/* ============================================================
   Puwei Design System v5
   Apple-inspired · Light · Refined · Spacious
   ============================================================ */

/* ----- Design Tokens ----- */
:root {
  --ink: #1d1d1f;
  --ink-secondary: #424245;
  --gray: #6e6e73;
  --gray-light: #86868b;
  --gray-lighter: #d2d2d7;
  --border: #e8e8ed;
  --border-light: #f5f5f7;
  --bg: #f5f5f7;
  --white: #fff;
  --black: #1d1d1f;

  --primary: #0071e3;
  --primary-hover: #0077ed;
  --primary-subtle: rgba(0, 113, 227, 0.04);
  --primary-glow: rgba(0, 113, 227, 0.12);

  --success: #30d158;
  --success-bg: #f0fdf4;
  --error: #ff453a;
  --error-bg: #fff5f5;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Noto Sans SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --glass-blur: saturate(180%) blur(20px);

  --nav-h: 52px;
  --container: 1080px;
  --space: 20px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-card: 0 2px 8px rgba(0,0,0,.04), 0 0 1px rgba(0,0,0,.08);
  --shadow-elevated: 0 4px 16px rgba(0,0,0,.06), 0 0 1px rgba(0,0,0,.08);
  --transition: all .3s cubic-bezier(.25,.1,.25,1);
  --transition-fast: all .2s cubic-bezier(.25,.1,.25,1);
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0 }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth }
body { font-family: var(--font); color: var(--ink); background: var(--white); line-height: 1.6; overflow-x: hidden }
img { max-width: 100%; height: auto; display: block }
a { color: var(--primary); text-decoration: none; transition: var(--transition-fast) }
a:hover { color: var(--primary-hover); text-decoration: underline; text-underline-offset: 3px }
::selection { background: var(--primary-glow) }

/* ----- Typography ----- */
h1 { font-size: 48px; font-weight: 700; line-height: 1.1; letter-spacing: -.02em; color: var(--ink) }
h2 { font-size: 36px; font-weight: 700; line-height: 1.15; letter-spacing: -.02em }
h3 { font-size: 21px; font-weight: 600; line-height: 1.35 }
h4 { font-size: 17px; font-weight: 600; line-height: 1.45 }
p { font-size: 17px; line-height: 1.65; color: var(--ink-secondary) }

.section-eyebrow {
  font-size: 14px; font-weight: 600; color: var(--gray-light);
  letter-spacing: -.01em; margin-bottom: 8px;
}
.section-title {
  font-size: 48px; font-weight: 700; line-height: 1.08;
  color: var(--ink); letter-spacing: -.03em;
}
.section-title-light { color: var(--white) }
.section-title-margin { margin-bottom: 16px }
.section-desc {
  font-size: 17px; line-height: 1.6; color: var(--gray); max-width: 600px;
  font-weight: 400; letter-spacing: -.01em;
}
.section-desc-wide { max-width: none }
.section-header { margin-bottom: 56px }
.section-header.text-center { text-align: center }
.section-header.text-center .section-desc { margin: 0 auto }

/* ----- Layout ----- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space) }
.section { padding: 100px 0 }
.bg-light { background: var(--bg) }
.bg-dark { background: var(--black); color: var(--white) }
.bg-dark .section-title, .bg-dark h2, .bg-dark h3 { color: var(--white) }
.bg-dark p { color: var(--gray-light) }
.bg-dark .section-eyebrow { color: var(--gray-light) }

.row { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px }
.row-centered { align-items: center }
.col-4 { grid-column: span 4 }
.col-6 { grid-column: span 6 }

/* ----- Navbar — Apple Global Nav ----- */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.82);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(0,0,0,.08);
}

.navbar { height: var(--nav-h); display: flex; align-items: center }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; width: 100% }
.navbar-brand { display: flex; align-items: center; flex-shrink: 0 }
.navbar-brand img { height: 32px; width: auto; opacity: .9; transition: var(--transition-fast) }
.navbar-brand:hover img { opacity: 1 }
.brand-text { font-size: 15px; font-weight: 600; color: var(--ink); letter-spacing: -.01em; margin-left: 8px; white-space: nowrap }

