/* roulang page: index */
:root {
  --primary: #FF4D1C;
  --primary-light: #FF8A00;
  --secondary: #7B2FF7;
  --accent: #FFB800;
  --gradient: linear-gradient(135deg, #FF4D1C 0%, #FF8A00 35%, #7B2FF7 100%);
  --bg: #FAF7F3;
  --card: #FFFFFF;
  --text-dark: #221C35;
  --text-body: #5F5A6A;
  --text-light: #9B94A8;
  --border: #E8E1D8;
  --dark-block: #201A2E;
  --radius-lg: clamp(1.25rem, 2.5vw, 2rem);
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(34, 28, 53, 0.06), 0 12px 40px rgba(255, 90, 31, 0.05);
  --shadow-hover: 0 8px 28px rgba(34, 28, 53, 0.1), 0 20px 50px rgba(255, 90, 31, 0.1);
  --spacing-section: clamp(4rem, 8vw, 7rem);
  --container-max: 1200px;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-dark);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

ul,
ol {
  list-style: none;
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

.section {
  padding: var(--spacing-section) 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.section-head p {
  color: var(--text-body);
  font-size: 1.05rem;
}

.section-tag {
  display: inline-block;
  background: rgba(255, 90, 31, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

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

.section-head.light p {
  color: rgba(255, 255, 255, 0.7);
}

.section-head.light .section-tag {
  background: rgba(255, 255, 255, 0.15);
  color: var(--accent);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 90, 31, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 90, 31, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.3);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(255, 90, 31, 0.4);
  outline-offset: 2px;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  backdrop-filter: blur(4px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.28);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-ghost:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

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

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.0625rem;
}

.btn-sm {
  padding: 0.6rem 1.5rem;
  font-size: 0.95rem;
}

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: 76px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.3);
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  position: relative;
  font-weight: 500;
  color: var(--text-dark);
  padding: 0.4rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 1.1rem;
  gap: 0.5rem;
  width: 200px;
  transition: all 0.3s ease;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.12);
}

.search-box i {
  color: var(--text-light);
  font-size: 0.85rem;
}

.search-box input {
  width: 100%;
  border: none;
  background: transparent;
  font-size: 0.88rem;
  color: var(--text-dark);
}

.search-box input::placeholder {
  color: var(--text-light);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-toggle:hover {
  background: rgba(255, 90, 31, 0.08);
  color: var(--primary);
}

/* Hero */
.hero {
  position: relative;
  min-height: 640px;
  height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 77, 28, 0.9) 0%, rgba(255, 138, 0, 0.75) 40%, rgba(123, 47, 247, 0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 3rem 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  padding: 0.4rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
  margin-bottom: 1.75rem;
}

.hero-badge i {
  color: var(--accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: 0.01em;
}

.hero-sub {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 2.25rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 3.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 0.6rem 1.6rem;
  backdrop-filter: blur(6px);
}

.stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* 玩法介绍 */
.play-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.play-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2.25rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.play-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 90, 31, 0.35);
}

.play-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 1.25rem;
  box-shadow: 0 6px 16px rgba(255, 90, 31, 0.25);
}

.play-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.play-card p {
  color: var(--text-body);
  font-size: 0.97rem;
  line-height: 1.7;
}

.play-tip {
  margin-top: 2.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: rgba(255, 184, 0, 0.1);
  border: 1px solid rgba(255, 184, 0, 0.3);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.play-tip i {
  color: var(--accent);
  font-size: 1.2rem;
  margin-top: 0.15rem;
}

.play-tip p {
  color: var(--text-body);
  font-size: 0.95rem;
}

/* 奖励预览 */
.rewards-section {
  background: var(--dark-block);
  color: #fff;
}

.rewards-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 3rem;
  align-items: center;
}

.rewards-intro h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.rewards-intro p {
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.rewards-intro ul {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 1.8rem;
}

.rewards-intro ul li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

.rewards-intro ul li i {
  color: var(--accent);
  font-size: 0.85rem;
}

.rewards-cards {
  display: grid;
  gap: 1.25rem;
}

.reward-card {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 1.25rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: all 0.3s ease;
}

