/* ============================================================
   火符科技 - 主样式表
   设计风格：品牌橙红 + 炭黑 + 暖白，科技感与商务权威并重
   主色取自 img/logo.png
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* 品牌色（logo 橙红） */
  --brand-600: #D8431C;
  --brand-500: #E8542A;
  --brand-400: #F26B3F;
  --brand-300: #F9A183;
  --brand-100: #FDEBE3;

  /* 中性色（logo 炭黑） */
  --ink-900: #1F2429;
  --ink-800: #2A3036;
  --ink-700: #3A4148;
  --ink-600: #4E565E;
  --ink-500: #6E767E;
  --ink-300: #C9CFD5;
  --ink-100: #EEF1F3;

  /* 辅助色（logo 英文青灰） */
  --teal: #5F7A7A;

  --cream: #FAF7F4;
  --cream-dark: #F2ECE5;

  --ivory: var(--cream);
  --ivory-dark: var(--cream-dark);
  --charcoal: var(--ink-900);
  --gray-700: #4A525A;
  --gray-500: #79828A;
  --gray-300: #C6CCD2;
  --gray-100: #EDEFF1;
  --white: #FFFFFF;
  --danger: #C0392B;
  --success: #27AE60;

  /* 兼容旧变量 */
  --navy-900: var(--ink-900);
  --navy-800: var(--ink-800);
  --navy-700: var(--ink-700);
  --navy-600: var(--ink-600);
  --navy-500: var(--ink-500);
  --gold-500: var(--brand-500);
  --gold-400: var(--brand-400);
  --gold-300: var(--brand-300);
  --gold-600: var(--brand-600);

  --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: "Cormorant Garamond", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --shadow-sm: 0 2px 8px rgba(31, 36, 41, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 36, 41, 0.10);
  --shadow-lg: 0 20px 60px rgba(31, 36, 41, 0.16);
  --shadow-gold: 0 10px 30px rgba(232, 84, 42, 0.28);
  --shadow-brand: 0 10px 30px rgba(232, 84, 42, 0.28);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --container: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--ink-900); }
body {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.7;
  color: var(--charcoal);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-500); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; color: var(--ink-900); }
h1 { font-size: 2.8rem; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 2rem; }
h3 { font-size: 1.3rem; }
.text-gold { color: var(--brand-500); }
.text-navy { color: var(--ink-800); }
.text-en { font-family: var(--font-en); letter-spacing: 0.02em; }

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

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(31, 36, 41, 0.08);
  box-shadow: 0 2px 20px rgba(31, 36, 41, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-img {
  height: 64px;
  width: auto;
  display: block;
}
.logo-mark {
  width: 40px;
  height: 40px;
  border: 2px solid var(--brand-500);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 18px;
  color: var(--brand-500);
  background: linear-gradient(135deg, rgba(232,84,42,0.15), transparent);
}
.logo-text {
  color: var(--ink-900);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.logo-sub {
  font-family: var(--font-en);
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 0.2em;
  font-weight: 400;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-item {
  color: var(--ink-600);
  font-size: 17px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: all var(--transition);
}
.nav-item:hover { color: var(--brand-500); background: var(--brand-100); }
.nav-item.active { color: var(--brand-500); }
.nav-item.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--brand-500);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  color: var(--ink-900);
  font-size: 22px;
}