.navbar-menu { display: flex; align-items: center; gap: 0; list-style: none }
.navbar-menu > a, .navbar-menu > .has-dropdown > a {
  font-size: 12px; font-weight: 400; color: var(--ink);
  padding: 8px 12px; border-radius: 980px;
  transition: var(--transition-fast); white-space: nowrap;
  letter-spacing: -.01em; text-decoration: none;
  opacity: .8;
}
.navbar-menu > a:hover, .navbar-menu > .has-dropdown > a:hover {
  opacity: 1; background: rgba(0,0,0,.04); text-decoration: none;
}
.navbar-menu > a.active, .navbar-menu > .has-dropdown > a.active {
  opacity: 1; font-weight: 500;
}

.has-dropdown { position: relative }
.has-dropdown::after {
  content: ''; position: absolute; top: 100%; left: 0; right: 0;
  height: 8px;
}
.dropdown-menu {
  display: none; position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  background: rgba(255,255,255,.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 14px; padding: 6px;
  min-width: 200px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08), 0 0 0 .5px rgba(0,0,0,.06);
  z-index: 100;
}
.has-dropdown:hover .dropdown-menu { display: block }
.dropdown-menu a {
  display: block; padding: 8px 14px; font-size: 13px; color: var(--ink-secondary);
  border-radius: 8px; transition: var(--transition-fast);
  text-decoration: none; letter-spacing: -.01em;
}
.dropdown-menu a:hover { background: rgba(0,0,0,.04); color: var(--ink); text-decoration: none }

.navbar-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; border-radius: 8px;
  position: relative; z-index: 1010;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.navbar-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); border-radius: 1px; transition: .3s }
.navbar-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px) }
.navbar-toggle.open span:nth-child(2) { opacity: 0 }
.navbar-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px) }

/* ----- Language Switcher ----- */
.lang-flag { display: inline-flex; width: 18px; height: 12px; border-radius: 2px; overflow: hidden; vertical-align: -1px; margin-right: 5px; flex-shrink: 0 }
.lang-flag svg { width: 100%; height: 100%; display: block }
.lang-switch > a::after { content: '▾'; font-size: 10px; margin-left: 3px }
.lang-switch .dropdown-menu { min-width: 110px; right: 0; left: auto; transform: none }
.lang-switch .dropdown-menu a { display: flex; align-items: center; gap: 6px }
.lang-switch .dropdown-menu a.active { color: var(--primary); font-weight: 500 }

/* ----- Hero — Apple Style ----- */
.hero-dark {
  background: var(--black);
  text-align: center;
  padding: 120px var(--space) 100px;
  min-height: 580px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.hero-dark::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0,113,227,.08) 0%, transparent 70%);
}
.hero-dark .hero-content { max-width: 720px; position: relative; z-index: 1 }
.hero-dark .hero-eyebrow {
  font-size: 17px; font-weight: 600; color: var(--gray-light);
  margin-bottom: 16px; letter-spacing: -.01em;
}
.hero-dark h1 {
  color: var(--white); font-size: 56px; font-weight: 700;
  margin-bottom: 16px; letter-spacing: -.03em; line-height: 1.07;
}
.hero-dark p {
  color: var(--gray-light); font-size: 21px; line-height: 1.5;
  margin-bottom: 32px; max-width: 540px; margin-left: auto; margin-right: auto;
  letter-spacing: -.01em; font-weight: 400;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center }
.hero-trust { display: flex; gap: 20px; justify-content: center; margin-bottom: 28px; flex-wrap: wrap }
.hero-trust-item {
  font-size: 12px; font-weight: 500; color: var(--gray-light);
  letter-spacing: .04em; text-transform: uppercase;
  padding: 5px 14px; border: 1px solid rgba(255,255,255,.12);
  border-radius: 980px;
}