.reward-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
  border-color: rgba(255, 184, 0, 0.4);
}

.reward-img {
  width: 120px;
  height: 90px;
  border-radius: 14px;
  object-fit: cover;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
}

.reward-info h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.reward-info p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
}

.reward-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255, 184, 0, 0.15);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  margin-top: 0.5rem;
}

.reward-link {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.reward-link:hover {
  color: #fff;
  transform: translateX(3px);
}

/* 任务进度 */
.steps-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 3rem;
}

.step-item {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.step-num {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.step-item h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-item p {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.65;
}

.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1.3rem;
  padding: 0 0.5rem;
}

.task-demo {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 2rem 2.25rem;
}

.task-demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.task-demo-head h4 {
  font-size: 1.15rem;
  font-weight: 700;
}

.task-demo-head span {
  font-size: 0.85rem;
  color: var(--text-light);
}

.task-row {
  display: grid;
  grid-template-columns: 40px 1fr minmax(160px, 320px) 70px;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--border);
}

.task-row:last-child {
  border-bottom: none;
}

.task-status {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.task-status.done {
  background: linear-gradient(135deg, #34C77B, #24A35D);
  color: #fff;
}

.task-status.active {
  background: var(--gradient);
  color: #fff;
}

.task-status.todo {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-light);
}

.task-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.progress-bar {
  height: 8px;
  background: var(--bg);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar span {
  display: block;
  height: 100%;
  background: var(--gradient);
  border-radius: 999px;
}

.task-percent {
  font-size: 0.9rem;
  font-weight: 700;
  text-align: right;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

/* 资讯动态 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.news-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 90, 31, 0.3);
}

.news-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.news-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255, 77, 28, 0.12), rgba(255, 138, 0, 0.12));
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 6px;
  padding: 0.2rem 0.7rem;
}

.news-time {
  font-size: 0.8rem;
  color: var(--text-light);
}

.news-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 0.6rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card p {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap 0.3s ease;
}

.news-card:hover .news-more {
  gap: 0.7rem;
}

.empty-state {
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  color: var(--text-light);
}

.empty-state i {
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
  opacity: 0.5;
}

.empty-state p {
  font-size: 1rem;
}

/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item.active {
  border-color: rgba(255, 90, 31, 0.4);
  box-shadow: var(--shadow-card);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.75rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  text-align: left;
  transition: color 0.3s ease;
}

.faq-question i {
  font-size: 0.85rem;
  color: var(--text-light);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question {
  color: var(--primary);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, padding 0.3s ease;
  padding: 0 1.75rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.5rem;
}

.faq-answer p {
  color: var(--text-body);
  line-height: 1.8;
  font-size: 0.96rem;
}

/* CTA */
.cta-section {
  padding: var(--spacing-section) 0;
}

.cta-box {
  background: var(--gradient);
  border-radius: calc(var(--radius-lg) * 1.3);
  padding: 4rem 2.5rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -30px;
  width: 140px;
  height: 140px;
  background: rgba(255, 184, 0, 0.15);
  border-radius: 50%;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* 页脚 */
.site-footer {
  background: var(--dark-block);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-logo .logo-icon {
  width: 36px;
  height: 36px;
  font-size: 0.75rem;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-col a,
.footer-col p {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.7rem;
  transition: all 0.25s ease;
}

.footer-col a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-bottom p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .domain-info {
  color: rgba(255, 255, 255, 0.35);
}

/* 移动端导航抽屉 */
.mobile-drawer {
  display: none;
}

/* 响应式 */
@media (max-width: 1200px) {
  .search-box {
    width: 160px;
  }
}

@media (max-width: 992px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 76px;
    right: 0;
    width: min(360px, 85vw);
    height: calc(100vh - 76px);
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 2rem 1.75rem;
    gap: 0.25rem;
    box-shadow: -20px 0 50px rgba(34, 28, 53, 0.1);
    border-left: 1px solid var(--border);
    z-index: 99;
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 0.9rem 0.75rem;
    border-radius: 12px;
    font-size: 1.05rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link:hover,
  .nav-link.active {
    background: rgba(255, 90, 31, 0.08);
    color: var(--primary);
  }

