/* roulang page: index */
:root {
  --primary: #1247d6;
  --primary-dark: #0b36a8;
  --primary-light: #4d7cff;
  --accent: #ff5a36;
  --accent-soft: #ffd9c7;
  --bg-body: #f5f7fd;
  --bg-white: #ffffff;
  --bg-dark: #0b1530;
  --bg-deep: #080f24;
  --text: #15203c;
  --text-weak: #5f6c8f;
  --border: #e3e9f4;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow: 0 8px 28px rgba(15, 36, 84, 0.08);
  --shadow-lg: 0 24px 56px rgba(15, 36, 84, 0.14);
  --transition: all 0.3s ease;
  --container: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul,
ol {
  list-style: none;
}

button,
input {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}

:focus-visible {
  outline: 3px solid rgba(18, 71, 214, 0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(18, 71, 214, 0.25);
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(18, 71, 214, 0.32);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.26);
  transform: translateY(-2px);
}

.btn--glass {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn--glass:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 13px;
}

.btn--accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 90, 54, 0.28);
}

.btn--accent:hover {
  background: #e8451f;
  transform: translateY(-2px);
}

/* ========== 分割标签 ========== */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 14px;
}

.section-tag::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}

.section {
  padding: 100px 0;
}

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

.section--dark {
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 36px;
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 10px;
}

.section-head p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.7;
}

.section-head--split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  max-width: 100%;
  flex-wrap: wrap;
}

.section-head--light h2 {
  color: #fff;
}

.section-head--light p {
  color: #9da9d1;
}

/* ========== Header ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 36, 84, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.3px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1.2;
  flex-shrink: 0;
}

.logo__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 6px 18px rgba(18, 71, 214, 0.28);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #eff2fa;
  padding: 5px;
  border-radius: var(--radius-pill);
}

.nav__link {
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-weak);
  background: transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.7);
}

.nav__link.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(15, 36, 84, 0.1);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #eff2fa;
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: #e3e9f4;
}

.nav-toggle.is-open {
  background: var(--primary);
  color: #fff;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 130px 0 140px;
  background: var(--bg-deep);
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.45;
  z-index: -2;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 15, 36, 0.96) 0%, rgba(8, 15, 36, 0.78) 45%, rgba(8, 15, 36, 0.4) 100%);
}

.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  color: #cdd7ff;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 28px;
}

.badge-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #28e79a;
  box-shadow: 0 0 0 0 rgba(40, 231, 154, 0.5);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(40, 231, 154, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(40, 231, 154, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(40, 231, 154, 0);
  }
}

.hero__title {
  font-size: 58px;
  line-height: 1.12;
  color: #fff;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 22px;
}

.hero__line {
  display: block;
}

.hero__line--accent {
  background: linear-gradient(90deg, #ffd9a8, #ff5a36);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-size: 36px;
  font-weight: 700;
  margin-top: 6px;
  letter-spacing: -0.5px;
}

.hero__lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 34px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 42px;
}

.hero__status-bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  color: #9da9d1;
  font-size: 13px;
  flex-wrap: wrap;
}

.hero__status-bar .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28e79a;
  box-shadow: 0 0 0 0 rgba(40, 231, 154, 0.5);
  animation: pulse-dot 1.8s infinite;
}

.status-divider {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.2);
}

/* ========== Stats ========== */
.stats {
  position: relative;
  z-index: 5;
  padding: 0;
  margin-top: -72px;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 38px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.stat {
  text-align: center;
  padding: 8px;
  position: relative;
}

.stat:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--border);
}

.stat__number {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--primary);
  letter-spacing: -1px;
}

.stat__number sup {
  font-size: 22px;
  top: -14px;
  color: var(--accent);
}

.stat__label {
  color: var(--text-weak);
  font-size: 14px;
  margin-top: 6px;
  font-weight: 500;
}

/* ========== About ========== */
.about {
  padding: 110px 0 90px;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 70px;
  align-items: center;
}

.about__media {
  position: relative;
}

.about__media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.about__media::after {
  content: "";
  position: absolute;
  inset: 20px -20px -20px 20px;
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.25;
}

.about__content h2 {
  font-size: 36px;
  line-height: 1.28;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.about__content > p {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 22px;
}

.about__features {
  display: grid;
  gap: 12px;
  margin: 24px 0 28px;
}

.about__features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 15px;
  background: var(--bg-body);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
}

.about__features i {
  color: var(--primary);
  font-size: 16px;
}

.text-link {
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
}

.text-link:hover {
  gap: 12px;
  color: var(--primary-dark);
}

/* ========== Categories ========== */
.categories {
  background: var(--bg-white);
  padding: 100px 0;
}