/* ---------- Mobile Nav ---------- */
.mobile-nav {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: 99;
  padding: 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-item {
  padding: 16px;
  border-bottom: 1px solid var(--ink-100);
  font-size: 16px;
  color: var(--ink-800);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 620px;
  background:
    radial-gradient(900px 520px at 82% 8%, rgba(232,84,42,0.22), transparent 62%),
    radial-gradient(700px 460px at 6% 94%, rgba(95,122,122,0.22), transparent 65%),
    linear-gradient(135deg, #191D21 0%, #242A30 52%, #1B2025 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 92px 0;
}
.hero::before {
  content: "";
  position: absolute;
  top: -220px;
  right: -160px;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgba(232,84,42,0.20) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -180px;
  left: -140px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(95,122,122,0.22) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 35%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 40%, #000 35%, transparent 78%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 56px;
}
.hero-left { max-width: 640px; }
.hero-right { display: flex; justify-content: flex-end; }
.hero-en-tag {
  font-family: var(--font-en);
  font-size: 14px;
  color: var(--brand-400);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.hero-en-tag::before {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--brand-500);
}
.hero-title {
  color: var(--white);
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--brand-300) 0%, var(--brand-400) 45%, var(--brand-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  color: rgba(255,255,255,0.66);
  font-size: 17px;
  line-height: 1.85;
  margin-bottom: 34px;
  max-width: 560px;
}
.hero-stats {
  display: flex;
  gap: 44px;
  margin-top: 8px;
}
.hero-stat .num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--brand-400);
  line-height: 1;
}
.hero-stat .num span { font-size: 13px; color: rgba(255,255,255,0.45); margin-left: 3px; }
.hero-stat .label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.45);
  margin-top: 8px;
}

/* ---------- Query Box (Hero) 科技感查询卡 ---------- */
.query-box {
  position: relative;
  width: 100%;
  max-width: 560px;
  padding: 38px 38px 32px;
  border-radius: 22px;
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 100% 36px,
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 36px 100%,
    radial-gradient(120% 130% at 100% 0%, rgba(232,84,42,0.20), transparent 58%),
    linear-gradient(165deg, rgba(255,255,255,0.10), rgba(255,255,255,0.025));
  border: 1px solid rgba(232,84,42,0.38);
  box-shadow:
    0 34px 90px rgba(0,0,0,0.50),
    0 0 64px rgba(232,84,42,0.16),
    inset 0 1px 0 rgba(255,255,255,0.10);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
}
/* 四角科技描边 */
.qb-corner {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--brand-400);
  opacity: 0.75;
  pointer-events: none;
  z-index: 2;
}
.qb-corner.tl { top: 12px; left: 12px; border-right: 0; border-bottom: 0; border-radius: 6px 0 0 0; }
.qb-corner.tr { top: 12px; right: 12px; border-left: 0; border-bottom: 0; border-radius: 0 6px 0 0; }
.qb-corner.bl { bottom: 12px; left: 12px; border-right: 0; border-top: 0; border-radius: 0 0 0 6px; }
.qb-corner.br { bottom: 12px; right: 12px; border-left: 0; border-top: 0; border-radius: 0 0 6px 0; }
.query-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: -40%;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-400), transparent);
  animation: scanTop 3.6s linear infinite;
}
.query-box::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -70px;
  height: 70px;
  background: linear-gradient(180deg, transparent, rgba(232,84,42,0.10), transparent);
  animation: scanDown 4.5s linear infinite;
  pointer-events: none;
}
@keyframes scanTop { 0% { left: -40%; } 100% { left: 110%; } }
@keyframes scanDown {
  0% { top: -70px; }
  100% { top: 105%; }
}
.qb-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.qb-heading { display: flex; flex-direction: column; }
.qb-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-top: 10px;
}
.qb-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
}
.qb-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 10px #4ADE80;
  animation: qbBlink 2s infinite;
}
@keyframes qbBlink { 50% { opacity: 0.3; } }
.qb-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--brand-300);
  border: 1px solid rgba(232,84,42,0.45);
  background: rgba(232,84,42,0.10);
  padding: 4px 10px;
  border-radius: 4px;
  margin-top: 2px;
}
.query-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.query-tab {
  padding: 9px 24px;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all var(--transition);
}
.query-tab.active {
  color: var(--white);
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  box-shadow: 0 6px 18px rgba(232,84,42,0.35);
}
.query-input-wrap {
  display: flex;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.query-input {
  flex: 1;
  padding: 17px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.13);
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 16px;
  outline: none;
  transition: all var(--transition);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}
.query-input::placeholder { color: rgba(200,205,214,0.5); font-family: var(--font-cn); letter-spacing: 0; }
.query-input:focus {
  border-color: var(--brand-500);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 0 0 3px rgba(232,84,42,0.18), 0 0 20px rgba(232,84,42,0.18);
}
.query-box .btn-gold {
  padding: 17px 40px;
  font-size: 17px;
  letter-spacing: 0.12em;
}
.query-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 11.5px;
  color: rgba(255,255,255,0.38);
  position: relative;
  z-index: 1;
}
.query-hint b { color: var(--brand-300); font-weight: 500; }
.btn-gold {
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-600) 100%);
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-md);
  letter-spacing: 0.04em;
  transition: all var(--transition);
  white-space: nowrap;
  box-shadow: var(--shadow-brand);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 38px rgba(232,84,42,0.42);
  color: var(--white);
}

