/* ========================================
   造梦共享WiFi - 介绍页面样式
   ======================================== */

/* --- CSS 变量 --- */
:root {
  --primary: #4F6EF7;
  --primary-dark: #3A54C9;
  --primary-light: #7B93FA;
  --secondary: #FF6B35;
  --accent: #00C9A7;
  --accent-light: #33D4B8;
  --dark: #1A1D2E;
  --dark-soft: #2A2D3E;
  --gray-900: #212529;
  --gray-700: #495057;
  --gray-500: #6C757D;
  --gray-300: #DEE2E6;
  --gray-100: #F8F9FA;
  --white: #FFFFFF;
  --gradient-primary: linear-gradient(135deg, #4F6EF7 0%, #7B93FA 100%);
  --gradient-dark: linear-gradient(135deg, #1A1D2E 0%, #2A2D3E 100%);
  --gradient-hero: linear-gradient(135deg, #0F1129 0%, #1E2243 40%, #2D3260 100%);
  --gradient-accent: linear-gradient(135deg, #FF6B35 0%, #FF8F5E 100%);
  --gradient-green: linear-gradient(135deg, #00C9A7 0%, #33D4B8 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 30px rgba(79, 110, 247, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

/* --- 全局重置与基础 --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  color: var(--gray-700);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* --- 通用容器 --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- 通用区块 --- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background: var(--gray-100);
}

.section-dark {
  background: var(--gradient-dark);
  color: var(--white);
}

/* --- 区块标题 --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-badge--primary {
  background: rgba(79, 110, 247, 0.1);
  color: var(--primary);
}

.section-badge--accent {
  background: rgba(0, 201, 167, 0.1);
  color: var(--accent);
}

.section-badge--secondary {
  background: rgba(255, 107, 53, 0.1);
  color: var(--secondary);
}

.section-badge--white {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.section-title {
  font-size: 40px;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: var(--white);
}

.section-subtitle {
  font-size: 18px;
  color: var(--gray-500);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.65);
}

/* ========================================
   1. Hero 区域
   ======================================== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: 80px;
}

.hero__bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  pointer-events: none;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(79, 110, 247, 0.15) 0%, transparent 70%),
              radial-gradient(ellipse at 80% 20%, rgba(0, 201, 167, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

/* 浮动装饰圆 */
.hero__deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__deco--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(79, 110, 247, 0.12) 0%, transparent 70%);
  top: -150px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero__deco--2 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 201, 167, 0.1) 0%, transparent 70%);
  bottom: -80px;
  left: -80px;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__deco--3 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
  top: 30%;
  right: 15%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero__content {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero__text {
  flex: 1;
  max-width: 600px;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(79, 110, 247, 0.15);
  border: 1px solid rgba(79, 110, 247, 0.25);
  border-radius: 50px;
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}

.hero__label svg {
  width: 16px;
  height: 16px;
}

.hero__title {
  font-size: 56px;
  font-weight: 900;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero__title span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.9;
  margin-bottom: 40px;
}

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

.hero__image {
  flex: 1;
  max-width: 520px;
  position: relative;
}

.hero__image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__image-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: float 5s ease-in-out infinite;
}

.hero__image-badge-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  flex-shrink: 0;
}

.hero__image-badge-text {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.4;
}

.hero__image-badge-text strong {
  display: block;
  font-size: 18px;
  color: var(--gray-900);
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(79, 110, 247, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(79, 110, 247, 0.5);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 107, 53, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.btn-green {
  background: var(--gradient-green);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0, 201, 167, 0.3);
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0, 201, 167, 0.45);
}

/* ========================================
   2. 介绍区域
   ======================================== */
.intro {
  padding: 100px 0;
  background: var(--white);
}

