order-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
}
.order-card__required {
  font-size: 0.75rem;
  color: var(--c-danger);
  font-weight: 500;
}
.order-card__body {
  padding: var(--s-lg);
}

/* Form Styles */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-lg);
  margin-bottom: var(--s-lg);
}
.form-row:last-child {
  margin-bottom: 0;
}
.form-group {
  margin-bottom: var(--s-lg);
}
.form-group:last-child {
  margin-bottom: 0;
}
.form-group--half {
  margin-bottom: 0;
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: var(--s-xs);
}
.form-required {
  color: var(--c-danger);
  margin-left: 2px;
}
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  font-size: 0.95rem;
  color: var(--c-text);
  background: var(--c-white);
  outline: none;
  transition: all 0.2s;
  box-sizing: border-box;
  font-family: inherit;
}
.form-input:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-input::placeholder {
  color: var(--c-text-light);
}
.form-input--readonly {
  background: var(--c-white);
  color: var(--c-text);
  font-weight: 600;
  cursor: default;
  border-color: var(--c-border-light);
}
.form-input--price {
  color: var(--c-primary);
  font-size: 1.1rem;
}
.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* VIP Discount Badge */
.vip-discount-badge {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  margin-top: var(--s-sm);
  padding: 0.6rem 0.8rem;
  background: linear-gradient(135deg, var(--c-accent-light), #ECFDF5);
  border-radius: var(--r-md);
  border: 1px solid var(--c-accent-light);
}
.vip-discount-badge__icon {
  font-size: 1.1rem;
}
.vip-discount-badge__text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-accent);
}
.vip-discount-badge__detail {
  font-size: 0.8rem;
  color: #047857;
  margin-left: auto;
}

/* Optional Services */
.optional-services {
  display: flex;
  flex-direction: column;
  gap: var(--s-md);
}
.optional-check {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  cursor: pointer;
  padding: 0.6rem;
  border-radius: var(--r-md);
  transition: background 0.2s;
}
.optional-check:hover {
  background: var(--c-white);
}
.optional-check input[type="checkbox"] {
  display: none;
}
.optional-check__box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--c-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.optional-check input:checked + .optional-check__box {
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.optional-check input:checked + .optional-check__box::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
}
.optional-check__text {
  font-size: 0.9rem;
  color: var(--c-text);
}
.optional-hint {
  margin-top: var(--s-sm);
  font-size: 0.8rem;
  color: var(--c-text-light);
}

/* Payment Options */
.payment-section {
  margin-bottom: 1.5rem;
}
.payment-options {
  display: flex;
  gap: var(--s-md);
}
.payment-option {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  padding: 1rem;
  border: 2px solid var(--c-border);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: all 0.2s;
  background: var(--c-white);
  position: relative;
}
.payment-option:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-50);
}
.payment-option:has(input:checked) {
  border-color: var(--c-primary);
  background: var(--c-primary-50);
}
.payment-option input[type="radio"] { display: none; }
.payment-option__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.payment-option__icon--wechat {
  background: #07C160;
  color: white;
}
.payment-option__icon--alipay {
  background: #1677FF;
  color: white;
}
.payment-option__text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-text);
}
.payment-option__check {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--c-border);
  display: none;
}
.payment-option:has(input:checked) .payment-option__check {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.payment-option:has(input:checked) .payment-option__check::after {
  content: '✓';
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
}

/* Order Form Layout */
.form-row {
  display: flex;
  gap: var(--s-md);
  margin-bottom: var(--s-md);
}
.form-group--half {
  flex: 1;
  min-width: 0;
}
.form-textarea {
  resize: vertical;
  min-height: 70px;
  font-family: inherit;
}

/* Order Card */
.order-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  margin-bottom: var(--s-lg);
  overflow: hidden;
}
.order-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-white);
}
.order-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-text);
}
.order-card__required {
  font-size: 0.75rem;
  color: var(--c-text-light);
}
.order-card__body {
  padding: 1rem 1.25rem;
}
.form-input--readonly {
  background: var(--c-bg);
  color: var(--c-text-secondary);
  cursor: default;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  font-size: 0.9rem;
}
.form-input--price {
  color: var(--c-primary);
  font-weight: 700;
  font-size: 1.1rem;
}
.form-required {
  color: #EF4444;
}