/* ============================================================
   SECTION GENERIC
   ============================================================ */
.section { padding: 80px 0; }
.section-dark { background: var(--ink-900); color: var(--gray-300); }
.section-navy { background: var(--ink-800); color: var(--gray-300); }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-en {
  font-family: var(--font-en);
  font-size: 13px;
  color: var(--brand-400);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--ink-900);
  margin-bottom: 12px;
}
.section-dark .section-title,
.section-navy .section-title { color: var(--white); }
.section-desc {
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
  font-size: 15px;
}
.section-dark .section-desc,
.section-navy .section-desc { color: rgba(255,255,255,0.55); }

/* ============================================================
   VALUES / PHILOSOPHY
   ============================================================ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.value-card {
  padding: 40px 32px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--brand-500);
  transition: width var(--transition);
}
.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(232,84,42,0.25);
}
.value-card:hover::before { width: 100%; }
.value-num {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 700;
  color: var(--brand-500);
  line-height: 1;
  margin-bottom: 20px;
  opacity: 0.9;
}
.value-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 12px;
}
.value-desc {
  color: var(--gray-500);
  font-size: 14px;
  line-height: 1.8;
}

/* ============================================================
   BUSINESS / SERVICES
   ============================================================ */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.business-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(160deg, rgba(255,255,255,0.07) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 48px 36px;
  transition: all var(--transition);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.business-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--brand-500), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.business-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-500);
  box-shadow: 0 20px 60px rgba(232,84,42,0.15);
}
.business-card:hover::before { opacity: 1; }
.business-icon {
  font-family: var(--font-en);
  font-size: 42px;
  color: var(--brand-400);
  margin-bottom: 24px;
  font-weight: 700;
  line-height: 1;
}
.business-title {
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.business-desc {
  color: var(--gray-300);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.business-link {
  color: var(--brand-400);
  font-size: 13px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}
.business-link::after { content: "→"; transition: transform var(--transition); }
.business-link:hover { gap: 14px; color: var(--brand-300); }

/* ============================================================
   AUTHORIZATION FILES (Carousel)
   ============================================================ */
.auth-files-section {
  position: relative;
  background: linear-gradient(160deg, #1E2328 0%, #2B2724 55%, #201F1E 100%);
  padding: 88px 0;
  overflow: hidden;
}
.auth-files-section::before {
  content: "";
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 520px;
  background: radial-gradient(ellipse, rgba(232,84,42,0.16) 0%, transparent 70%);
  pointer-events: none;
}
.auth-files-section .container { position: relative; z-index: 1; }
.auth-files-section .section-desc { color: rgba(255,255,255,0.55); }
.auth-carousel {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
}
.auth-track {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.auth-slide {
  flex: 0 0 calc(25% - 15px);
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #20252A;
  border: 1px solid rgba(232,84,42,0.2);
}
.auth-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.auth-slide:hover img { transform: scale(1.04); }