.intro__content {
  display: flex;
  align-items: center;
  gap: 64px;
}

.intro__image {
  flex: 1;
  max-width: 500px;
  position: relative;
}

.intro__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.intro__image-float {
  position: absolute;
  top: -20px;
  right: -30px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 16px 22px;
  box-shadow: var(--shadow-lg);
  animation: float 5s ease-in-out infinite;
}

.intro__image-float-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-green);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 22px;
  margin-bottom: 8px;
}

.intro__image-float strong {
  display: block;
  font-size: 24px;
  color: var(--accent);
}

.intro__image-float span {
  font-size: 13px;
  color: var(--gray-500);
}

.intro__text {
  flex: 1;
}

.intro__text .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.intro__text .section-subtitle {
  text-align: left;
  margin: 0 0 32px 0;
}

.intro__highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.intro__highlight {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--gray-100);
  transition: all 0.3s ease;
}

.intro__highlight:hover {
  background: rgba(79, 110, 247, 0.06);
  transform: translateY(-2px);
}

.intro__highlight-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  flex-shrink: 0;
}

.intro__highlight-icon--green {
  background: var(--gradient-green);
}

.intro__highlight-icon--orange {
  background: var(--gradient-accent);
}

.intro__highlight-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.intro__highlight-text p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ========================================
   3. 使用流程
   ======================================== */
.steps {
  padding: 100px 0;
  background: var(--gray-100);
}

.steps__image {
  text-align: center;
  margin-bottom: 56px;
}

.steps__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-width: 900px;
  margin: 0 auto;
}

.steps__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.steps__list::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 15%;
  right: 15%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 16px rgba(79, 110, 247, 0.3);
  position: relative;
}

.step__number::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px dashed rgba(79, 110, 247, 0.25);
}

.step__icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.step__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.step__desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ========================================
   4. 双重收益
   ======================================== */
.dual-income {
  padding: 100px 0;
  background: var(--white);
}

.dual-income__content {
  display: flex;
  align-items: center;
  gap: 64px;
}

.dual-income__text {
  flex: 1;
}

.dual-income__text .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.dual-income__text > .section-subtitle {
  text-align: left;
  margin: 0 0 36px 0;
}

.dual-income__cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dual-income__card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-300);
  transition: all 0.3s ease;
  cursor: default;
}

.dual-income__card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.dual-income__card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}

.dual-income__card-icon--ad {
  background: rgba(79, 110, 247, 0.1);
  color: var(--primary);
}

.dual-income__card-icon--cps {
  background: rgba(0, 201, 167, 0.1);
  color: var(--accent);
}

.dual-income__card-body h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.dual-income__card-body p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 8px;
}

.dual-income__card-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

.dual-income__card-tag--ad {
  background: rgba(79, 110, 247, 0.1);
  color: var(--primary);
}

.dual-income__card-tag--cps {
  background: rgba(0, 201, 167, 0.1);
  color: var(--accent);
}

.dual-income__image {
  flex: 1;
  max-width: 480px;
}

.dual-income__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ========================================
   5. 核心功能
   ======================================== */
.features {
  padding: 100px 0;
  background: var(--gray-100);
}

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

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid transparent;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(79, 110, 247, 0.1);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card__icon {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--white);
  margin: 0 auto 20px;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-card__icon {
  transform: scale(1.1);
}

.feature-card__icon--green {
  background: var(--gradient-green);
}

.feature-card__icon--orange {
  background: var(--gradient-accent);
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ========================================
   5.5 对比传统WiFi贴
   ======================================== */
.compare {
  padding: 100px 0;
  background: var(--white);
}

.compare__table {
  max-width: 880px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
}

.compare__header,
.compare__row {
  display: grid;
  grid-template-columns: 140px 1fr 1fr;
}

.compare__header {
  background: var(--gradient-dark);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
}

.compare__col {
  padding: 16px 24px;
  display: flex;
  align-items: center;
}

.compare__header .compare__col {
  padding: 18px 24px;
  font-size: 14px;
}

.compare__col--label {
  font-weight: 600;
  color: var(--gray-900);
  background: var(--gray-100);
  font-size: 14px;
}