/* Optional Services Checkbox */
.optional-check {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  cursor: pointer;
  padding: 0.5rem 0;
}
.optional-check input[type="checkbox"] { display: none; }
.optional-check__box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--c-border);
  border-radius: var(--r-sm, 4px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.optional-check input:checked + .optional-check__box {
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.optional-check input:checked + .optional-check__box::after {
  content: '✓';
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
}
.optional-check__text {
  font-size: 0.9rem;
  color: var(--c-text);
}
.optional-hint {
  font-size: 0.8rem;
  color: var(--c-text-light);
  margin-top: 0.25rem;
}

/* VIP Discount Badge */
.vip-discount-badge {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  padding: 0.6rem 1rem;
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: var(--r-md);
  margin-top: var(--s-sm);
  font-size: 0.85rem;
}
.vip-discount-badge__icon { font-size: 1.1rem; }
.vip-discount-badge__text { font-weight: 600; color: #92400E; }
.vip-discount-badge__detail { color: #B45309; }

/* Modal Actions */
.modal__actions {
  margin-top: var(--s-xl);
}
.modal__tip {
  text-align: center;
  font-size: 0.78rem;
  color: var(--c-text-light);
  margin-top: var(--s-sm);
}

/* --- Page Header --- */
.page-header {
  padding-top: calc(var(--nav-h) + var(--s-3xl));
  padding-bottom: var(--s-2xl);
  text-align: center;
  background: linear-gradient(180deg, var(--c-white) 0%, var(--c-primary-50) 100%);
}
.page-header h1 { margin-bottom: var(--s-md); }
.page-header p { color: var(--c-text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* --- Contact V2 (Two-Column) --- */
.contact-v2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2xl);
  align-items: start;
}
.contact-v2__info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--s-md);
}
.contact-v2__info-desc {
  color: var(--c-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--s-xl);
}
.contact-v2__highlight {
  color: var(--c-accent);
  font-weight: 700;
}
.contact-v2__checklist {
  display: grid;
  gap: 12px;
  margin-bottom: var(--s-xl);
}
.contact-v2__check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.93rem;
  color: var(--c-text-secondary);
}
.contact-v2__check-icon {
  color: var(--c-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.contact-v2__info-subtitle {
  font-size: 1.1rem;
  margin-top: var(--s-2xl);
  margin-bottom: var(--s-lg);
}
.contact-v2__method {
  display: flex;
  gap: var(--s-md);
  align-items: flex-start;
  margin-bottom: var(--s-lg);
}
.contact-v2__method-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--c-primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.contact-v2__method h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-v2__method p {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  line-height: 1.5;
}

/* Contact Form Card */
.contact-v2__form-card {
  background: var(--c-card);
  border-radius: var(--r-xl);
  padding: var(--s-2xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border-light);
}
.contact-v2__form-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--s-xs);
}
.contact-v2__form-sub {
  font-size: 0.88rem;
  color: var(--c-text-light);
  margin-bottom: var(--s-xl);
}
.contact-v2__field {
  margin-bottom: var(--s-lg);
}
.contact-v2__field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: var(--s-xs);
}
.contact-v2__form-hint {
  font-size: 0.78rem;
  color: var(--c-text-light);
  text-align: center;
  margin-top: var(--s-md);
}
.contact-v2__form-success {
  text-align: center;
  padding: var(--s-2xl) 0;
}
.contact-v2__success-icon {
  font-size: 3rem;
  margin-bottom: var(--s-lg);
}
.contact-v2__form-success h3 {
  font-size: 1.3rem;
  margin-bottom: var(--s-md);
}
.contact-v2__form-success p {
  color: var(--c-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* WeChat CTA */
.wechat-cta {
  text-align: center;
  background: linear-gradient(135deg, var(--c-bg-dark) 0%, var(--c-bg-dark-2) 100%);
  border-radius: var(--r-xl);
  padding: var(--s-3xl) var(--s-xl);
  color: var(--c-text-white);
}
.wechat-cta h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--s-md);
}
.wechat-cta p {
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.7;
}
.wechat-cta__id {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--c-accent);
  font-family: var(--ff-heading);
  margin: var(--s-lg) 0;
  padding: 0.5rem 2rem;
  background: rgba(5,150,105,0.15);
  border-radius: var(--r-md);
  border: 2px solid rgba(5,150,105,0.3);
}
.wechat-cta__sub {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-top: var(--s-sm);
}