/* 授权文件放大查看 */
.img-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  background: rgba(16, 18, 20, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.img-lightbox.show { opacity: 1; visibility: visible; }
.img-lightbox img {
  max-width: 90vw;
  max-height: 86vh;
  width: auto;
  height: auto;
  margin: auto;
  border-radius: 6px;
  background: var(--white);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.img-lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-size: 18px;
  cursor: pointer;
  transition: background var(--transition);
}
.img-lightbox-close:hover { background: rgba(255, 255, 255, 0.22); }
.auth-file-doc {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--brand-300);
  text-align: center;
  padding: 16px;
}
.auth-file-doc-icon { font-size: 40px; }
.auth-file-doc-name { font-size: 14px; color: var(--white); font-weight: 500; }
.auth-file-doc-tip { font-size: 12px; color: var(--brand-300); }
.auth-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(232,84,42,0.15);
  border: 1px solid var(--brand-500);
  color: var(--brand-400);
  font-size: 20px;
  z-index: 3;
  transition: all var(--transition);
}
.auth-carousel-btn:hover { background: var(--brand-500); color: var(--ink-900); }
.auth-carousel-btn.prev { left: -24px; }
.auth-carousel-btn.next { right: -24px; }
.auth-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}
.auth-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(232,84,42,0.25);
  transition: all var(--transition);
}
.auth-dot.active { background: var(--brand-500); width: 28px; border-radius: 5px; }

/* ============================================================
   NEWS
   ============================================================ */
.news-tabs {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 40px;
  background: var(--gray-100);
  padding: 4px;
  border-radius: var(--radius-md);
  display: inline-flex;
}
.news-tabs-wrap { text-align: center; margin-bottom: 40px; }
.news-tab {
  padding: 10px 28px;
  color: var(--gray-500);
  font-size: 14px;
  border-radius: 6px;
  font-weight: 500;
  transition: all var(--transition);
}
.news-tab.active {
  background: var(--white);
  color: var(--ink-800);
  box-shadow: var(--shadow-sm);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  transition: all var(--transition);
  cursor: pointer;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232,84,42,0.3);
}
.news-thumb {
  aspect-ratio: 16/9;
  background: var(--ink-700);
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-body { padding: 20px; }
.news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brand-500);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.news-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-excerpt {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   COMPANY / CONTACT / REPORT
   ============================================================ */
.bottom-sections {
  background: var(--ink-900);
  padding: 80px 0;
  border-top: 1px solid rgba(232,84,42,0.1);
}
.bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.bottom-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(232,84,42,0.15);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.bottom-card h3 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.bottom-card .en-label {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--brand-400);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.contact-item:last-child { border-bottom: none; }
.contact-label {
  color: var(--gray-500);
  font-size: 13px;
  min-width: 100px;
}
.contact-value {
  color: var(--white);
  font-weight: 500;
  font-size: 14px;
}
.contact-value a { color: var(--brand-400); }
.contact-value a:hover { color: var(--brand-300); text-decoration: underline; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--ink-900);
  border-top: 1px solid rgba(232,84,42,0.12);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { font-size: 20px; }
.footer-brand p {
  color: var(--gray-500);
  font-size: 13px;
  margin-top: 16px;
  line-height: 1.8;
  max-width: 280px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  color: var(--gray-500);
  font-size: 13px;
  transition: all var(--transition);
}
.footer-col a:hover { color: var(--brand-400); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--gray-500);
  font-size: 12px;
}
.footer-icp a { color: var(--gray-500); }
.footer-icp a:hover { color: var(--brand-400); }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
  background: linear-gradient(160deg, var(--ink-900) 0%, var(--ink-700) 100%);
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,84,42,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,84,42,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
}
.page-header-content { position: relative; z-index: 2; }
.page-en-tag {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--brand-400);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.page-title {
  color: var(--white);
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.page-breadcrumb {
  color: var(--gray-500);
  font-size: 13px;
  display: flex;
  justify-content: center;
  gap: 8px;
  align-items: center;
}
.page-breadcrumb a { color: var(--gray-300); }
.page-breadcrumb a:hover { color: var(--brand-400); }
.page-breadcrumb .sep { color: var(--brand-500); opacity: 0.4; }

/* ============================================================
   CERTIFICATE SEARCH PAGE
   ============================================================ */
.cert-search-section {
  padding: 80px 0;
  background: var(--ivory);
}
.cert-search-box {
  max-width: 640px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 48px;
  border: 1px solid var(--gray-100);
}
.cert-search-head {
  text-align: center;
  margin-bottom: 36px;
}
.cert-search-head .icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ink-800), var(--ink-700));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  border: 2px solid var(--brand-500);
  font-family: var(--font-en);
  font-size: 32px;
  font-weight: 700;
  color: var(--brand-400);
}
.cert-search-head h3 {
  font-size: 1.5rem;
  color: var(--ink-900);
  margin-bottom: 8px;
}
.cert-search-head p { color: var(--gray-500); font-size: 14px; }