.compare__header .compare__col--label {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
}

.compare__col--old {
  color: var(--gray-500);
  font-size: 14px;
  border-left: 1px solid var(--gray-300);
}

.compare__col--new {
  color: var(--primary);
  font-size: 14px;
  border-left: 1px solid var(--gray-300);
}

.compare__col--new strong {
  color: var(--primary-dark);
}

.compare__row {
  border-top: 1px solid var(--gray-300);
  transition: background 0.2s ease;
}

.compare__row:hover {
  background: rgba(79, 110, 247, 0.02);
}

.compare__row--highlight {
  background: rgba(79, 110, 247, 0.04);
}

.compare__row--highlight .compare__col--new {
  font-size: 15px;
}

.compare__row--highlight .compare__col--old {
  color: var(--gray-500);
  text-decoration: line-through;
  opacity: 0.6;
}

.compare__header .compare__col--new {
  background: rgba(0, 201, 167, 0.15);
  color: var(--accent-light);
}

.compare__header .compare__col--old {
  background: rgba(255, 255, 255, 0.05);
}

/* ========================================
   5.8 合作伙伴
   ======================================== */
.partners {
  padding: 80px 0;
  background: var(--gray-100);
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.partner-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  border: 1px solid var(--gray-300);
  transition: all 0.3s ease;
}

.partner-item:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.partner-item--more {
  border-style: dashed;
  background: transparent;
}

.partner-item--more:hover {
  border-color: var(--primary);
  background: rgba(79, 110, 247, 0.04);
}

.partner-item__icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.partner-item__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.partner-item__type {
  font-size: 11px;
  color: var(--gray-500);
}

/* ========================================
   6. 应用场景
   ======================================== */
.scenarios {
  padding: 100px 0;
  background: var(--gradient-dark);
  color: var(--white);
}

.scenarios__image {
  text-align: center;
  margin-bottom: 56px;
}

.scenarios__image img {
  border-radius: var(--radius-lg);
  max-width: 1000px;
  margin: 0 auto;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.scenarios__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scenario-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.scenario-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

.scenario-card__icon {
  font-size: 40px;
  margin-bottom: 14px;
}

.scenario-card__title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.scenario-card__desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}

/* ========================================
   7. 收益计算器
   ======================================== */
.calculator {
  padding: 100px 0;
  background: var(--white);
}

.calculator__content {
  display: flex;
  align-items: stretch;
  gap: 48px;
  background: var(--gradient-dark);
  border-radius: var(--radius-xl);
  padding: 56px;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

.calculator__left {
  flex: 1;
}

.calculator__left h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}

.calculator__left p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 32px;
  line-height: 1.7;
}

.calculator__form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.calculator__field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.calculator__field input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
}

.calculator__field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(79, 110, 247, 0.4);
}

.calculator__field-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  margin-top: 6px;
}

.calculator__right {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.calculator__result {
  text-align: center;
  padding: 40px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
}

.calculator__result-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 12px;
}

.calculator__result-amount {
  font-size: 56px;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 8px;
}

.calculator__result-unit {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 24px;
}

.calculator__result-breakdown {
  display: flex;
  justify-content: center;
  gap: 32px;
}

.calculator__result-item {
  text-align: center;
}

.calculator__result-item-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-light);
}

.calculator__result-item-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 2px;
}

/* ========================================
   8. 平台优势
   ======================================== */
.advantages {
  padding: 100px 0;
  background: var(--gray-100);
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.advantage-card {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-300);
  transition: all 0.3s ease;
}

.advantage-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.advantage-card__number {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-primary);
  color: var(--white);
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.advantage-card__body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.advantage-card__body p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ========================================
   9. 数据统计
   ======================================== */
.stats {
  padding: 80px 0;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.stats__bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
  pointer-events: none;
}