.categories__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  min-height: 280px;
  box-shadow: var(--shadow);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.cat-card--main {
  grid-row: span 2;
  min-height: 420px;
}

.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.cat-card:hover img {
  transform: scale(1.08);
}

.cat-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 18, 42, 0.05) 0%, rgba(10, 18, 42, 0.72) 70%, rgba(10, 18, 42, 0.9) 100%);
}

.cat-card__body {
  position: relative;
  z-index: 2;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  color: #fff;
}

.cat-card__tag {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
  color: #fff;
  letter-spacing: 0.04em;
}

.cat-card h3 {
  font-size: 26px;
  margin-bottom: 8px;
  font-weight: 700;
  line-height: 1.35;
}

.cat-card p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 16px;
}

.cat-card__more {
  font-size: 14px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffd9c7;
  transition: var(--transition);
}

.cat-card:hover .cat-card__more {
  gap: 12px;
  color: #ff5a36;
}

/* ========== News ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.news-card__link {
  display: block;
  height: 100%;
}

.news-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.news-card__time {
  font-size: 13px;
  color: var(--text-weak);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-card__title {
  font-size: 19px;
  line-height: 1.5;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  transition: var(--transition);
}

.news-card:hover .news-card__title {
  color: var(--primary);
}

.news-card__excerpt {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__more {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.news-card:hover .news-card__more {
  gap: 10px;
}

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 24px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  color: var(--text-weak);
  font-size: 15px;
}

.news-empty i {
  font-size: 36px;
  display: block;
  margin-bottom: 14px;
  color: #b8c3db;
}

/* ========== Process ========== */
.process {
  background: var(--bg-dark);
  padding: 110px 0;
  position: relative;
}

.process::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(18, 71, 214, 0.18);
  filter: blur(80px);
  pointer-events: none;
}

.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.process-step {
  padding: 34px 26px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.process-step:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
}

.process-step__num {
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, #ffd9a8, #ff5a36);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 18px 0 10px;
}

.process-step p {
  color: #9da9d1;
  font-size: 14px;
  line-height: 1.7;
}

/* ========== Feature Cards ========== */
.features {
  padding: 100px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.feature-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.feature-card__body {
  padding: 30px 32px;
}

.feature-card__body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card__body p {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.75;
}

/* ========== FAQ ========== */
.faq {
  background: var(--bg-white);
  padding: 100px 0;
}

.faq__wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq__list {
  display: grid;
  gap: 14px;
}

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

.faq-item:hover {
  box-shadow: var(--shadow);
  border-color: rgba(18, 71, 214, 0.18);
}

.faq-item summary {
  cursor: pointer;
  padding: 24px 28px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--text-weak);
  transition: transform 0.35s ease, color 0.35s ease;
  flex-shrink: 0;
}

.faq-item[open] summary {
  color: var(--primary);
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-item p {
  padding: 0 28px 26px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta {
  padding: 110px 0;
}

.cta__box {
  background: linear-gradient(135deg, var(--primary) 0%, #3a4ddb 55%, #7b5cff 100%);
  border-radius: 32px;
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta__box::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.cta__box::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
}

.cta__box h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.cta__box > p {
  opacity: 0.88;
  font-size: 16px;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}

.cta__form {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta__form input {
  flex: 1;
  padding: 15px 22px;
  border-radius: var(--radius-pill);
  border: none;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.cta__form input::placeholder {
  color: #8b96b5;
}

.cta__form input:focus {
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.25);
}

.cta__hint {
  font-size: 12px;
  opacity: 0.7;
  margin-top: 16px;
  position: relative;
  z-index: 2;
}

/* ========== Footer ========== */
.footer {
  background: var(--bg-deep);
  color: #8b97c4;
  padding-top: 80px;
  font-size: 14px;
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand .footer__logo {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.3px;
  line-height: 1.3;
  display: inline-block;
}

.footer__brand p {
  margin-top: 14px;
  color: #7d88b5;
  font-size: 14px;
  line-height: 1.75;
  max-width: 280px;
}

.footer__col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.footer__col a {
  display: block;
  color: #8b97c4;
  font-size: 14px;
  padding: 4px 0;
  transition: var(--transition);
}

.footer__col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer__col span {
  display: block;
  padding: 4px 0;
  color: #7d88b5;
}

.footer__bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #5d6a94;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero__title {
    font-size: 48px;
  }

  .hero__line--accent {
    font-size: 32px;
  }

  .stats__grid {
    padding: 30px;
    gap: 16px;
  }

  .stat__number {
    font-size: 36px;
  }

  .about__grid {
    gap: 44px;
  }

  .about__media img {
    height: 400px;
  }

  .process__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__top {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 76px 0;
  }