.cert-form-group { margin-bottom: 24px; }
.cert-form-label {
  display: block;
  font-size: 13px;
  color: var(--gray-700);
  margin-bottom: 10px;
  font-weight: 500;
}
.cert-input {
  width: 100%;
  padding: 16px 20px;
  border: 2px solid var(--gray-100);
  border-radius: var(--radius-md);
  font-size: 15px;
  color: var(--charcoal);
  background: var(--white);
  outline: none;
  transition: all var(--transition);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}
.cert-input:focus {
  border-color: var(--brand-500);
  box-shadow: 0 0 0 4px rgba(232,84,42,0.12);
}
.cert-search-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-600) 100%);
  color: var(--ink-900);
  font-weight: 600;
  font-size: 16px;
  border-radius: var(--radius-md);
  letter-spacing: 0.08em;
  transition: all var(--transition);
  box-shadow: var(--shadow-brand);
}
.cert-search-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(232,84,42,0.4);
}

/* Result area */
.cert-result {
  margin-top: 40px;
  display: none;
  animation: fadeInUp 0.4s ease;
}
.cert-result.show { display: block; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.cert-result-box {
  background: var(--ink-900);
  border: 1px solid var(--brand-500);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cert-result-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(232,84,42,0.08), transparent 60%);
}
.cert-badge {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(39, 174, 96, 0.15);
  border: 1px solid var(--success);
  border-radius: 20px;
  color: var(--success);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}
.cert-badge::before {
  content: "✓";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--success);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}
.cert-image-wrap {
  position: relative;
  z-index: 2;
  max-width: 100%;
  margin-bottom: 28px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(232,84,42,0.3);
}
.cert-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
}
.cert-meta {
  position: relative;
  z-index: 2;
  text-align: left;
  max-width: 420px;
  margin: 0 auto;
}
.cert-meta-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(232,84,42,0.15);
}
.cert-meta-row:last-child { border-bottom: none; }
.cert-meta-label { color: var(--gray-500); font-size: 13px; }
.cert-meta-value { color: var(--white); font-weight: 500; font-size: 14px; font-family: var(--font-mono); }

.cert-result-notfound {
  margin-top: 40px;
  display: none;
  padding: 48px;
  background: rgba(192, 57, 43, 0.06);
  border: 1px solid rgba(192, 57, 43, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}
.cert-result-notfound.show { display: block; }
.cert-result-notfound .icon-x {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(192, 57, 43, 0.15);
  color: var(--danger);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.cert-result-notfound h4 { color: var(--danger); margin-bottom: 8px; font-size: 1.15rem; }
.cert-result-notfound p { color: var(--gray-500); font-size: 14px; }

/* ============================================================
   AUTHORIZE PAGE (授权公示)
   ============================================================ */
.auth-section { padding: 60px 0 80px; }
.auth-category-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  justify-content: center;
}
.auth-cat-btn {
  padding: 12px 28px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}
.auth-cat-btn:hover { border-color: var(--brand-500); color: var(--brand-500); }
.auth-cat-btn.active {
  background: var(--ink-800);
  color: var(--brand-400);
  border-color: var(--ink-800);
}
.auth-block {
  margin-bottom: 48px;
}
.auth-block-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 12px;
}
.auth-block-title::before {
  content: "";
  width: 4px;
  height: 22px;
  background: var(--brand-500);
  border-radius: 2px;
}
.auth-list {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.auth-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--gray-100);
  transition: all var(--transition);
}
.auth-list-item:last-child { border-bottom: none; }
.auth-list-item:hover {
  background: linear-gradient(90deg, rgba(232,84,42,0.04), transparent);
  padding-left: 30px;
}
.auth-item-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.auth-item-name { font-weight: 500; color: var(--ink-900); font-size: 14px; }
.auth-item-domain {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-500);
}
.auth-item-badge {
  padding: 4px 12px;
  background: rgba(232,84,42,0.1);
  color: var(--brand-600);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