/* Contact QR Code */
.contact-v2__qr {
  text-align: left;
  margin: 1.5rem 0;
  padding: 1.2rem;
  background: #f8fafc;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border-light);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.contact-v2__qr-img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: var(--r-md);
  margin-bottom: 0.8rem;
}
.contact-v2__qr-hint {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  font-weight: 500;
  margin: 0;
  margin-top: 0.3rem;
}

/* About Author */
.about-author__text {
  font-size: 1.05rem;
  color: var(--c-text-secondary);
  line-height: 1.8;
  margin-top: var(--s-md);
}
.about-author__note {
  font-size: 0.92rem;
  color: var(--c-text-light);
  margin-top: var(--s-lg);
  line-height: 1.7;
}

/* --- Payment Step (Order Modal) --- */
.pay-step {
  text-align: center;
  padding: var(--s-lg) 0;
}
.pay-step__success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--s-lg);
  background: linear-gradient(135deg, var(--c-accent-light), #ECFDF5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: scaleIn 0.4s ease-out;
}
@keyframes scaleIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.pay-step__success-icon svg {
  width: 36px;
  height: 36px;
  color: var(--c-accent);
}
.pay-step__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--s-xs);
}
.pay-step__subtitle {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--s-xl);
}

.pay-step__info-row {
  display: flex;
  justify-content: center;
  gap: var(--s-xl);
  margin-bottom: var(--s-lg);
}
.pay-step__info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--s-md) var(--s-lg);
  background: var(--c-bg);
  border-radius: var(--r-md);
  min-width: 140px;
}
.pay-step__info-label {
  font-size: 0.78rem;
  color: var(--c-text-light);
}
.pay-step__info-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
}
.pay-step__info-value--price {
  color: var(--c-primary);
  font-size: 1.2rem;
}

.pay-step__order-no {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  padding: var(--s-sm) var(--s-md);
  background: var(--c-bg);
  border-radius: var(--r-full);
  margin-bottom: var(--s-xl);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.pay-step__order-no-label {
  font-size: 0.8rem;
  color: var(--c-text-light);
}
.pay-step__order-no-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-text);
  font-family: var(--ff-mono);
}

.pay-step__qr-container {
  margin-bottom: var(--s-xl);
}
.pay-step__qr-wrap {
  position: relative;
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  border: 2px dashed var(--c-border);
  display: inline-block;
  margin-bottom: var(--s-md);
}
.pay-step__qr-img {
  width: 220px;
  height: 220px;
  object-fit: contain;
  border-radius: var(--r-md);
}
.pay-step__qr-loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.9);
  gap: var(--s-sm);
}
.pay-step__qr-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.pay-step__qr-loader span {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
}
.pay-step__qr-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
}

.pay-step__tips {
  background: var(--c-bg);
  border-radius: var(--r-md);
  padding: var(--s-lg);
  margin-bottom: var(--s-xl);
  text-align: left;
}
.pay-step__tip {
  display: flex;
  align-items: flex-start;
  gap: var(--s-sm);
  padding: var(--s-sm) 0;
  font-size: 0.88rem;
  color: var(--c-text-secondary);
}
.pay-step__tip:first-child {
  padding-top: 0;
}
.pay-step__tip:last-child {
  padding-bottom: 0;
}
.pay-step__tip-icon {
  font-size: 1rem;
  flex-shrink: 0;
}
.pay-step__actions {
  display: flex;
  flex-direction: column;
  gap: var(--s-md);
}

/* --- Order Success --- */
.order-success {
  text-align: center;
  padding: var(--s-xl) 0;
}
.order-success__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--s-lg);
  background: linear-gradient(135deg, var(--c-accent-light), #ECFDF5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: scaleIn 0.4s ease-out;
}
.order-success__icon svg {
  width: 40px;
  height: 40px;
  color: var(--c-accent);
}
.order-success__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--s-xs);
}
.order-success__subtitle {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--s-xl);
}