  .search-box {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .rewards-wrap {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

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

@media (max-width: 768px) {
  .hero {
    min-height: 560px;
    height: auto;
    padding: 3rem 0;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 3rem);
  }

  .hero-sub {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 0.6rem;
  }

  .stat-item {
    padding: 0.5rem 1.1rem;
    border-radius: 16px;
  }

  .stat-num {
    font-size: 1.35rem;
  }

  .stat-label {
    font-size: 0.78rem;
  }

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

  .reward-card {
    grid-template-columns: 90px 1fr;
  }

  .reward-img {
    width: 90px;
    height: 70px;
  }

  .reward-link {
    grid-column: 1 / -1;
    justify-self: end;
  }

  .steps-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .step-arrow {
    transform: rotate(90deg);
    padding: 0.5rem 0;
  }

  .task-row {
    grid-template-columns: 36px 1fr 60px;
  }

  .progress-bar {
    grid-column: 1 / -1;
    grid-row: 2;
  }

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

  .cta-box {
    padding: 3rem 1.75rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .btn-lg {
    padding: 0.9rem 1.75rem;
    font-size: 0.98rem;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .logo-text {
    font-size: 1.15rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .stat-item {
    flex-direction: column;
    gap: 0.2rem;
    text-align: center;
  }

  .play-card {
    padding: 1.75rem 1.4rem;
  }

  .reward-card {
    grid-template-columns: 1fr;
  }

  .reward-img {
    width: 100%;
    height: 120px;
  }

  .task-demo {
    padding: 1.5rem;
  }

  .task-row {
    grid-template-columns: 32px 1fr 50px;
    gap: 0.6rem;
  }

  .faq-question {
    padding: 1.1rem 1.25rem;
    font-size: 0.98rem;
  }

  .faq-answer {
    padding: 0 1.25rem;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* roulang page: article */
:root {
  --primary: #FF4D1C;
  --primary-dark: #E63E0F;
  --secondary: #7B2FF7;
  --accent: #FFB800;
  --bg: #FAF7F3;
  --card: #FFFFFF;
  --text: #221C35;
  --text-body: #5F5A6A;
  --border: #E8E1D8;
  --dark: #201A2E;
  --grad: linear-gradient(135deg, #FF4D1C 0%, #FF8A00 55%, #7B2FF7 100%);
  --shadow: 0 4px 20px rgba(34, 28, 53, 0.06), 0 12px 40px rgba(255, 90, 31, 0.05);
  --shadow-hover: 0 8px 30px rgba(34, 28, 53, 0.10), 0 18px 50px rgba(255, 90, 31, 0.12);
  --radius: 24px;
  --radius-sm: 14px;
  --transition: .3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

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

ul, ol {
  padding-left: 1.5em;
}

button, input {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Btn ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.875rem 2rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .3s ease;
  min-height: 44px;
}

.btn i {
  font-size: 0.9em;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 90, 31, 0.28);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 90, 31, 0.35);
}

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

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(255, 90, 31, 0.05);
  color: var(--primary);
}

.btn-light {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fff;
}

.btn-sm {
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
}

.btn:focus-visible {
  outline: 3px solid rgba(255, 90, 31, 0.3);
  outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(34, 28, 53, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--grad);
  color: #fff;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.28);
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  position: relative;
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-body);
  padding: 6px 2px;
  transition: color .25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: var(--primary);
  transition: width .3s ease;
}

.nav-link:hover {
  color: var(--primary);
}

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

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
  background: var(--grad);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box i {
  position: absolute;
  left: 16px;
  color: #9A91A8;
  font-size: 0.9rem;
}

.search-box input {
  width: 220px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #FAF8F5;
  padding: 0 18px 0 40px;
  font-size: 0.9rem;
  color: var(--text);
  transition: all .25s ease;
}