/* 产品授权：分类方块 */
.auth-cat-group { margin-bottom: 34px; }
.auth-cat-name {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-800);
  margin-bottom: 16px;
}
.auth-cat-name::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--brand-500);
}
.auth-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.auth-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 88px;
  padding: 20px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, #E9EFF5 0%, #E7EAF6 55%, #EFEDF9 100%);
  box-shadow: 0 6px 16px rgba(31, 36, 41, 0.06);
  text-align: center;
  transition: all var(--transition);
}
.auth-tile:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(31, 36, 41, 0.13);
  color: inherit;
}
.auth-tile-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
  line-height: 1.4;
}
.auth-tile-domain {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--gray-500);
  word-break: break-all;
}

/* 开区授权：查询 + 授权目录 */
.kaiqu-panel {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 34px 36px 30px;
  box-shadow: var(--shadow-sm);
}
.kaiqu-form {
  display: flex;
  max-width: 640px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.kaiqu-form:focus-within {
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(232,84,42,0.12);
}
.kaiqu-input {
  flex: 1;
  min-width: 0;
  padding: 15px 18px;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--ink-800);
  background: var(--white);
}
.kaiqu-input::placeholder { color: var(--gray-500); }
.kaiqu-submit {
  padding: 0 32px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: filter var(--transition);
}
.kaiqu-submit:hover { filter: brightness(1.06); }
.kaiqu-catalog { margin-top: 34px; }
.kaiqu-catalog-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.kaiqu-catalog-title span {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  white-space: nowrap;
}
.kaiqu-catalog-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--gray-100);
}
.kaiqu-levels { display: flex; flex-wrap: wrap; gap: 14px; }
.kaiqu-level {
  padding: 12px 26px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
}
.lv-xingyao  { background: #FBF3E0; color: #A87A12; border-color: #EBD9AE; }
.lv-zuanshi  { background: #E9F4F6; color: #2E7D8F; border-color: #C6E2E8; }
.lv-bojin    { background: #F0EDF8; color: #5D4E93; border-color: #D9D2EC; }
.lv-huangjin { background: #FDEEE7; color: #C2410C; border-color: #F6D3C1; }

/* ============================================================
   NEWS LIST PAGE
   ============================================================ */
.news-list-section { padding: 60px 0 80px; }
.news-list-tabs {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  padding: 4px;
  border-radius: var(--radius-md);
  display: inline-flex;
  margin-bottom: 40px;
}
.news-list-wrap { text-align: center; }
.news-list {
  max-width: 800px;
  margin: 0 auto;
}
.news-empty {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px;
  text-align: center;
  color: var(--gray-500);
  font-size: 14px;
}
.news-list-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--gray-100);
  transition: all var(--transition);
}
.news-list-item:hover { padding-left: 8px; }
.news-list-item .date-box {
  min-width: 72px;
  text-align: center;
  padding: 12px;
  background: var(--ink-800);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.news-list-item .date-day {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 700;
  color: var(--brand-400);
  line-height: 1;
}
.news-list-item .date-month {
  font-size: 11px;
  color: var(--gray-500);
  margin-top: 4px;
  letter-spacing: 0.1em;
}
.news-list-item .content { flex: 1; }
.news-list-item h4 {
  font-size: 16px;
  color: var(--ink-900);
  margin-bottom: 8px;
  font-weight: 600;
  line-height: 1.5;
}
.news-list-item:hover h4 { color: var(--brand-600); }
.news-list-item p {
  color: var(--gray-500);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.pagination a, .pagination span {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}
.pagination a {
  background: var(--white);
  border: 1px solid var(--gray-100);
  color: var(--gray-700);
}
.pagination a:hover { border-color: var(--brand-500); color: var(--brand-500); }
.pagination .current {
  background: var(--ink-800);
  color: var(--brand-400);
}
.pagination .prev-page, .pagination .next-page { width: auto; padding: 0 16px; }