.order-success__order {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  padding: var(--s-md) var(--s-lg);
  background: var(--c-bg);
  border-radius: var(--r-md);
  margin-bottom: var(--s-xl);
}
.order-success__order-label {
  font-size: 0.85rem;
  color: var(--c-text-light);
}
.order-success__order-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-primary);
  font-family: var(--ff-mono);
}

.order-success__tips {
  background: var(--c-bg);
  border-radius: var(--r-md);
  padding: var(--s-lg);
  margin-bottom: var(--s-xl);
  text-align: left;
}
.order-success__tips p {
  font-size: 0.88rem;
  color: var(--c-text-secondary);
  margin-bottom: var(--s-sm);
}
.order-success__tips p:last-child {
  margin-bottom: 0;
}

.order-success__actions {
  display: flex;
  gap: var(--s-md);
  justify-content: center;
}
.order-success__actions .btn {
  min-width: 140px;
}

/* --- Optional Services (Order Modal) --- */
.optional-services {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.3rem;
}
.optional-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--c-text);
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  transition: all 0.2s;
}
.optional-check:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-50);
}
.optional-check:has(input:checked) {
  border-color: var(--c-accent);
  background: var(--c-accent-light);
}
.optional-check input[type="checkbox"] {
  accent-color: var(--c-accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.optional-hint {
  font-size: 0.78rem;
  color: var(--c-text-light);
  margin-top: 0.4rem;
  margin-bottom: 0;
}
.order-success__order-no {
  font-size: 0.9rem;
  color: var(--c-text-secondary);
  margin-bottom: 0.5rem;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .service-block__grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-v2 { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .pricing-card--featured {
    grid-column: 1 / -1;
    transform: none;
    order: -1;
  }
  .pricing-card--featured:hover { transform: translateY(-4px); }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .nav__links--open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--c-white);
    padding: 1.5rem;
    gap: var(--s-lg);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    animation: slideDown 0.3s ease;
  }
  .nav__links--open .nav__link {
    font-size: 1.05rem;
    padding: 0.5rem 0;
  }
  .nav__links--open .nav__cta {
    margin-top: 0.5rem;
    text-align: center;
  }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card--featured { transform: none; }
  .pricing-card--featured:hover { transform: translateY(-4px); }
  .modal { margin: 1rem; }
  .modal__content { padding: var(--s-lg); }
  .modal__steps { padding: var(--s-lg) var(--s-lg) var(--s-md); }
  .form-row { grid-template-columns: 1fr; }
  .payment-options { flex-direction: column; }
  .stats { grid-template-columns: 1fr; gap: var(--s-sm); }
  .social-proof { grid-template-columns: 1fr; gap: var(--s-xl); }
  .social-proof__left { padding-right: 0; text-align: center; }
  .social-proof__avatars { margin: 0 auto var(--s-sm); }
  .pain-grid { grid-template-columns: 1fr; }

  /* Mobile process flow - vertical timeline */
  .process {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 40px;
  }
  .process::before {
    top: 0;
    bottom: 0;
    left: 27px;
    right: auto;
    width: 2px;
    height: 100%;
  }
  .process__step {
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    width: 100%;
    position: relative;
  }
  .process__num {
    position: absolute;
    left: -40px;
    margin: 0;
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .footer__inner { grid-template-columns: 1fr; gap: var(--s-xl); }

  .hero__title { font-size: 1.75rem; }
  .hero__actions { flex-direction: column; align-items: center; }

  /* Hero mobile */
  .hero__badge { font-size: 0.8rem; padding: 0.3rem 0.8rem; }
  .hero__subtitle { font-size: 1rem; }

  /* Stats mobile */
  .stat { padding: 1rem 0.5rem; }
  .stat__number { font-size: 2rem; }

  /* CTA Banner mobile */
  .cta-banner { padding: 2rem 1.5rem; }
  .cta-banner__title { font-size: 1.3rem; }

  /* Service blocks mobile */
  .service-block__grid { gap: 1.5rem; }
  .service-block__list li { font-size: 0.9rem; }

  /* Contact mobile */
  .contact-card { padding: 1.5rem; }
  .contact-card__qr { width: 160px; height: 160px; }

  /* Cards mobile - reduce padding */
  .card { padding: 1.25rem; }
  .article-card { padding: 1.25rem; }
  .case-card__header, .case-card__body { padding: 1.25rem; }
}

/* Mobile nav slide-down animation */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}