  .header__inner {
    height: 66px;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-radius: 16px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    display: none;
    margin-top: 8px;
  }

  .nav--open {
    display: flex;
  }

  .nav__link {
    padding: 12px 18px;
    border-radius: 12px;
    text-align: center;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header__actions .btn {
    display: none;
  }

  .hero {
    padding: 100px 0 120px;
  }

  .hero__title {
    font-size: 38px;
  }

  .hero__line--accent {
    font-size: 27px;
  }

  .hero__lead {
    font-size: 16px;
  }

  .hero__status-bar {
    font-size: 12px;
    padding: 8px 16px;
  }

  .stats {
    margin-top: -56px;
  }

  .stats__grid {
    grid-template-columns: 1fr 1fr;
    padding: 28px 24px;
    gap: 28px 16px;
  }

  .stat:not(:last-child)::after {
    display: none;
  }

  .stat:nth-child(2)::after {
    display: none;
  }

  .about__grid {
    grid-template-columns: 1fr;
  }

  .about__media img {
    height: 320px;
    width: 100%;
  }

  .categories__grid {
    grid-template-columns: 1fr;
  }

  .cat-card--main {
    grid-row: auto;
    min-height: 340px;
  }

  .cat-card {
    min-height: 240px;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .process__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .features__grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .feature-card img {
    height: 220px;
  }

  .cta__box {
    padding: 48px 24px;
  }

  .cta__box h2 {
    font-size: 28px;
  }

  .cta__form {
    flex-direction: column;
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 60px 0;
  }

  .container {
    padding: 0 18px;
  }

  .hero {
    padding: 80px 0 100px;
  }

  .hero__title {
    font-size: 32px;
  }

  .hero__line--accent {
    font-size: 24px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__status-bar {
    width: 100%;
    justify-content: center;
    font-size: 11px;
  }

  .status-divider {
    display: none;
  }

  .stats__grid {
    grid-template-columns: 1fr 1fr;
    padding: 22px 16px;
  }

  .stat__number {
    font-size: 30px;
  }

  .stat__label {
    font-size: 13px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .section-head--split {
    flex-direction: column;
    align-items: flex-start;
  }

  .cat-card {
    min-height: 220px;
  }

  .cat-card--main {
    min-height: 300px;
  }

  .cat-card h3 {
    font-size: 22px;
  }

  .about__media img {
    height: 260px;
  }

  .about__content h2 {
    font-size: 28px;
  }

  .news-card {
    padding: 22px;
  }

  .faq-item summary {
    padding: 20px;
    font-size: 15px;
  }

  .faq-item p {
    padding: 0 20px 20px;
  }

  .cta__box {
    padding: 40px 20px;
    border-radius: 24px;
  }

  .cta__box h2 {
    font-size: 24px;
  }

  .footer__top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* roulang page: category1 */
:root{
      --primary:#0a1c33;
      --primary-dark:#071527;
      --primary-light:#12335c;
      --accent:#22d3c5;
      --accent-2:#f5a623;
      --bg:#f4f7fb;
      --bg-white:#ffffff;
      --bg-soft:#eaf1f8;
      --text:#1c2b3a;
      --text-light:#5b6b7b;
      --border:#dce6f0;
      --radius:18px;
      --radius-sm:10px;
      --shadow:0 12px 32px rgba(10,28,51,.08);
      --shadow-lg:0 22px 48px rgba(10,28,51,.14);
      --font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
      --container:1200px;
    }
    *{box-sizing:border-box;margin:0;padding:0;}
    html{scroll-behavior:smooth;}
    body{font-family:var(--font-family);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;}
    a{color:inherit;text-decoration:none;}
    img{max-width:100%;display:block;}
    button{font-family:inherit;border:none;cursor:pointer;background:none;}
    input{font-family:inherit;}
    ul,ol{list-style:none;}
    .container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(34,211,197,.5);outline-offset:2px;border-radius:6px;}

    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;text-decoration:none;border:1px solid transparent;transition:all .25s;cursor:pointer;line-height:1.2;}
    .btn--primary{background:var(--accent);color:#062033;}
    .btn--primary:hover{background:#3cdbce;color:#062033;transform:translateY(-2px);box-shadow:0 10px 22px rgba(34,211,197,.35);}
    .btn--accent{background:var(--accent-2);color:#fff;}
    .btn--accent:hover{background:#ffb544;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(245,166,35,.35);}
    .btn--ghost{background:#fff;border-color:var(--border);color:var(--primary);}
    .btn--ghost:hover{border-color:var(--accent);color:#0e8f83;background:rgba(34,211,197,.06);transform:translateY(-2px);}
    .btn--lg{padding:14px 30px;font-size:16px;}
    .btn--sm{padding:9px 18px;font-size:14px;}