/* ============================================================
   NEWS DETAIL PAGE
   ============================================================ */
.news-detail-section { padding: 60px 0 80px; }
.news-detail-wrap { max-width: 760px; margin: 0 auto; }
.news-detail-head { margin-bottom: 40px; }
.news-detail-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ink-900);
  margin-bottom: 20px;
  line-height: 1.4;
}
.news-detail-meta {
  display: flex;
  gap: 24px;
  color: var(--gray-500);
  font-size: 13px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-100);
}
.news-detail-meta span { display: flex; align-items: center; gap: 6px; }
.news-detail-meta .date-color { color: var(--brand-500); font-family: var(--font-mono); }
.news-detail-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--charcoal);
}
.news-detail-body p { margin-bottom: 20px; }
.news-detail-body img { margin: 24px 0; border-radius: var(--radius-md); }

/* ============================================================
   CONTACT / REPORT PAGE
   ============================================================ */
.contact-section { padding: 60px 0 80px; }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info-card, .contact-form-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-info-card h3, .contact-form-card h3 {
  font-size: 1.4rem;
  color: var(--ink-900);
  margin-bottom: 8px;
}
.contact-info-card .en-label, .contact-form-card .en-label {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--brand-400);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  color: var(--gray-700);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  font-size: 14px;
  background: var(--ivory);
  outline: none;
  transition: all var(--transition);
  resize: vertical;
}
.form-control:focus {
  border-color: var(--brand-500);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(232,84,42,0.12);
}
.form-textarea { min-height: 120px; }

/* ============================================================
   FLOATING TOOLBAR
   ============================================================ */
.floating-bar {
  position: fixed;
  right: 20px;
  bottom: 60px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--ink-800);
  border: 1px solid var(--brand-500);
  color: var(--brand-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
  font-size: 10px;
}
.floating-btn:hover {
  background: var(--brand-500);
  color: var(--ink-900);
  transform: translateY(-3px);
}
.floating-btn .icon { font-size: 18px; }

/* Back to top */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 196px;
  z-index: 60;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--gray-100);
  color: var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all var(--transition);
}
.back-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-top:hover { color: var(--brand-500); border-color: var(--brand-500); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .values-grid, .business-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .bottom-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.6rem; }
  .contact-wrap { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-left { max-width: 100%; }
  .hero-right { justify-content: flex-start; }
  .query-box { max-width: 100%; }
}

@media (max-width: 768px) {
  .nav-main { display: none; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .mobile-nav.open { display: flex; }
  
  .hero { padding: 60px 0; min-height: auto; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 22px; }
  .logo-img { height: 56px; }
  .query-box { padding: 28px 24px 24px; }
  .qb-title { font-size: 26px; }
  .query-box .btn-gold { padding: 15px 32px; font-size: 16px; }
  .query-input-wrap { flex-direction: column; }
  
  .values-grid, .business-grid, .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  
  .section { padding: 60px 0; }
  .section-title { font-size: 1.6rem; }
  
  .page-header { padding: 60px 0 40px; }
  .page-title { font-size: 1.8rem; }
  
  .cert-search-box { padding: 28px 20px; }
  
  .auth-carousel-btn.prev { left: 8px; }
  .auth-carousel-btn.next { right: 8px; }
  .auth-slide { flex: 0 0 calc(50% - 10px); }
  
  .news-list-item { flex-direction: column; gap: 14px; }
  .news-list-item .date-box { min-width: auto; display: inline-block; padding: 8px 14px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .auth-slide { flex: 0 0 calc(50% - 10px); }
  .kaiqu-panel { padding: 24px 20px; }
  .kaiqu-form { flex-direction: column; }
  .kaiqu-submit { padding: 14px; }
  .kaiqu-level { flex: 1 1 calc(50% - 7px); text-align: center; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
}

/* ---------- Utility ---------- */
.container-fluid { width: 100%; padding: 0 20px; }
.text-center { text-align: center; }
.text-gold { color: var(--brand-500); }
.text-navy { color: var(--ink-800); }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.clearfix::after { content: ""; display: table; clear: both; }
.hide { display: none !important; }
.show { display: block !important; }