/* ----- Page Hero (Inner) ----- */
.page-hero {
  background: var(--bg);
  padding: 60px var(--space) 48px;
  border-bottom: 1px solid var(--border);
}
.page-hero .container { max-width: var(--container) }
.page-hero h1 { font-size: 40px; margin-bottom: 8px; text-align: center; color: var(--ink) }
.page-hero p { font-size: 17px; color: var(--gray); text-align: center; max-width: 540px; margin: 0 auto }
.page-hero .breadcrumb { font-size: 13px; color: var(--gray-light); margin-bottom: 12px; text-align: center }
.page-hero .breadcrumb a { color: var(--gray); text-decoration: none }
.page-hero .breadcrumb a:hover { color: var(--primary); text-decoration: underline }

/* ----- Buttons — Apple Style ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font); font-size: 17px; font-weight: 400;
  padding: 12px 28px; border-radius: 980px; border: none; cursor: pointer;
  transition: var(--transition); text-decoration: none; gap: 6px;
  letter-spacing: -.01em;
}
.btn:hover { text-decoration: none }
.btn-primary {
  background: var(--white); color: var(--ink);
  box-shadow: 0 1px 3px rgba(0,0,0,.1), inset 0 0 0 1px rgba(0,0,0,.06);
}
.btn-primary:hover { background: var(--bg); box-shadow: 0 2px 8px rgba(0,0,0,.12), inset 0 0 0 1px rgba(0,0,0,.08) }
.btn-white {
  background: transparent; color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-white:hover { background: var(--primary); color: var(--white); text-decoration: none }
.btn-accent {
  background: var(--primary); color: var(--white);
}
.btn-accent:hover { background: var(--primary-hover); text-decoration: none }
.btn-lg { padding: 14px 32px; font-size: 17px }
.btn-full { width: 100% }
.btn-link {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 17px; font-weight: 400; color: var(--primary);
  background: none; border: none; cursor: pointer; padding: 0;
  transition: var(--transition-fast); letter-spacing: -.01em;
}
.btn-link::after { content: '\203A'; font-size: 20px; line-height: 1; transition: transform .2s }
.btn-link:hover { text-decoration: none }
.btn-link:hover::after { transform: translateX(2px) }

/* ----- Cards — Apple Tile ----- */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.card:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-2px);
}
.card-body { padding: 0 }
.card-num {
  font-size: 56px; font-weight: 700; line-height: 1;
  color: var(--border); position: absolute; top: 24px; right: 28px;
}
.card-title { font-size: 22px; font-weight: 600; margin-bottom: 8px; color: var(--ink); letter-spacing: -.02em }
.card-desc { font-size: 15px; color: var(--gray); margin-bottom: 20px; line-height: 1.55 }
.card-link {
  font-size: 15px; font-weight: 400; color: var(--primary);
  display: inline-flex; align-items: center; gap: 3px;
}
.card-link::after { content: '\203A'; font-size: 18px; line-height: 1 }
.card-link:hover { text-decoration: underline }

/* ----- Features ----- */
.features-list { display: flex; flex-direction: column; gap: 16px; margin-top: 24px }
.feature-item { display: flex; gap: 16px; align-items: flex-start }
.feature-icon {
  font-size: 12px; color: var(--white); flex-shrink: 0;
  width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
  background: var(--primary); border-radius: 50%; font-weight: 700;
}
.feature-title { font-size: 17px; font-weight: 600; margin-bottom: 2px; color: var(--ink); letter-spacing: -.01em }
.feature-desc { font-size: 14px; color: var(--gray); line-height: 1.5; margin: 0 }

/* ----- Stats — Apple Numbers ----- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center }
.stat-item { padding: 36px 16px; border-radius: var(--radius-lg); background: rgba(255,255,255,.06) }
.stat-number {
  font-size: 56px; font-weight: 700; line-height: 1; color: var(--white);
  margin-bottom: 8px; letter-spacing: -.04em;
}
.stat-plus { font-size: 28px }
.stat-label { font-size: 14px; font-weight: 500; color: var(--gray-light); letter-spacing: -.01em }

/* ----- Process ----- */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center }
.process-step {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px 24px; position: relative;
  box-shadow: var(--shadow-card); transition: var(--transition);
}
.process-step:hover { box-shadow: var(--shadow-elevated); transform: translateY(-2px) }
.process-step-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--bg); color: var(--ink);
  font-size: 20px; font-weight: 700; line-height: 48px;
  margin: 0 auto 20px;
}
.process-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--ink); letter-spacing: -.01em }
.process-step .feature-desc { font-size: 14px }