.search-box input::placeholder {
  color: #A79FB2;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.12);
  background: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all .3s ease;
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(255, 77, 28, 0.88) 0%, rgba(255, 138, 0, 0.78) 45%, rgba(123, 47, 247, 0.88) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 80px 0 72px;
  color: #fff;
}

.article-hero .container {
  max-width: 860px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 24px;
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: all .25s ease;
}

.breadcrumb a:hover {
  background: rgba(255, 255, 255, 0.28);
}

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.75rem;
}

.breadcrumb .current {
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-title {
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 6px 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.94);
}

.meta-item i {
  font-size: 0.82rem;
  color: var(--accent);
}

.meta-cat {
  background: rgba(255, 184, 0, 0.18);
  border-color: rgba(255, 184, 0, 0.3);
  color: #FFE2A0;
  font-weight: 500;
}

/* ===== Article Main ===== */
.article-main {
  padding: 56px 0 40px;
}

.article-container {
  max-width: 860px;
}

.article-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 48px 56px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(232, 225, 216, 0.6);
}

.article-content {
  font-size: 1.04rem;
  line-height: 2;
  color: #3F384C;
  word-break: break-word;
}

.article-content h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text);
  margin: 2em 0 0.8em;
  position: relative;
  padding-left: 20px;
  line-height: 1.4;
}

.article-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.32em;
  width: 6px;
  height: 1.15em;
  border-radius: 4px;
  background: var(--grad);
}

.article-content h3 {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.7em 0 0.7em;
  line-height: 1.5;
}

.article-content p {
  margin: 1.3em 0;
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease;
}

.article-content a:hover {
  border-bottom-color: var(--primary);
}

.article-content ul,
.article-content ol {
  margin: 1.3em 0;
  padding-left: 1.6em;
}

.article-content li {
  margin: 0.55em 0;
  line-height: 1.9;
}

.article-content li::marker {
  color: var(--primary);
}

.article-content blockquote {
  background: linear-gradient(135deg, rgba(255, 77, 28, 0.06), rgba(123, 47, 247, 0.07));
  border-left: 4px solid var(--primary);
  border-radius: 0 16px 16px 0;
  padding: 1.2em 1.6em;
  margin: 1.6em 0;
  color: var(--text-body);
  font-style: italic;
}

.article-content img {
  border-radius: 16px;
  margin: 1.8em auto;
  box-shadow: var(--shadow);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.95rem;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

.article-content th {
  background: var(--dark);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content td {
  padding: 11px 16px;
  border: 1px solid var(--border);
}

.article-content tr:nth-child(even) {
  background: #FAFAF6;
}

.article-content td:first-child,
.article-content th:first-child {
  border-left: none;
}

.article-content td:last-child,
.article-content th:last-child {
  border-right: none;
}

.not-found {
  text-align: center;
  padding: 80px 40px;
}

.not-found i {
  font-size: 3rem;
  color: #C9C0CF;
  margin-bottom: 20px;
}

.not-found h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.not-found p {
  color: var(--text-body);
  margin-bottom: 28px;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

.article-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

/* ===== Related ===== */
.related-section {
  padding: 72px 0;
  background: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 44px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}

.section-header p {
  color: var(--text-body);
  font-size: 1rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.related-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all .35s ease;
  display: block;
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 90, 31, 0.4);
}

.related-img {
  height: 190px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: block;
}

.related-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(34, 28, 53, 0.06));
}

.related-info {
  padding: 24px 26px 26px;
}

.related-info h3 {
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.45;
}

.related-info p {
  font-size: 0.92rem;
  color: var(--text-body);
  margin-bottom: 16px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.83rem;
  color: #968DA3;
}

.tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255, 90, 31, 0.14), rgba(255, 184, 0, 0.22));
  color: var(--primary);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 3px 12px;
  border-radius: 999px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.faq-item:hover {
  border-color: rgba(255, 90, 31, 0.3);
}

.faq-item.open {
  border-color: rgba(255, 90, 31, 0.4);
  box-shadow: var(--shadow);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  transition: background .3s ease;
}

.faq-q:hover {
  background: #FBF8F5;
}

.faq-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #F5F0EA;
  color: var(--text-body);
  transition: all .35s ease;
}