    .tag{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;}
    .tag--light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18);}
    .tag--soft{background:var(--bg-soft);color:var(--primary);}
    .tag--accent{background:rgba(34,211,197,.14);color:#0e8f83;border:1px solid rgba(34,211,197,.3);}

    .header{position:sticky;top:0;z-index:100;background:rgba(10,28,51,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08);}
    .header__inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px;}
    .logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;letter-spacing:.2px;white-space:nowrap;}
    .logo__icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#0ea5e9);display:flex;align-items:center;justify-content:center;color:#062033;font-size:16px;box-shadow:0 6px 16px rgba(34,211,197,.3);}
    .nav{display:flex;gap:6px;align-items:center;}
    .nav__link{padding:9px 16px;border-radius:999px;color:rgba(255,255,255,.72);font-size:15px;transition:all .22s;white-space:nowrap;}
    .nav__link:hover{color:#fff;background:rgba(255,255,255,.08);}
    .nav__link.active{color:#062033;background:var(--accent);font-weight:600;}
    .header__actions{display:flex;align-items:center;gap:12px;}
    .nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;font-size:18px;align-items:center;justify-content:center;transition:.2s;}
    .nav-toggle:hover{background:rgba(255,255,255,.16);}

    .page-banner{position:relative;padding:110px 0 84px;background-size:cover;background-position:center;color:#fff;}
    .page-banner__overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(7,21,39,.96),rgba(10,28,51,.82) 55%,rgba(13,42,74,.58));}
    .page-banner__inner{position:relative;z-index:2;max-width:840px;}
    .breadcrumb{display:flex;gap:10px;align-items:center;font-size:14px;color:rgba(255,255,255,.65);margin-bottom:20px;flex-wrap:wrap;}
    .breadcrumb a{color:rgba(255,255,255,.65);transition:.2s;}
    .breadcrumb a:hover{color:#fff;}
    .page-banner h1{font-size:48px;line-height:1.2;margin:0 0 18px;font-weight:800;letter-spacing:.5px;}
    .page-banner__lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);max-width:700px;margin-bottom:24px;}
    .page-banner__tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;}
    .page-banner .btn i{margin-left:2px;}

    .ticker{background:var(--primary-dark);border-bottom:1px solid rgba(255,255,255,.06);}
    .ticker__inner{display:flex;align-items:center;gap:16px;padding:13px 0;}
    .ticker__label{display:inline-flex;align-items:center;gap:8px;background:rgba(245,166,35,.16);color:var(--accent-2);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;white-space:nowrap;}
    .ticker__text{color:rgba(255,255,255,.72);font-size:14px;letter-spacing:.4px;}

    .section{padding:92px 0;}
    .section--soft{background:var(--bg);}
    .section-head{max-width:740px;margin-bottom:48px;}
    .section-tag{display:inline-block;background:rgba(34,211,197,.14);color:#0e8f83;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;margin-bottom:14px;}
    .section-head h2{font-size:34px;font-weight:800;color:var(--primary);line-height:1.3;margin:0 0 12px;}
    .section-head p{color:var(--text-light);font-size:16px;line-height:1.8;margin:0;}

    .link-more{display:inline-flex;align-items:center;gap:8px;color:#0e8f83;font-weight:600;font-size:15px;transition:.2s;}
    .link-more:hover{gap:12px;color:var(--primary);}

    .intro__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center;}
    .intro__content h2{font-size:32px;font-weight:800;color:var(--primary);line-height:1.35;margin-bottom:18px;}
    .intro__content p{color:var(--text-light);font-size:15px;line-height:1.85;margin-bottom:16px;}
    .intro__content .link-more{margin-top:8px;}
    .intro__stats{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
    .stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);transition:all .25s;}
    .stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(34,211,197,.6);}
    .stat-card__num{display:block;font-size:38px;font-weight:800;color:var(--primary);line-height:1;}
    .stat-card__num em{font-style:normal;color:var(--accent-2);}
    .stat-card__label{display:block;margin-top:10px;color:var(--text-light);font-size:14px;}

    .services-section{background:var(--bg-white);}
    .services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
    .service-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s;display:flex;flex-direction:column;}
    .service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
    .service-card__media{position:relative;height:190px;overflow:hidden;}
    .service-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s;}
    .service-card:hover .service-card__media img{transform:scale(1.06);}
    .service-card__badge{position:absolute;top:14px;left:14px;background:rgba(7,21,39,.8);color:#fff;padding:6px 12px;border-radius:8px;font-size:12px;font-weight:600;backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.12);}
    .service-card__body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
    .service-card__body h3{font-size:20px;font-weight:700;color:var(--primary);margin:0;}
    .service-card__body p{color:var(--text-light);font-size:14px;line-height:1.75;margin:0;flex:1;}
    .service-card__body .link-more{font-size:14px;}