/* ----- Blog Grid ----- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px }
.blog-card .card { border-radius: var(--radius-lg); overflow: hidden; padding: 0; box-shadow: var(--shadow-card) }
.blog-card .card-body { padding: 24px }
.blog-card-img { aspect-ratio: 16/10; overflow: hidden; background: var(--bg) }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.25,.1,.25,1) }
.blog-card:hover .blog-card-img img { transform: scale(1.03) }
.blog-card:hover .card { box-shadow: var(--shadow-elevated) }
.blog-card-date { font-size: 12px; color: var(--gray-light); margin-bottom: 8px; font-weight: 500; letter-spacing: .02em }

/* ----- CTA — Apple Style ----- */
.cta-section {
  text-align: center; padding: 100px var(--space);
  background: var(--bg);
}
.cta-white { background: #fff }
.cta-section h2 { font-size: 48px; color: var(--ink); margin-bottom: 12px; letter-spacing: -.03em }
.cta-section p { font-size: 19px; color: var(--gray); margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto }

/* ----- Footer — Apple Footer ----- */
.footer { background: var(--bg); padding: 20px 0 24px; font-size: 12px; color: var(--gray-light); border-top: 1px solid var(--border) }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border) }
.footer-col h4 { font-size: 12px; font-weight: 600; color: var(--ink); margin-bottom: 10px }
.footer-col p, .footer-col a {
  font-size: 12px; color: var(--gray-light); line-height: 2;
  display: block; text-decoration: none; transition: var(--transition-fast);
}
.footer-col a:hover { color: var(--ink); text-decoration: underline }
.footer-desc { line-height: 1.8; max-width: 340px }
.footer-address { line-height: 2; white-space: pre-line }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px;
}
.footer-bottom span, .footer-bottom a { color: var(--gray-light) }
.footer-bottom a:hover { color: var(--ink); text-decoration: underline }

/* ----- Back to Top ----- */
.back-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--white); color: var(--gray);
  border: 1px solid var(--border); cursor: pointer; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: var(--transition);
  box-shadow: var(--shadow-card);
}
.back-top.visible { opacity: 1; visibility: visible }
.back-top:hover { background: var(--ink); color: var(--white); border-color: var(--ink) }

/* ----- Article List ----- */
.article-list { padding: 48px 0 72px }
.article-list .container { max-width: 780px }
.article-list-item {
  display: flex; align-items: center; gap: 20px;
  padding: 16px 0; border-bottom: 1px solid var(--border);
  text-decoration: none; color: var(--ink); transition: var(--transition-fast);
}
.article-list-item:hover { color: var(--primary); text-decoration: none }
.article-list-item:hover .article-list-title { color: var(--primary) }
.article-list-date { font-size: 13px; color: var(--gray-light); white-space: nowrap; min-width: 80px }
.article-list-title { font-size: 17px; color: var(--ink); flex: 1; transition: var(--transition-fast); font-weight: 400; letter-spacing: -.01em }
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 40px }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; padding: 0 10px; border-radius: 8px;
  font-size: 14px; text-decoration: none; color: var(--gray);
  transition: var(--transition-fast); font-weight: 400;
}
.pagination a:hover { background: var(--bg); color: var(--ink); text-decoration: none }
.pagination .current { background: var(--ink); color: var(--white); font-weight: 600 }

/* ----- Article Detail ----- */
.article-detail { max-width: 740px; margin: 0 auto; padding: 56px var(--space) 72px }
.article-detail header { text-align: center; margin-bottom: 40px; padding-bottom: 28px; border-bottom: 1px solid var(--border) }
.article-detail header h1 { font-size: 36px; margin-bottom: 12px }
.article-meta { font-size: 13px; color: var(--gray-light); display: flex; gap: 16px; justify-content: center }
.article-body { font-size: 17px; line-height: 1.8; color: var(--ink-secondary) }
.article-body h2 { font-size: 24px; margin: 40px 0 14px; color: var(--ink) }
.article-body h3 { font-size: 20px; margin: 28px 0 10px; color: var(--ink) }
.article-body p { margin-bottom: 16px }
.article-body img { max-width: 100%; border-radius: var(--radius); margin: 20px 0 }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 16px }
.article-body li { margin-bottom: 4px; line-height: 1.75 }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px }
.article-body td, .article-body th { border: 1px solid var(--border); padding: 10px 14px; text-align: left }
.article-body th { background: var(--bg); font-weight: 600 }