.stats .container {
  position: relative;
  z-index: 2;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.stat__value {
  font-size: 44px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 6px;
  line-height: 1;
}

.stat__value span {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-light);
}

.stat__label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}

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

.faq__list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(79, 110, 247, 0.1);
}

.faq-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--white);
  transition: background 0.3s ease;
}

.faq-item__header:hover {
  background: var(--gray-100);
}

.faq-item__question {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.faq-item__toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-item__toggle {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-item__toggle svg {
  width: 16px;
  height: 16px;
}

.faq-item__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.active .faq-item__body {
  max-height: 300px;
}

.faq-item__answer {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ========================================
   11. CTA
   ======================================== */
.cta {
  padding: 100px 0;
  background: var(--gradient-primary);
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta__deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.cta__deco--1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  top: -150px;
  right: -100px;
}

.cta__deco--2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  bottom: -100px;
  left: -80px;
}

.cta .container {
  position: relative;
  z-index: 2;
}

.cta__title {
  font-size: 40px;
  font-weight: 900;
  margin-bottom: 16px;
}

.cta__desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

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

.btn-white {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.2);
}

.btn-ghost-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .hero__content {
    flex-direction: column;
    text-align: center;
  }

  .hero__text {
    max-width: 100%;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__image {
    max-width: 400px;
  }

  .hero__image-badge {
    left: 50%;
    transform: translateX(-50%);
  }

  .intro__content {
    flex-direction: column;
  }

  .intro__image {
    max-width: 100%;
  }

  .dual-income__content {
    flex-direction: column;
  }

  .dual-income__image {
    max-width: 100%;
  }

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

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

  .steps__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .steps__list::before {
    display: none;
  }

  .calculator__content {
    flex-direction: column;
    padding: 36px;
  }

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

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .partners__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .compare__table {
    max-width: 100%;
  }

  .compare__header,
  .compare__row {
    grid-template-columns: 120px 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .section-subtitle {
    font-size: 15px;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

  .hero__title {
    font-size: 34px;
  }

  .hero__desc {
    font-size: 15px;
  }

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

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

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

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

  .calculator__result-amount {
    font-size: 40px;
  }

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

  .cta__title {
    font-size: 28px;
  }

  .cta__desc {
    font-size: 15px;
  }

  .partners__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .compare__header,
  .compare__row {
    grid-template-columns: 100px 1fr 1fr;
  }

  .compare__col {
    padding: 12px 14px;
    font-size: 13px;
  }
}

/* ========================================
   滚动动画
   ======================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ========================================
   额外视觉增强
   ======================================== */

/* 选中高亮色 */
::selection {
  background: rgba(79, 110, 247, 0.2);
  color: var(--primary-dark);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Hero 渐变文字动画 */
.hero__title span {
  display: inline-block;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* 按钮涟漪效果 */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* Feature card 光标跟随光晕 */
.feature-card {
  position: relative;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: var(--mouse-y, 50%);
  left: var(--mouse-x, 50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 110, 247, 0.06) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover::after {
  opacity: 1;
}

/* 分割线装饰 */
.section-divider {
  width: 60px;
  height: 4px;
  border-radius: 2px;
  background: var(--gradient-primary);
  margin: 0 auto 24px;
}

/* 比较表行左侧色带 */
.compare__col--label {
  position: relative;
}

.compare__col--label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  border-radius: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.compare__row:hover .compare__col--label::before {
  opacity: 1;
}

/* 合作伙伴卡片悬浮图标放大 */
.partner-item:hover .partner-item__icon {
  transform: scale(1.15);
  transition: transform 0.3s ease;
}

/* 收益计算器结果卡片脉冲光晕 */
.calculator__result {
  position: relative;
}

.calculator__result::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.3), rgba(79, 110, 247, 0.3), rgba(0, 201, 167, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: borderGlow 4s ease-in-out infinite;
}

@keyframes borderGlow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}