    .guides{background:var(--bg);}
    .guide-list{display:flex;flex-direction:column;gap:18px;max-width:940px;margin:0 auto;}
    .guide-item{display:flex;align-items:center;gap:24px;background:#fff;border-radius:var(--radius);border:1px solid var(--border);padding:26px 28px;box-shadow:var(--shadow);transition:all .28s;position:relative;overflow:hidden;}
    .guide-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(var(--accent),#0ea5e9);opacity:0;transition:opacity .28s;}
    .guide-item:hover{transform:translateX(6px);box-shadow:var(--shadow-lg);}
    .guide-item:hover::before{opacity:1;}
    .guide-item__num{font-size:30px;font-weight:800;color:rgba(34,211,197,.35);min-width:56px;line-height:1;}
    .guide-item__body{flex:1;}
    .guide-item__body h3{font-size:18px;font-weight:700;color:var(--primary);margin:0 0 6px;}
    .guide-item__body p{color:var(--text-light);font-size:14px;line-height:1.7;margin:0;}
    .guide-item__meta{display:flex;align-items:center;gap:12px;color:var(--text-light);font-size:13px;white-space:nowrap;}
    .guide-item__meta i{color:var(--accent);}

    .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
    .step-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 26px;position:relative;box-shadow:var(--shadow);transition:all .25s;}
    .step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}
    .step-card__icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--accent),#0ea5e9);color:#062033;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;box-shadow:0 8px 18px rgba(34,211,197,.3);}
    .step-card h3{font-size:18px;font-weight:700;color:var(--primary);margin:0 0 8px;}
    .step-card p{font-size:14px;color:var(--text-light);line-height:1.7;margin:0;}
    .step-card__step{position:absolute;top:20px;right:24px;font-size:46px;font-weight:800;color:#edf3fa;line-height:1;user-select:none;}

    .faq__list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
    .faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:border-color .25s;}
    .faq-item[open]{border-color:rgba(34,211,197,.6);}
    .faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;padding:22px 26px;font-weight:700;color:var(--primary);font-size:16px;transition:color .2s;}
    .faq-item summary::-webkit-details-marker{display:none;}
    .faq-item summary:hover{color:#0e8f83;}
    .faq-item summary i{color:var(--accent);transition:transform .3s;font-size:15px;}
    .faq-item[open] summary i{transform:rotate(45deg);}
    .faq-item__answer{padding:0 26px 24px;color:var(--text-light);font-size:15px;line-height:1.85;}

    .cta{position:relative;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);padding:92px 0;color:#fff;overflow:hidden;}
    .cta::before{content:'';position:absolute;right:-120px;top:-100px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,197,.32),transparent 70%);}
    .cta::after{content:'';position:absolute;left:-100px;bottom:-120px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(245,166,35,.2),transparent 70%);}
    .cta__inner{position:relative;z-index:2;text-align:center;max-width:660px;margin:0 auto;}
    .cta h2{font-size:34px;font-weight:800;margin:0 0 14px;}
    .cta p{color:rgba(255,255,255,.75);font-size:16px;line-height:1.8;margin-bottom:32px;}
    .cta__form{display:flex;gap:8px;justify-content:center;background:rgba(255,255,255,.1);padding:10px;border-radius:999px;border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(8px);}
    .cta__form input{flex:1;background:transparent;border:none;outline:none;color:#fff;padding:10px 18px;font-size:15px;min-width:0;}
    .cta__form input::placeholder{color:rgba(255,255,255,.55);}
    .cta__form .btn{border-radius:999px;white-space:nowrap;}

    .footer{background:var(--primary-dark);color:rgba(255,255,255,.7);padding:60px 0 0;}
    .footer__top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);}
    .footer__brand .footer__logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;display:inline-block;}
    .footer__brand p{font-size:14px;line-height:1.8;max-width:320px;margin:0;}
    .footer__col{display:flex;flex-direction:column;gap:10px;font-size:14px;}
    .footer__col h4{color:#fff;font-size:15px;margin:0 0 8px;}
    .footer__col a{color:rgba(255,255,255,.65);transition:color .2s;}
    .footer__col a:hover{color:var(--accent);}
    .footer__col span{color:rgba(255,255,255,.5);}
    .footer__bottom{padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);}