/* ----- Static Page ----- */
.page-content { max-width: 740px; margin: 0 auto; padding: 56px var(--space) 72px }
.page-content h1 { text-align: center; margin-bottom: 36px; font-size: 36px }

/* ----- Contact ----- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start }
.contact-info h3 { font-size: 28px; margin-bottom: 20px; font-weight: 700; letter-spacing: -.02em }
.contact-info-list { list-style: none }
.contact-info-list li {
  display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border);
  font-size: 15px; color: var(--ink-secondary);
}
.contact-info-list .ci-label { color: var(--gray-light); min-width: 50px; font-weight: 500 }
.trust-badges { display: flex; gap: 10px; margin-top: 28px; flex-wrap: wrap }
.trust-badge {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500; color: var(--gray);
  padding: 8px 14px; background: var(--bg); border-radius: 980px;
}
.trust-badge .badge-icon { font-size: 12px; color: var(--primary); font-weight: 700 }

.contact-form {
  background: var(--bg); padding: 32px; border-radius: var(--radius-lg);
}
.contact-form .form-group { margin-bottom: 16px }
.contact-form label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--ink) }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 10px 14px; font-family: var(--font);
  font-size: 15px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--white); transition: var(--transition-fast); outline: none; color: var(--ink);
}
.contact-form input:focus, .contact-form textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow);
}
.contact-form textarea { resize: vertical; min-height: 110px }

.service-check-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
}
.service-check {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 10px;
  cursor: pointer; font-size: 13px; font-weight: 400; color: var(--gray);
  background: var(--white); transition: var(--transition-fast); user-select: none;
}
.service-check input[type="checkbox"] { accent-color: var(--primary); width: auto; margin: 0 }
.service-check.checked {
  background: var(--primary-subtle); border-color: var(--primary);
  color: var(--primary); font-weight: 500;
}

.form-message { margin-top: 12px; padding: 12px 14px; border-radius: 10px; font-size: 14px; display: none }
.form-message.success { display: block; background: var(--success-bg); color: #166534; border: 1px solid #bbf7d0 }
.form-message.error { display: block; background: var(--error-bg); color: #991b1b; border: 1px solid #fecaca }

.form-success { text-align: center; padding: 40px 20px }
.form-success h3 { color: #166534; margin-bottom: 8px }
.form-success p { color: var(--gray) }

.honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden }

/* ----- Lead Form ----- */
.lead-form-wrap { max-width: 640px; margin: 0 auto }
.lead-form-wrap .contact-form { background: var(--white); padding: 32px; border-radius: var(--radius-lg); box-shadow: var(--shadow-card) }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr } }

/* ----- Qualification Icons ----- */
.qual-icon {
  font-size: 44px; line-height: 1; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  width: 72px; height: 72px; border-radius: 20px;
  background: var(--bg);
}

/* ----- Platform Compliance ----- */
.platform-icon {
  font-size: 32px; line-height: 1; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--bg);
}

/* ----- About Image ----- */
.about-img { border-radius: var(--radius-xl); width: 100% }

/* ----- Empty State ----- */
.empty-state { text-align: center; padding: 72px 0 }
.empty-state .empty-icon { font-size: 40px; margin-bottom: 12px; opacity: .15 }
.empty-state p { font-size: 17px; color: var(--gray-light); margin-bottom: 12px }

/* ----- Animations ----- */
.animate-in { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .7s cubic-bezier(.25,.1,.25,1) }
.animate-in.visible { opacity: 1; transform: translateY(0) }
.delay-1 { transition-delay: .1s } .delay-2 { transition-delay: .2s }
.delay-3 { transition-delay: .3s } .delay-4 { transition-delay: .4s }