.faq-item.open .faq-icon {
  background: var(--grad);
  color: #fff;
  transform: rotate(135deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-item.open .faq-a {
  max-height: 300px;
}

.faq-a p {
  padding: 0 26px 22px;
  color: var(--text-body);
  font-size: 0.96rem;
  line-height: 1.85;
}

/* ===== CTA ===== */
.cta-banner {
  background: var(--grad);
  padding: 72px 24px;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.cta-inner p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 620px;
  margin: 0 auto 34px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: #B9B0C6;
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  width: 36px;
  height: 36px;
  font-size: 0.72rem;
  border-radius: 11px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: #B9B0C6;
  padding: 5px 0;
  transition: color .25s ease, transform .25s ease;
}

.footer-col a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-col p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  padding: 4px 0;
}

.footer-col p i {
  color: var(--accent);
  width: 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.85rem;
}

.domain-info {
  opacity: 0.75;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .main-nav {
    position: fixed;
    top: 76px;
    right: -320px;
    width: 280px;
    height: calc(100vh - 76px);
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 32px 28px;
    box-shadow: -10px 0 30px rgba(34, 28, 53, 0.12);
    transition: right .4s ease;
    z-index: 999;
  }

  .main-nav.open {
    right: 0;
  }

  .nav-link {
    font-size: 1.05rem;
    padding: 10px 0;
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

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

  .search-box {
    display: none;
  }

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

  .cta-banner {
    padding: 60px 20px;
  }
}

@media (max-width: 768px) {
  .article-hero {
    padding: 60px 0 52px;
  }

  .article-card {
    padding: 32px 24px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }

  .article-footer-nav {
    flex-direction: column;
  }

  .article-footer-nav .btn {
    width: 100%;
  }

  .cta-actions {
    flex-direction: column;
  }

  .cta-actions .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 18px;
  }

  .header-inner {
    height: 68px;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    font-size: 0.75rem;
  }

  .header-inner .btn-primary {
    display: none;
  }

  .article-hero {
    padding: 46px 0 42px;
  }

  .article-title {
    font-size: 1.55rem;
  }

  .breadcrumb {
    font-size: 0.8rem;
  }

  .article-card {
    padding: 26px 18px;
    border-radius: 18px;
  }

  .article-content {
    font-size: 0.98rem;
  }

  .article-content h2 {
    font-size: 1.4rem;
    padding-left: 14px;
  }

  .article-content h3 {
    font-size: 1.15rem;
  }

  .article-content blockquote {
    padding: 1em 1.2em;
  }

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

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }

  .faq-q {
    padding: 17px 20px;
    font-size: 0.97rem;
  }

  .faq-a p {
    padding: 0 20px 18px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #FF4D1C;
            --primary-light: #FF8A00;
            --secondary: #7B2FF7;
            --accent: #FFB800;
            --bg: #FAF7F3;
            --card-bg: #FFFFFF;
            --text-dark: #221C35;
            --text-body: #5F5A6A;
            --text-light: #8A8498;
            --border: #E8E1D8;
            --dark-bg: #201A2E;
            --radius-lg: clamp(1.25rem, 2.5vw, 2rem);
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(34, 28, 53, 0.06), 0 12px 40px rgba(255, 90, 31, 0.05);
            --shadow-hover: 0 8px 30px rgba(34, 28, 53, 0.10), 0 20px 60px rgba(255, 90, 31, 0.08);
            --gradient: linear-gradient(135deg, #FF4D1C 0%, #FF8A00 35%, #7B2FF7 100%);
            --gradient-soft: linear-gradient(135deg, rgba(255, 77, 28, 0.08), rgba(123, 47, 247, 0.08));
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --space: clamp(4rem, 8vw, 7rem);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            padding: 0.875rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            line-height: 1.4;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.28);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 90, 31, 0.38);
            filter: brightness(1.05);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.25);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(255, 90, 31, 0.3);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 0.55rem 1.35rem;
            font-size: 0.875rem;
        }