    @media (max-width:1024px){
      .services-grid{grid-template-columns:repeat(2,1fr);}
      .intro__grid{grid-template-columns:1fr;gap:44px;}
      .steps-grid{grid-template-columns:repeat(2,1fr);}
      .footer__top{grid-template-columns:1fr 1fr;}
      .page-banner h1{font-size:40px;}
    }
    @media (max-width:768px){
      .nav-toggle{display:inline-flex;}
      .nav{position:absolute;top:72px;left:0;right:0;display:none;flex-direction:column;background:var(--primary);padding:14px;gap:4px;border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 24px 48px rgba(0,0,0,.3);}
      .nav.open{display:flex;}
      .nav__link{padding:13px 18px;border-radius:12px;}
      .page-banner{padding:80px 0 56px;}
      .page-banner h1{font-size:34px;}
      .section{padding:68px 0;}
      .section-head h2{font-size:28px;}
      .guide-item{flex-wrap:wrap;gap:16px;}
      .guide-item__num{min-width:44px;font-size:26px;}
      .ticker__text{display:none;}
      .cta__form{flex-direction:column;border-radius:24px;gap:8px;}
      .cta__form .btn{justify-content:center;}
      .cta h2{font-size:28px;}
    }
    @media (max-width:520px){
      .header__inner{height:64px;}
      .nav{top:64px;}
      .header .btn--sm{display:none;}
      .services-grid{grid-template-columns:1fr;}
      .steps-grid{grid-template-columns:1fr;}
      .intro__stats{grid-template-columns:1fr;}
      .footer__top{grid-template-columns:1fr;gap:28px;}
      .page-banner h1{font-size:28px;}
      .page-banner__lead{font-size:15px;}
      .guide-item__meta{white-space:normal;}
      .stat-card__num{font-size:30px;}
      .guide-item{padding:22px;}
    }

/* roulang page: article */
:root{
--c-primary:#0b1120;
--c-primary-2:#1e293b;
--c-accent:#f97316;
--c-accent-hover:#ea580c;
--c-blue:#3b82f6;
--c-bg:#f1f5f9;
--c-card:#ffffff;
--c-text:#0f172a;
--c-text-sub:#64748b;
--c-border:#e2e8f0;
--r-lg:20px;
--r-md:14px;
--r-sm:8px;
--sh-sm:0 2px 8px rgba(15,23,42,0.06);
--sh-md:0 10px 30px rgba(15,23,42,0.1);
--sh-lg:0 24px 48px rgba(15,23,42,0.14);
--space-section:84px;
--font:'Noto Sans SC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.75;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container--wide{max-width:1400px}
.section{padding:var(--space-section) 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.section-tag{display:inline-block;background:rgba(249,115,22,0.12);color:var(--c-accent);font-size:13px;font-weight:700;padding:6px 18px;border-radius:100px;letter-spacing:.5px;margin-bottom:14px}
.section-head h2{font-size:34px;font-weight:900;color:var(--c-text);line-height:1.3;letter-spacing:-.5px}
.section-head p{color:var(--c-text-sub);font-size:15px;margin-top:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:100px;font-weight:700;padding:13px 32px;height:48px;font-size:15px;cursor:pointer;transition:all .25s;white-space:nowrap}
.btn--primary{background:linear-gradient(135deg,#f97316,#fbbf24);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.35)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(249,115,22,.45);background:linear-gradient(135deg,#ea580c,#f97316)}
.btn--accent{background:linear-gradient(135deg,#f97316,#fb923c);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.35)}
.btn--accent:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(249,115,22,.45)}
.btn--dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(4px)}
.btn--dark:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 22px;font-size:14px}
.btn--lg{height:54px;padding:0 42px;font-size:17px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:5px 14px;border-radius:100px;letter-spacing:.3px}
.badge--accent{background:linear-gradient(135deg,#f97316,#fb923c);color:#fff}
.badge--ghost{background:rgba(255,255,255,.14);color:#fff}
.tag{display:inline-block;background:#f1f5f9;color:var(--c-text-sub);font-size:12px;font-weight:500;padding:5px 14px;border-radius:100px;margin:4px;transition:all .2s;cursor:default}
.tag:hover{background:#e2e8f0;color:var(--c-text)}
.header{position:sticky;top:0;z-index:100;background:rgba(11,17,32,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:900;color:#fff;letter-spacing:.3px}
.logo__icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#f97316,#fbbf24);display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.4)}
.nav{display:flex;align-items:center;gap:6px}
.nav__link{position:relative;padding:10px 18px;color:rgba(255,255,255,.72);font-size:14px;font-weight:500;border-radius:100px;transition:all .25s}
.nav__link::after{content:'';position:absolute;left:50%;bottom:2px;width:0;height:3px;border-radius:3px;background:var(--c-accent);transform:translateX(-50%);transition:width .3s}
.nav__link:hover{color:#fff}
.nav__link.active{color:#fff;background:rgba(255,255,255,.08)}
.nav__link.active::after{width:18px}
.header__actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;font-size:18px;cursor:pointer;align-items:center;justify-content:center;transition:all .25s}
.nav-toggle:hover{background:rgba(255,255,255,.16)}
.article-hero{position:relative;padding:80px 0 88px;background-size:cover;background-position:center;background-repeat:no-repeat;color:#fff}
.article-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,17,32,.94) 0%,rgba(11,17,32,.8) 55%,rgba(30,41,59,.68) 100%);pointer-events:none}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:28px}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb .bc-sep{opacity:.5}
.article-hero__badge{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.article-hero h1{font-size:42px;font-weight:900;line-height:1.25;letter-spacing:-1px;max-width:860px;margin-bottom:18px}
.article-hero__desc{font-size:16px;color:rgba(255,255,255,.82);max-width:740px;line-height:1.8;margin-bottom:26px}
.article-hero__meta{display:flex;align-items:center;gap:22px;font-size:13px;color:rgba(255,255,255,.66);flex-wrap:wrap}
.article-hero__meta i{margin-right:5px;color:rgba(249,115,22,.9)}
.article-main{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start}
.article-content{background:var(--c-card);border-radius:var(--r-lg);padding:48px;box-shadow:var(--sh-sm);border:1px solid rgba(226,232,240,.6)}
.article-content__cover{width:100%;border-radius:var(--r-md);margin-bottom:36px;object-fit:cover;aspect-ratio:16/7}
.article-content__intro{font-size:17px;color:var(--c-text-sub);border-left:4px solid var(--c-accent);padding:4px 0 4px 20px;margin-bottom:32px;line-height:1.9}
.article-content h2{font-size:26px;font-weight:800;color:var(--c-text);margin:40px 0 18px;padding-bottom:10px;border-bottom:2px solid #f1f5f9;letter-spacing:-.3px}
.article-content h3{font-size:20px;font-weight:700;color:var(--c-text);margin:30px 0 14px}
.article-content p{font-size:15.5px;line-height:2;color:#334155;margin-bottom:18px}
.article-content ul,.article-content ol{margin:0 0 22px 22px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{font-size:15.5px;line-height:1.9;color:#334155;margin-bottom:8px}
.article-content blockquote{background:#fff7ed;border-left:4px solid var(--c-accent);padding:18px 22px;border-radius:0 12px 12px 0;margin:26px 0;color:#9a3412;font-style:normal}
.article-content blockquote p{margin:0;color:#9a3412}
.article-content a{color:var(--c-accent);font-weight:500;border-bottom:1px solid rgba(249,115,22,.3)}
.article-content a:hover{border-bottom-color:var(--c-accent)}
.article-content img{border-radius:var(--r-md);margin:24px 0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--c-border);padding:12px 16px;text-align:left}
.article-content th{background:#f8fafc;font-weight:700}
.article-content code{background:#f1f5f9;border-radius:4px;padding:2px 8px;font-size:14px;color:#ea580c}
.article-side{display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--c-card);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-sm);border:1px solid rgba(226,232,240,.6)}
.side-card h3{font-size:16px;font-weight:700;color:var(--c-text);margin-bottom:18px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:'';width:4px;height:18px;border-radius:2px;background:linear-gradient(180deg,#f97316,#fbbf24)}
.side-card ul{list-style:none}
.side-card .info-list li{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid #f1f5f9;font-size:14px}
.side-card .info-list li:last-child{border-bottom:0}
.side-card .info-list span{color:var(--c-text-sub)}
.side-card .info-list span:first-child{color:var(--c-text);font-weight:600}
.side-list li{display:flex;flex-direction:column;gap:4px;padding:12px 0;border-bottom:1px solid #f1f5f9}
.side-list li:last-child{border-bottom:0}
.side-list a{font-size:14px;font-weight:600;color:var(--c-text);line-height:1.6;transition:color .2s}
.side-list a:hover{color:var(--c-accent)}
.side-list .meta{font-size:12px;color:var(--c-text-sub)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:6px}
.related-section{background:#fff;border-top:1px solid #eef2f7}
.card-grid{display:grid;gap:28px}
.card-grid--3{grid-template-columns:repeat(3,1fr)}
.post-card{background:var(--c-card);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);border:1px solid rgba(226,232,240,.6);transition:all .3s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg)}
.post-card__thumb{position:relative;height:190px;overflow:hidden}
.post-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.post-card:hover .post-card__thumb img{transform:scale(1.06)}
.post-card__thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(11,17,32,.35));pointer-events:none}
.post-card__cat{position:absolute;left:16px;bottom:14px;z-index:2;background:linear-gradient(135deg,#f97316,#fbbf24);color:#fff;font-size:12px;font-weight:700;padding:4px 14px;border-radius:100px;box-shadow:0 4px 12px rgba(249,115,22,.4)}
.post-card__body{padding:24px;display:flex;flex-direction:column;flex:1}
.post-card__body h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px;color:var(--c-text);transition:color .2s}
.post-card:hover .post-card__body h3{color:var(--c-accent)}
.post-card__body p{font-size:13.5px;color:var(--c-text-sub);line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__meta{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:14px;border-top:1px solid #f1f5f9;font-size:12.5px;color:var(--c-text-sub)}
.post-card__meta span:last-child{color:var(--c-accent);font-weight:600}
.post-card__meta i{font-size:11px}
.faq-section{background:var(--c-bg)}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--c-card);border-radius:var(--r-md);border:1px solid rgba(226,232,240,.7);overflow:hidden;transition:box-shadow .25s;box-shadow:var(--sh-sm)}
.faq-item:hover{box-shadow:var(--sh-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:22px 28px;font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:14px;color:var(--c-accent);transition:transform .3s;flex-shrink:0}
.faq-item[open] summary{color:var(--c-accent)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item__a{padding:0 28px 22px;font-size:14.5px;color:var(--c-text-sub);line-height:1.9}
.cta-section{position:relative;padding:0 0 80px}
.cta-box{position:relative;background:linear-gradient(135deg,#0b1120,#1e293b);border-radius:28px;padding:64px 48px;text-align:center;color:#fff;overflow:hidden;box-shadow:var(--sh-lg)}
.cta-box::before{content:'';position:absolute;top:-80px;right:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(249,115,22,.35),transparent 70%)}
.cta-box::after{content:'';position:absolute;bottom:-60px;left:-40px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(59,130,246,.25),transparent 70%)}
.cta-box h2{font-size:30px;font-weight:900;margin-bottom:12px;letter-spacing:-.5px}
.cta-box p{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:28px}
.cta-form{display:flex;gap:12px;max-width:520px;margin:0 auto;position:relative;z-index:2;flex-wrap:wrap;justify-content:center}
.cta-form input{flex:1;min-width:220px;height:50px;border-radius:100px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);padding:0 22px;color:#fff;font-size:14px;outline:none;transition:all .25s}
.cta-form input::placeholder{color:rgba(255,255,255,.5)}
.cta-form input:focus{border-color:var(--c-accent);background:rgba(255,255,255,.14);box-shadow:0 0 0 4px rgba(249,115,22,.25)}
.cta-form .btn{position:relative;z-index:2}
.footer{background:#0b1120;color:rgba(255,255,255,.72);padding:0;margin-top:0}
.footer__top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding:64px 0 48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer__brand .footer__logo{font-size:22px;font-weight:900;color:#fff;display:block;margin-bottom:14px}
.footer__brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.58);max-width:320px}
.footer__col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.5px}
.footer__col a,.footer__col span{display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;transition:all .2s}
.footer__col a:hover{color:#f97316;padding-left:4px}
.footer__bottom{padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}
.not-found{text-align:center;padding:60px 20px}
.not-found i{font-size:52px;color:var(--c-accent);margin-bottom:18px;display:block}
.not-found h2{font-size:26px;font-weight:800;color:var(--c-text);margin-bottom:10px}
.not-found p{color:var(--c-text-sub);font-size:14px;margin-bottom:28px}
@media (max-width:1024px){
:root{--space-section:64px}
.article-layout{grid-template-columns:1fr;gap:36px}
.card-grid--3{grid-template-columns:repeat(2,1fr)}
.footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.nav{position:fixed;top:72px;left:0;right:0;background:#0b1120;flex-direction:column;align-items:stretch;padding:16px 24px;border-bottom:1px solid rgba(255,255,255,.08);display:none}
.nav--open{display:flex;z-index:99}
.nav__link{display:block;text-align:center;padding:14px;font-size:15px}
.nav-toggle{display:flex}
.article-hero{padding:56px 0 64px}
.article-hero h1{font-size:30px}
.article-content{padding:32px 24px}
.article-content__cover{aspect-ratio:16/9}
.cta-box{padding:44px 24px}
.section-head h2{font-size:26px}
}
@media (max-width:520px){
.container{padding:0 18px}
.card-grid--3{grid-template-columns:1fr}
.footer__top{grid-template-columns:1fr;gap:32px}
.article-hero h1{font-size:24px}
.article-hero__desc{font-size:14px}
.article-content{padding:24px 16px}
.article-content h2{font-size:21px}
.breadcrumb{flex-wrap:wrap}
.header__actions .btn--sm{display:none}
.cta-form{flex-direction:column}
.cta-form input{width:100%;min-width:0}
.cta-box h2{font-size:24px}
}