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .container { max-width: 100% }
  .footer-grid { grid-template-columns: 1fr 1fr }
  .process-grid { grid-template-columns: repeat(2, 1fr) }
  .stats-grid { grid-template-columns: repeat(2, 1fr) }
}

@media (max-width: 768px) {
  :root { --space: 16px; --nav-h: 56px }
  h1 { font-size: 32px }
  .section-title, h2 { font-size: 28px }
  h3 { font-size: 19px }
  .hero-dark h1 { font-size: 36px }
  .hero-dark p { font-size: 17px }
  .section { padding: 64px 0 }
  .brand-text { display: none }

  .row, .footer-grid, .blog-grid, .contact-grid { grid-template-columns: 1fr }
  .stats-grid { grid-template-columns: repeat(2, 1fr) }
  .process-grid { grid-template-columns: 1fr 1fr }
  .col-6, .col-4 { grid-column: span 1 }

  .has-dropdown::after { display: none }
  .navbar-menu {
    display: none; position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    height: calc(100vh - var(--nav-h));
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column; padding: 16px; gap: 4px;
    z-index: 1001; overflow-y: auto;
  }
  .navbar-menu.open { display: flex ; align-items:flex-start}
  .navbar-menu > a, .navbar-menu > .has-dropdown > a {
    font-size: 17px; padding: 16px; border-radius: 12px;
    opacity: 1; font-weight: 500; display: flex; align-items: center;
    text-align: left; justify-content: flex-start;
  }
  .navbar-menu > a:hover, .navbar-menu > .has-dropdown > a:hover {
    background: rgba(0,0,0,.04); text-decoration: none;
  }
  .navbar-toggle { display: flex; align-items: center; justify-content: center }
  .dropdown-menu {
    position: static; box-shadow: none; border: none;
    padding: 0 0 0 16px; margin: 0; transform: none;
    background: none; backdrop-filter: none; border-radius: 0;
  }
  .dropdown-menu a { padding: 14px 16px; font-size: 15px; color: var(--gray); border-radius: 10px }
  .dropdown-menu a:hover { color: var(--ink); background: rgba(0,0,0,.04) }
  .has-dropdown:hover .dropdown-menu { display: none }
  .has-dropdown.open .dropdown-menu { display: block }
  .has-dropdown.open > a { color: var(--primary) }
  .lang-switch .dropdown-menu { min-width: auto; right: auto; left: auto; transform: none; display: flex !important; flex-wrap: wrap; gap: 4px; padding: 8px 0 0 16px }
  .lang-switch .dropdown-menu a { padding: 8px 14px; border: 1px solid var(--border); border-radius: 980px; font-size: 14px }
  .lang-switch > a { pointer-events: none }

  .article-list-item { flex-direction: column; gap: 4px; padding: 14px 0 }
  .article-list-date { min-width: auto }
  .article-detail header h1, .page-content h1 { font-size: 28px }
  .card { padding: 24px }
  .card-num { font-size: 40px; top: 16px; right: 16px }
  .stat-number { font-size: 40px }
  .hero-dark { padding: 72px var(--space) 64px; min-height: auto }
  .page-hero { padding: 40px var(--space) 32px }
  .page-hero h1 { font-size: 28px }
  .process-step { padding: 28px 20px }
  .contact-form { padding: 24px }
  .cta-section { padding: 64px var(--space) }
  .cta-section h2 { font-size: 32px }
  .section-desc { font-size: 17px }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px }
  .process-grid { grid-template-columns: 1fr }
  .hero-dark h1 { font-size: 32px }
  .hero-buttons { flex-direction: column; align-items: center }
  .btn-lg { padding: 12px 28px; font-size: 17px; width: 100%; text-align: center }
  .section-title { font-size: 28px }
}

@media (prefers-reduced-motion: reduce) {
  .animate-in { opacity: 1; transform: none; transition: none }
  html { scroll-behavior: auto }
  .card:hover, .process-step:hover, .blog-card:hover .card { transform: none }
}