        .btn-lg {
            padding: 1rem 2.4rem;
            font-size: 1.05rem;
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 76px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 28px;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--gradient);
            color: #fff;
            font-weight: 800;
            font-size: 0.72rem;
            letter-spacing: 0.4px;
            box-shadow: 0 4px 12px rgba(255, 90, 31, 0.3);
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-dark);
            letter-spacing: 0.2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            margin-left: 8px;
        }

        .nav-link {
            position: relative;
            padding: 8px 16px;
            color: var(--text-dark);
            font-weight: 500;
            border-radius: 999px;
            transition: color 0.3s ease, background 0.3s ease;
            font-size: 0.95rem;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(255, 77, 28, 0.05);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-left: auto;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F5F2EE;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.5rem 1rem;
            width: 220px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.14);
        }

        .search-box i {
            color: var(--text-light);
            font-size: 0.875rem;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 0.875rem;
            color: var(--text-dark);
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
            border-radius: 8px;
        }

        .nav-toggle:hover {
            color: var(--primary);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding: 120px 0 64px;
            color: #fff;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 77, 28, 0.92), rgba(123, 47, 247, 0.9));
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.75);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.3s ease;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb i {
            font-size: 0.7rem;
        }

        .page-hero h1 {
            font-size: clamp(2.4rem, 4.5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #fff;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            max-width: 640px;
        }

        .hero-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .badge-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 128px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 20px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: background 0.3s ease;
        }

        .badge-item:hover {
            background: rgba(255, 255, 255, 0.18);
        }

        .badge-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .badge-label {
            font-size: 0.825rem;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 2px;
        }

        /* ===== Section 通用 ===== */
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto clamp(2rem, 4vw, 3rem);
        }

        .section-header.left {
            text-align: left;
            margin-left: 0;
        }

        .section-header.center {
            text-align: center;
            margin-left: auto;
        }

        .section-tag {
            display: inline-block;
            background: var(--gradient-soft);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }

        .section-tag.light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3.2vw, 2.6rem);
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.8;
        }

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

        .section-header.light p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== Intro ===== */
        .intro-section {
            padding: var(--space) 0;
        }

        .intro-wrapper {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: clamp(2.5rem, 5vw, 4.5rem);
            align-items: center;
        }

        .intro-text .section-tag {
            margin-bottom: 16px;
        }

        .intro-text h2 {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .intro-text p {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-body);
            margin-bottom: 24px;
        }

        .intro-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .intro-points li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 500;
            color: var(--text-dark);
            font-size: 0.95rem;
        }

        .intro-points li i {
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .intro-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
            aspect-ratio: 4 / 3;
            background: var(--gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .intro-visual:hover img {
            transform: scale(1.02);
        }

        /* ===== Mode ===== */
        .mode-section {
            padding: var(--space) 0;
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .mode-list {
            display: flex;
            flex-direction: column;
            gap: clamp(3rem, 6vw, 5rem);
        }

        .mode-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(2rem, 4.5vw, 4rem);
            align-items: center;
        }

        .mode-row.reverse .mode-media {
            order: 2;
        }

        .mode-row.reverse .mode-content {
            order: 1;
        }

        .mode-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 16 / 10;
            background: var(--gradient-soft);
            position: relative;
        }

        .mode-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .mode-media:hover img {
            transform: scale(1.03);
        }

        .mode-content .mode-tag {
            display: inline-block;
            background: var(--gradient);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .mode-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .mode-content p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 18px;
        }

        .mode-content ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mode-content ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.925rem;
            color: var(--text-body);
        }

        .mode-content ul li::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        /* ===== Scenario ===== */
        .scenario-section {
            padding: var(--space) 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: clamp(2rem, 4vw, 3rem);
        }

        .scenario-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .scenario-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 90, 31, 0.35);
        }

        .scenario-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .scenario-num {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        .scenario-top i {
            font-size: 1.8rem;
            color: var(--secondary);
            background: var(--gradient-soft);
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
        }

        .scenario-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .scenario-card>p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 16px;
        }

        .scenario-card ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
            border-top: 1px dashed var(--border);
            padding-top: 14px;
        }

        .scenario-card ul li {
            font-size: 0.875rem;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .scenario-card ul li i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        /* ===== Process ===== */
        .process-section {
            padding: var(--space) 0;
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 77, 28, 0.25), transparent 70%);
            border-radius: 50%;
        }

        .process-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(123, 47, 247, 0.25), transparent 70%);
            border-radius: 50%;
        }

        .process-section .container {
            position: relative;
            z-index: 1;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: clamp(2rem, 4vw, 3rem);
        }

        .step-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            transition: background 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .step-num {
            position: absolute;
            top: 14px;
            left: 16px;
            font-size: 0.85rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.35);
            font-variant-numeric: tabular-nums;
        }

        .step-icon {
            width: 58px;
            height: 58px;
            border-radius: 18px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 90, 31, 0.3);
        }

        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== Reward ===== */
        .reward-section {
            padding: var(--space) 0;
        }

        .reward-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: clamp(2rem, 4vw, 3rem);
        }

        .reward-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .reward-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .reward-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .reward-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .reward-card p {
            font-size: 0.875rem;
            line-height: 1.75;
            color: var(--text-body);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space) 0;
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .faq-item.open {
            border-color: rgba(255, 90, 31, 0.35);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            transition: color 0.3s ease;
        }

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

        .faq-toggle-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            background: var(--gradient);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text-body);
            border-top: 1px dashed var(--border);
            padding-top: 14px;
            margin: 0 24px 20px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space) 0;
        }

        .cta-banner {
            background: var(--gradient);
            border-radius: var(--radius-lg);
            padding: clamp(2.5rem, 5vw, 4rem);
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(255, 90, 31, 0.25);
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -40px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: 8%;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-banner h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            filter: none;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding-top: clamp(3rem, 6vw, 4.5rem);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 2.5rem;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 1.1rem;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        .footer-col a {
            display: block;
            padding: 5px 0;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.3s ease, padding-left 0.3s ease;
            font-size: 0.9rem;
        }

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

        .footer-col p {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 5px 0;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        .footer-col p i {
            width: 16px;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .domain-info {
            font-variant-numeric: tabular-nums;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: 76px;
                right: -300px;
                width: 280px;
                height: calc(100vh - 76px);
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
                transition: right 0.3s ease;
                box-shadow: -6px 0 24px rgba(34, 28, 53, 0.1);
                z-index: 99;
                gap: 4px;
            }

            .main-nav.open {
                right: 0;
            }

            .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: 12px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background: var(--gradient-soft);
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .search-box {
                width: 40px;
                padding: 0;
                justify-content: center;
                background: transparent;
                border: none;
            }

            .search-box input {
                display: none;
            }

            .search-box i {
                font-size: 1.15rem;
                color: var(--text-dark);
            }

            .intro-wrapper,
            .mode-row {
                grid-template-columns: 1fr;
            }

            .mode-row.reverse .mode-media {
                order: 0;
            }

            .mode-row.reverse .mode-content {
                order: 0;
            }

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

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

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

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

        @media (max-width: 768px) {
            .page-hero {
                min-height: 380px;
                padding: 100px 0 48px;
            }

            .hero-badges {
                gap: 10px;
            }

            .badge-item {
                min-width: 100px;
                padding: 12px 16px;
            }

            .badge-num {
                font-size: 1.35rem;
            }

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

            .process-steps {
                grid-template-columns: 1fr;
            }

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

            .cta-banner {
                padding: 2rem 1.5rem;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 20px;
            }

            .logo-text {
                font-size: 1rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 0.65rem;
            }

            .header-actions {
                gap: 10px;
            }

            .header-actions .btn-sm {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

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

            .badge-item {
                flex-direction: row;
                justify-content: space-between;
                min-width: 0;
                width: 100%;
                padding: 12px 18px;
            }

            .intro-visual {
                aspect-ratio: 4 / 3;
            }

            .mode-media {
                aspect-ratio: 4 / 3;
            }

            .mode-content h3 {
                font-size: 1.3rem;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }