/* ============================================
   优云套利 宣传落地页 - 东方现代金融风格
   色系: 玉石绿 · 暖金 · 米白 · 淡墨
   ============================================ */

/* ====== CSS 变量 ====== */
:root {
  /* 底色 */
  --cream:       #FAF6EF;
  --cream-warm:  #F3EDE2;
  --white-warm:  #FFFCF5;

  /* 墨色 */
  --ink:         #2D2926;
  --ink-medium:  #5A5550;
  --ink-light:   #8C8680;
  --ink-faint:   #B5AFA8;
  --ink-border:  rgba(45, 41, 38, 0.06);

  /* 玉石绿 */
  --jade:        #5C8A6F;
  --jade-light:  #7EA892;
  --jade-dark:   #3D6B53;
  --jade-glow:   rgba(92, 138, 111, 0.12);

  /* 暖金 */
  --gold:        #C4A265;
  --gold-light:  #D9BD85;
  --gold-dark:   #A8884A;
  --gold-glow:   rgba(196, 162, 101, 0.15);

  /* 玻璃质感 */
  --glass-bg:    rgba(255, 252, 245, 0.36);
  --glass-border:rgba(255, 255, 255, 0.46);
  --glass-blur:  24px;

  /* 圆角 */
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-xl:   32px;

  /* 字体 */
  --font-sans: 'Inter', -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;

  /* 过渡 */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #F7F0E4;
}

body {
  position: relative;
  isolation: isolate;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: transparent;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  pointer-events: none;
}

body::before {
  inset: -18px;
  z-index: -2;
  background: url('assets/liushui-shengcai-bg.webp') center / cover no-repeat;
  transform: scale(1.04);
}

body::after {
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(255, 252, 245, 0.46) 0%, rgba(255, 252, 245, 0.24) 42%, rgba(255, 252, 245, 0.08) 100%),
    linear-gradient(180deg, rgba(250, 246, 239, 0.34) 0%, rgba(250, 246, 239, 0.18) 46%, rgba(250, 246, 239, 0.28) 100%);
}

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

#strategies,
#data,
#contact {
  scroll-margin-top: 72px;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

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

.hide-mobile { display: inline; }

/* ====== 容器 ====== */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ====== 导航栏 ====== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
  background: transparent;
}

.nav.scrolled {
  background: rgba(255, 252, 245, 0.34);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.36);
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--ink);
  transition: opacity 0.2s;
}

.nav-logo:hover { opacity: 0.75; }

.nav-logo-img {
  display: block;
  width: 156px;
  height: auto;
}

.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--jade), var(--gold));
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--ink-medium);
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--jade);
  transition: width 0.3s var(--ease-out);
}

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

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

.language-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 5px 28px 5px 13px;
  border: 1px solid rgba(92, 138, 111, 0.18);
  border-radius: 999px;
  background: rgba(255, 252, 245, 0.34);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
  backdrop-filter: blur(14px) saturate(128%);
  -webkit-backdrop-filter: blur(14px) saturate(128%);
}

.language-switcher::after {
  content: '';
  position: absolute;
  right: 12px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--jade-dark);
  border-bottom: 1.5px solid var(--jade-dark);
  transform: translateY(-68%) rotate(45deg);
  pointer-events: none;
}

.language-label {
  color: var(--ink-light);
  font-size: 0.78rem;
  line-height: 1;
  white-space: nowrap;
}

.language-select {
  width: 96px;
  min-width: 86px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-medium);
  font: 500 0.875rem/1 var(--font-sans);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.language-select:focus {
  outline: none;
}

.language-select:focus-visible {
  outline: 2px solid rgba(92, 138, 111, 0.36);
  outline-offset: 4px;
}

.language-select option {
  color: var(--ink);
  background: var(--white-warm);
}

.btn.btn-nav {
  font-size: 0.875rem;
  line-height: 1;
  min-height: 34px;
  padding: 7px 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  box-shadow: 0 6px 16px rgba(196, 162, 101, 0.2);
}

.btn.btn-nav:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  box-shadow: 0 8px 20px rgba(196, 162, 101, 0.26);
  transform: translateY(-1px);
}

.section-cta {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.btn-section-cta {
  min-height: 42px;
  padding: 10px 32px;
  color: #fff;
  font-size: 0.9375rem;
  line-height: 1;
  background: linear-gradient(135deg, rgba(168, 136, 74, 0.9), rgba(196, 162, 101, 0.86));
  border: 1px solid rgba(255, 255, 255, 0.34);
  box-shadow: 0 10px 26px rgba(196, 162, 101, 0.18);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
}

.btn-section-cta:hover {
  color: #fff;
  background: linear-gradient(135deg, rgba(196, 162, 101, 0.94), rgba(217, 189, 133, 0.9));
  box-shadow: 0 14px 34px rgba(196, 162, 101, 0.24);
  transform: translateY(-2px);
}

/* 汉堡菜单 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ====== 按钮 ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn-primary {
  background: linear-gradient(135deg, var(--jade-dark), var(--jade));
  color: #fff;
  box-shadow: 0 8px 24px var(--jade-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--jade), var(--jade-light));
  box-shadow: 0 12px 32px rgba(92, 138, 111, 0.2);
  transform: translateY(-2px);
}

.btn-secondary {
  border: 1.5px solid var(--gold);
  color: var(--gold-dark);
  background: transparent;
}

.btn-secondary:hover {
  background: var(--gold);
  color: #fff;
  box-shadow: 0 8px 24px var(--gold-glow);
  transform: translateY(-2px);
}

/* 按钮光泽扫过效果 */
.btn-shimmer {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
  z-index: -1;
  transition: left 0.6s ease;
}

.btn:hover .btn-shimmer {
  left: 100%;
}

/* ====== Hero ====== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: transparent;
}

.hero::before {
  display: none;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.34;
  mix-blend-mode: soft-light;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* 浮动光圈 */
.hero-orb {
  position: absolute;
  display: none;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}

.hero-orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--jade-glow), transparent 70%);
  top: 10%;
  left: -5%;
  animation: orbFloat1 18s ease-in-out infinite;
}

.hero-orb-2 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, var(--gold-glow), transparent 70%);
  top: 20%;
  right: -8%;
  animation: orbFloat2 22s ease-in-out infinite;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(92,138,111,0.08), transparent 70%);
  bottom: 15%;
  left: 30%;
  animation: orbFloat3 20s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, 30px) scale(1.1); }
  66% { transform: translate(-20px, -20px) scale(0.95); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(-30px, 40px) scale(1.05); }
  70% { transform: translate(20px, -30px) scale(0.9); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, -25px) scale(1.08); }
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 24px;
  max-width: 720px;
}

.hero-title {
  font-size: clamp(3.2rem, 10vw, 6.5rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.15;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--jade-dark) 0%, var(--jade) 35%, var(--gold) 75%, var(--gold-light) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-size: clamp(0.8125rem, 1.8vw, 1.125rem);
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 28px;
}

.hero-tagline {
  font-size: clamp(1.125rem, 3vw, 1.625rem);
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.hero-desc {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-weight: 300;
  color: var(--ink-light);
  line-height: 1.85;
  max-width: 560px;
  margin: 0 auto 44px;
}

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

/* Hero 入场动画 */
.hero-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.hero-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 滚动提示 */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--ink-faint);
  opacity: 0;
  transition: opacity 1s ease 1.8s;
}

.hero-scroll.visible {
  opacity: 1;
}

.hero-scroll-text {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  font-weight: 300;
}

.hero-scroll-icon {
  animation: scrollBounce 2.2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ====== 章节通用 ====== */
.section-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding-top: 80px;
  padding-bottom: 0;
}

.ornament-line {
  display: block;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
}

.ornament-diamond {
  font-size: 0.75rem;
  color: var(--gold);
  line-height: 1;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  font-weight: 300;
  text-align: center;
  color: var(--ink-light);
  margin-bottom: 56px;
}

/* ====== Scroll Reveal 动画 ====== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.40s; }

/* ====== 核心策略 ====== */
.strategies {
  padding: 0 0 74px;
  background:
    linear-gradient(180deg, #FBF8F1 0%, #F6F7EF 44%, #F3EDE2 100%);
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.strategies::before {
  content: '';
  position: absolute;
  inset: 138px 0 92px;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.82), rgba(255,255,255,0.28) 58%, rgba(243,237,226,0.3)),
    repeating-linear-gradient(90deg, rgba(92,138,111,0.045) 0 1px, transparent 1px 136px);
}

.strategies::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 230px;
  z-index: -1;
  height: 360px;
  background:
    linear-gradient(90deg, transparent 0%, rgba(92,138,111,0.06) 18%, rgba(196,162,101,0.07) 50%, rgba(92,138,111,0.05) 82%, transparent 100%),
    repeating-linear-gradient(0deg, transparent 0 44px, rgba(45,41,38,0.035) 45px, transparent 46px);
  mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
  pointer-events: none;
}

.strategies .container {
  position: relative;
}

.strategies .section-title {
  max-width: none;
  text-align: center;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: normal;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.strategies .section-subtitle {
  max-width: none;
  text-align: center;
  margin: 0 0 56px;
}

.strategy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  grid-template-rows: repeat(2, minmax(184px, auto));
  gap: 18px;
  position: relative;
  margin-top: 40px;
}

.strategy-grid::before {
  content: '';
  position: absolute;
  inset: 34px -24px -26px 84px;
  z-index: 0;
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.42), rgba(255,255,255,0.16)),
    linear-gradient(180deg, rgba(92,138,111,0.06), rgba(196,162,101,0.04));
  border: 1px solid rgba(255,255,255,0.46);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.7),
    0 26px 70px rgba(92,138,111,0.08);
  pointer-events: none;
}

.strategy-card {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 184px;
  padding: 24px;
  border-radius: 30px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.58), rgba(255,255,255,0.2)),
    rgba(255, 252, 245, 0.32);
  backdrop-filter: blur(24px) saturate(165%) contrast(1.03);
  -webkit-backdrop-filter: blur(24px) saturate(165%) contrast(1.03);
  border: 1px solid rgba(255,255,255,0.66);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    inset 0 -1px 0 rgba(255,255,255,0.18),
    0 22px 56px rgba(92, 138, 111, 0.12);
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out), border-color 0.45s ease, background 0.45s ease;
  cursor: default;
  overflow: hidden;
}

.strategy-card:nth-child(1) {
  grid-column: 1;
  grid-row: 1 / span 2;
  min-height: 386px;
  padding: 32px 34px 30px;
}

.strategy-card:nth-child(1)::before {
  content: '';
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 260px;
  height: 260px;
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.42), rgba(255,255,255,0.08)),
    repeating-linear-gradient(135deg, rgba(92,138,111,0.1) 0 1px, transparent 1px 14px);
  border: 1px solid rgba(255,255,255,0.42);
  transform: rotate(-8deg);
  pointer-events: none;
}

.strategy-card:nth-child(2) {
  grid-column: 2;
  grid-row: 1;
}

.strategy-card:nth-child(3) {
  grid-column: 2;
  grid-row: 2;
}

.strategy-card:hover {
  transform: translateY(-6px);
  background:
    linear-gradient(145deg, rgba(255,255,255,0.7), rgba(255,255,255,0.26)),
    rgba(255, 252, 245, 0.42);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.96),
    0 28px 70px rgba(92, 138, 111, 0.15),
    0 8px 24px rgba(45, 41, 38, 0.05);
  border-color: rgba(255, 255, 255, 0.82);
}

.card-accent {
  position: absolute;
  top: 0;
  left: 32px;
  right: 32px;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background:
    linear-gradient(90deg, transparent, rgba(92,138,111,0.42), rgba(217,189,133,0.42), transparent);
  opacity: 0.82;
  transition: opacity 0.4s ease;
}

.strategy-card:hover .card-accent {
  opacity: 0.95;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(255,255,255,0.72), rgba(255,255,255,0.22)),
    rgba(92,138,111,0.08);
  border: 1px solid rgba(255,255,255,0.72);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.8),
    0 12px 30px rgba(92,138,111,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--jade);
  transition: background 0.35s ease, transform 0.35s var(--ease-spring);
}

.strategy-card:nth-child(1) .card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
}

.strategy-card:nth-child(n+2) {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  align-content: center;
}

.strategy-card:nth-child(n+2) .card-icon {
  grid-row: 1 / span 4;
  margin: 0;
}

.strategy-card:hover .card-icon {
  background:
    linear-gradient(145deg, rgba(255,255,255,0.86), rgba(255,255,255,0.3)),
    rgba(92,138,111,0.12);
  color: var(--jade-dark);
  transform: scale(1.05);
}

.card-title {
  position: relative;
  z-index: 1;
  font-size: clamp(1.375rem, 2vw, 1.75rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.strategy-card:nth-child(1) .card-title {
  max-width: 8em;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.04;
  letter-spacing: 0;
  margin-bottom: 20px;
}

.strategy-card:nth-child(n+2) .card-title,
.strategy-card:nth-child(n+2) .card-desc,
.strategy-card:nth-child(n+2) .card-yield,
.strategy-card:nth-child(n+2) .card-tag {
  grid-column: 2;
}

.strategy-card:nth-child(n+2) .card-title {
  margin-bottom: 8px;
}

.strategy-card:nth-child(n+2) .card-desc {
  display: -webkit-box;
  margin-bottom: 14px;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.card-desc {
  position: relative;
  z-index: 1;
  font-size: 0.9375rem;
  font-weight: 300;
  color: rgba(45, 41, 38, 0.58);
  line-height: 1.75;
  margin-bottom: 16px;
}

.strategy-card:nth-child(1) .card-desc {
  max-width: 30em;
}

.card-yield {
  position: relative;
  z-index: 1;
  margin-top: auto;
  border-top: 1px solid rgba(45, 41, 38, 0.07);
  padding-top: 16px;
  margin-bottom: 16px;
}

.strategy-card:nth-child(1) .card-yield {
  margin-top: 48px;
}

.strategy-card:nth-child(n+2) .card-yield {
  margin: 0 0 14px;
  padding: 14px 0 0;
  border-top: 1px solid rgba(45, 41, 38, 0.07);
  border-left: 0;
}

.card-yield-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--ink-faint);
  margin-bottom: 6px;
}

.card-yield-value {
  display: block;
  font-size: clamp(1.85rem, 3vw, 2.625rem);
  line-height: 1;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
  white-space: nowrap;
}

.strategy-card:nth-child(1) .card-yield-value {
  font-size: clamp(2.55rem, 4.8vw, 3.7rem);
}

.strategy-card:nth-child(n+2) .card-yield-value {
  font-size: clamp(1.75rem, 2.4vw, 2.2rem);
}

.card-tag {
  position: relative;
  z-index: 1;
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--jade-dark);
  background: rgba(255, 255, 255, 0.34);
  border: 1px solid rgba(255,255,255,0.55);
  padding: 4px 14px;
  border-radius: 100px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.72);
}

.strategy-card:nth-child(n+2) .card-tag {
  margin: 0;
}

/* ====== 数据信任区 ====== */
.strategy-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: none;
  gap: 18px;
  padding: 28px;
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.44), rgba(255,255,255,0.18)),
    linear-gradient(180deg, rgba(92,138,111,0.055), rgba(196,162,101,0.04));
  border: 1px solid rgba(255,255,255,0.48);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.72),
    0 26px 70px rgba(92,138,111,0.08);
}

.strategy-grid::before,
.strategy-card:nth-child(1)::before {
  display: none;
}

.strategy-card,
.strategy-card:nth-child(1),
.strategy-card:nth-child(2),
.strategy-card:nth-child(3) {
  grid-column: auto;
  grid-row: auto;
  min-height: 352px;
  padding: 34px 28px 30px;
  border-radius: 26px;
}

.strategy-card:nth-child(n+2) {
  display: flex;
  grid-template-columns: none;
  column-gap: 0;
  align-content: stretch;
}

.strategy-card:nth-child(1) .card-icon,
.strategy-card:nth-child(n+2) .card-icon {
  width: 56px;
  height: 56px;
  grid-row: auto;
  margin: 0 0 24px;
}

.strategy-card:nth-child(1) .card-title,
.strategy-card:nth-child(n+2) .card-title,
.card-title {
  max-width: none;
  font-size: clamp(1.45rem, 2.2vw, 1.8rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}

.strategy-card:nth-child(n+2) .card-title,
.strategy-card:nth-child(n+2) .card-desc,
.strategy-card:nth-child(n+2) .card-yield,
.strategy-card:nth-child(n+2) .card-tag {
  grid-column: auto;
}

.strategy-card:nth-child(n+2) .card-desc,
.card-desc {
  display: -webkit-box;
  min-height: 5.25em;
  margin-bottom: 18px;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.strategy-card:nth-child(1) .card-desc {
  max-width: none;
}

.strategy-card:nth-child(1) .card-yield,
.strategy-card:nth-child(n+2) .card-yield,
.card-yield {
  margin: auto 0 16px;
  padding: 16px 0 0;
  border-top: 1px solid rgba(45, 41, 38, 0.07);
}

.strategy-card:nth-child(1) .card-yield-value,
.strategy-card:nth-child(n+2) .card-yield-value,
.card-yield-value {
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
}

.data-trust {
  padding: 0 0 118px;
  background:
    linear-gradient(180deg, #F3EDE2 0%, #F6F7EF 48%, #FBF8F1 100%);
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.data-trust::before {
  content: '';
  position: absolute;
  inset: 76px 0 78px;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.42), rgba(255,255,255,0.18) 58%, rgba(243,237,226,0.18)),
    repeating-linear-gradient(90deg, rgba(92,138,111,0.04) 0 1px, transparent 1px 136px);
}

.data-trust::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 128px;
  z-index: -1;
  height: 300px;
  background:
    linear-gradient(90deg, transparent 0%, rgba(92,138,111,0.045) 20%, rgba(196,162,101,0.06) 50%, rgba(92,138,111,0.045) 80%, transparent 100%),
    repeating-linear-gradient(0deg, transparent 0 44px, rgba(45,41,38,0.03) 45px, transparent 46px);
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  pointer-events: none;
}

.data-trust .container {
  position: relative;
}

.data-trust .section-title {
  max-width: 560px;
  text-align: left;
  font-size: clamp(2.35rem, 5vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: 18px;
}

.data-trust .section-subtitle {
  max-width: 420px;
  text-align: left;
  margin: 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
  margin-top: 40px;
  padding: 28px;
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.44), rgba(255,255,255,0.18)),
    linear-gradient(180deg, rgba(92,138,111,0.055), rgba(196,162,101,0.04));
  border: 1px solid rgba(255,255,255,0.48);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.72),
    0 26px 70px rgba(92,138,111,0.08);
}

.metric-card {
  position: relative;
  text-align: center;
  min-height: 168px;
  padding: 34px 18px 30px;
  border-radius: 26px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.62), rgba(255,255,255,0.22)),
    rgba(255, 252, 245, 0.32);
  backdrop-filter: blur(24px) saturate(165%) contrast(1.03);
  -webkit-backdrop-filter: blur(24px) saturate(165%) contrast(1.03);
  border: 1px solid rgba(255,255,255,0.66);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    inset 0 -1px 0 rgba(255,255,255,0.18),
    0 18px 44px rgba(92, 138, 111, 0.09);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s var(--ease-out);
  overflow: hidden;
}

.metric-card:hover {
  background:
    linear-gradient(145deg, rgba(255,255,255,0.74), rgba(255,255,255,0.3)),
    rgba(255, 252, 245, 0.42);
  border-color: rgba(255, 255, 255, 0.82);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.96),
    0 24px 58px rgba(92, 138, 111, 0.13),
    0 8px 24px rgba(45, 41, 38, 0.04);
  transform: translateY(-5px);
}

.metric-deco {
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background:
    linear-gradient(90deg, transparent, rgba(92,138,111,0.42), rgba(217,189,133,0.42), transparent);
  opacity: 0.82;
}

.metric-value {
  font-size: clamp(1.7rem, 3.6vw, 2.35rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  transition: color 0.4s ease, text-shadow 0.4s ease;
}

.metric-card:hover .metric-value {
  color: var(--jade-dark);
  text-shadow: 0 0 22px rgba(92, 138, 111, 0.12);
}

.metric-unit {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--ink-faint);
  margin-bottom: 12px;
  min-height: 1.2em;
}

.metric-label {
  font-size: 0.875rem;
  font-weight: 400;
  color: rgba(45, 41, 38, 0.58);
}

.data-disclaimer {
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--ink-faint);
  margin: 28px 0 0;
  line-height: 1.6;
}

/* ====== 底部 CTA ====== */
/* 鎭㈠鎴浘鎸囧畾鐨勭瓥鐣?鏁版嵁缁勫悎鐗堝紡 */
.strategy-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: none;
  gap: 20px;
  margin-top: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.strategy-grid::before {
  display: none;
}

.strategy-card,
.strategy-card:nth-child(1),
.strategy-card:nth-child(2),
.strategy-card:nth-child(3) {
  grid-column: auto;
  grid-row: auto;
  display: flex;
  min-height: 312px;
  padding: 36px 28px 32px;
  border-radius: var(--radius-lg);
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: none;
}

.strategy-card:nth-child(1)::before {
  display: none;
}

.strategy-card:nth-child(1) .card-icon,
.strategy-card:nth-child(n+2) .card-icon {
  width: 56px;
  height: 56px;
  grid-row: auto;
  margin: 0 auto 22px;
}

.strategy-card:nth-child(1) .card-title,
.strategy-card:nth-child(n+2) .card-title,
.card-title {
  max-width: none;
  font-size: clamp(1.35rem, 2vw, 1.65rem);
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}

.strategy-card:nth-child(n+2) .card-title,
.strategy-card:nth-child(n+2) .card-desc,
.strategy-card:nth-child(n+2) .card-yield,
.strategy-card:nth-child(n+2) .card-tag {
  grid-column: auto;
}

.strategy-card:nth-child(1) .card-desc,
.strategy-card:nth-child(n+2) .card-desc,
.card-desc {
  display: -webkit-box;
  max-width: none;
  min-height: 5.25em;
  margin-bottom: 18px;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.strategy-card:nth-child(1) .card-yield,
.strategy-card:nth-child(n+2) .card-yield,
.card-yield {
  width: 100%;
  margin: auto 0 16px;
  padding: 16px 0 0;
  border-top: 1px solid rgba(45, 41, 38, 0.07);
}

.strategy-card:nth-child(1) .card-yield-value,
.strategy-card:nth-child(n+2) .card-yield-value,
.card-yield-value {
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
}

.strategy-card:nth-child(1) .card-tag,
.strategy-card:nth-child(n+2) .card-tag,
.card-tag {
  align-self: center;
}

.card-accent {
  left: 50%;
  right: auto;
  width: 42px;
  height: 3px;
  transform: translateX(-50%);
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--jade), var(--gold));
  opacity: 1;
}

.strategy-card .card-title,
.strategy-card .card-desc,
.strategy-card .card-yield,
.strategy-card .card-tag {
  align-self: center;
  width: 100%;
  text-align: center;
}

.strategy-card .card-title {
  display: block;
}

.strategy-card .card-tag {
  width: auto;
}

.strategy-card:hover {
  border-color: rgba(196, 162, 101, 0.25);
  box-shadow: 0 16px 48px rgba(196, 162, 101, 0.08);
  transform: translateY(-4px);
}

.data-trust {
  padding: 100px 0 80px;
  background: var(--cream-warm);
}

.data-trust::before {
  inset: auto;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  z-index: 0;
  background: linear-gradient(90deg, transparent 5%, var(--gold-glow) 50%, transparent 95%);
}

.data-trust::after {
  display: none;
}

.data-trust .section-title {
  max-width: none;
  text-align: center;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: normal;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.data-trust .section-subtitle {
  max-width: none;
  text-align: center;
  margin: 0 0 56px;
}

.metrics-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.metric-card {
  min-height: 0;
  padding: 36px 20px 32px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: none;
}

.metric-card:hover {
  border-color: rgba(196, 162, 101, 0.25);
  box-shadow: 0 16px 48px rgba(196, 162, 101, 0.08);
  transform: translateY(-4px);
}

.metric-deco {
  left: 50%;
  right: auto;
  width: 40px;
  height: 3px;
  transform: translateX(-50%);
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--jade), var(--gold));
}

.metric-value {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: 4px;
}

.metric-card:hover .metric-value {
  color: var(--ink);
  text-shadow: 0 0 24px var(--gold-glow);
}

.metric-unit {
  margin-bottom: 8px;
}

.metric-label {
  color: var(--ink-light);
}

.data-disclaimer {
  text-align: center;
  margin: 40px 0 0;
}

.data-trust .section-cta {
  margin-top: 34px;
}

.footer-cta {
  position: relative;
  padding: 100px 0 48px;
  background:
    linear-gradient(125deg, rgba(92, 138, 111, 0.12) 0%, rgba(255, 255, 255, 0) 38%),
    linear-gradient(180deg, #FAF6EF 0%, #F7F4EC 56%, #EEF4ED 100%);
  color: var(--ink);
  overflow: hidden;
}

.footer-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0) 42%, rgba(196, 162, 101, 0.08)),
    repeating-linear-gradient(90deg, rgba(92, 138, 111, 0.05) 0 1px, transparent 1px 136px);
  opacity: 0.55;
  pointer-events: none;
}

.footer-fade {
  position: absolute;
  top: -80px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(180deg, rgba(250, 246, 239, 0), #FAF6EF);
  pointer-events: none;
}

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

.footer-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  color: var(--ink);
  background: none;
  -webkit-text-fill-color: currentColor;
  animation: none;
}

.footer-desc {
  font-size: 1rem;
  font-weight: 300;
  text-align: center;
  color: var(--ink-medium);
  margin-bottom: 56px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.footer-primary-cta {
  margin-top: -28px;
  margin-bottom: 48px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 72px;
}

.contact-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.36)),
    rgba(255, 255, 255, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.78),
    0 18px 46px rgba(61, 107, 83, 0.08);
  backdrop-filter: blur(18px) saturate(132%);
  -webkit-backdrop-filter: blur(18px) saturate(132%);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s var(--ease-out);
  cursor: default;
  text-decoration: none;
  display: block;
}

a.contact-card {
  cursor: pointer;
}

.contact-card:hover {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.52)),
    rgba(255, 255, 255, 0.54);
  border-color: rgba(126, 168, 146, 0.34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.86),
    0 22px 54px rgba(61, 107, 83, 0.13);
  transform: translateY(-4px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(92, 138, 111, 0.12), rgba(196, 162, 101, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--jade-dark);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.76);
  transition: background 0.35s ease;
}

.contact-card:hover .contact-icon {
  background: linear-gradient(135deg, rgba(92, 138, 111, 0.18), rgba(196, 162, 101, 0.16));
}

.contact-platform {
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--ink-light);
  margin-bottom: 6px;
}

.contact-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  word-break: break-all;
}

.contact-hint {
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--ink-faint);
}

/* 底部品牌 & 版权 */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(45, 41, 38, 0.08);
}

.footer-brand {
  display: flex;
  align-items: center;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--ink-medium);
}

.footer-logo-img {
  display: block;
  width: 128px;
  height: auto;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.footer-copy {
  font-size: 0.8125rem;
  font-weight: 300;
  color: rgba(45, 41, 38, 0.42);
}

/* ====== Global fixed-background glass skin ====== */
.strategies,
.data-trust,
.footer-cta {
  background: rgba(255, 252, 245, 0.16);
  backdrop-filter: blur(2px) saturate(118%);
  -webkit-backdrop-filter: blur(2px) saturate(118%);
}

.strategies {
  background:
    linear-gradient(180deg, rgba(255, 252, 245, 0.54) 0%, rgba(246, 247, 239, 0.42) 48%, rgba(243, 237, 226, 0.46) 100%);
}

.strategies::before,
.strategies::after,
.data-trust::before,
.data-trust::after,
.footer-cta::before {
  display: none;
}

.footer-fade {
  background: linear-gradient(180deg, rgba(255, 252, 245, 0), rgba(255, 252, 245, 0.14));
}

.strategy-card,
.strategy-card:nth-child(1),
.strategy-card:nth-child(2),
.strategy-card:nth-child(3),
.metric-card,
.contact-card {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.48), rgba(255, 255, 255, 0.16)),
    rgba(255, 252, 245, 0.18);
  border-color: rgba(255, 255, 255, 0.52);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.78),
    0 18px 54px rgba(61, 107, 83, 0.08);
  backdrop-filter: blur(24px) saturate(145%) contrast(1.02);
  -webkit-backdrop-filter: blur(24px) saturate(145%) contrast(1.02);
}

.strategy-card:hover,
.metric-card:hover,
.contact-card:hover {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.22)),
    rgba(255, 252, 245, 0.22);
  border-color: rgba(255, 255, 255, 0.66);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.86),
    0 22px 62px rgba(61, 107, 83, 0.12);
}

.card-icon,
.contact-icon {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.14)),
    rgba(92, 138, 111, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.52);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}

.card-tag {
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(255, 255, 255, 0.44);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(61, 107, 83, 0.9), rgba(92, 138, 111, 0.86));
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
}

.btn-secondary {
  background: rgba(255, 252, 245, 0.24);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
}

.btn.btn-nav {
  background: linear-gradient(135deg, rgba(168, 136, 74, 0.88), rgba(196, 162, 101, 0.84));
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
}

.footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 1025px) and (max-width: 1440px) {
  #strategies {
    scroll-margin-top: 78px;
  }

  .strategies {
    padding-bottom: 52px;
  }

  .strategies .section-ornament {
    padding-top: 54px;
  }

  .strategies .section-title {
    font-size: clamp(1.9rem, 3.8vw, 2.55rem);
    margin-bottom: 8px;
  }

  .strategies .section-subtitle {
    font-size: 0.95rem;
    margin-bottom: 34px;
  }

  .strategy-grid {
    gap: 18px;
  }

  .strategy-card,
  .strategy-card:nth-child(1),
  .strategy-card:nth-child(2),
  .strategy-card:nth-child(3) {
    min-height: 326px;
    padding: 28px 24px 24px;
  }

  .strategy-card:nth-child(1) .card-icon,
  .strategy-card:nth-child(n+2) .card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
  }

  .strategy-card:nth-child(1) .card-title,
  .strategy-card:nth-child(n+2) .card-title,
  .card-title {
    font-size: clamp(1.25rem, 1.8vw, 1.48rem);
    margin-bottom: 10px;
  }

  .strategy-card:nth-child(1) .card-desc,
  .strategy-card:nth-child(n+2) .card-desc,
  .card-desc {
    min-height: 3.3em;
    margin-bottom: 14px;
    line-height: 1.62;
    -webkit-line-clamp: 2;
  }

  .strategy-card:nth-child(1) .card-yield,
  .strategy-card:nth-child(n+2) .card-yield,
  .card-yield {
    padding-top: 12px;
    margin-bottom: 12px;
  }

  .card-yield-label {
    margin-bottom: 4px;
  }

  .strategy-card:nth-child(1) .card-yield-value,
  .strategy-card:nth-child(n+2) .card-yield-value,
  .card-yield-value {
    font-size: clamp(1.6rem, 2.2vw, 2.05rem);
  }
}

@media (min-width: 1025px) and (max-height: 720px) {
  .strategies {
    padding-bottom: 40px;
  }

  .strategies .section-ornament {
    padding-top: 40px;
  }

  .strategies .section-title {
    font-size: clamp(1.75rem, 3.3vw, 2.25rem);
    margin-bottom: 6px;
  }

  .strategies .section-subtitle {
    margin-bottom: 24px;
  }

  .strategy-card,
  .strategy-card:nth-child(1),
  .strategy-card:nth-child(2),
  .strategy-card:nth-child(3) {
    min-height: 292px;
    padding: 24px 22px 20px;
  }

  .strategy-card:nth-child(1) .card-icon,
  .strategy-card:nth-child(n+2) .card-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 12px;
  }

  .strategy-card:nth-child(1) .card-title,
  .strategy-card:nth-child(n+2) .card-title,
  .card-title {
    font-size: clamp(1.18rem, 1.7vw, 1.38rem);
    margin-bottom: 8px;
  }

  .strategy-card:nth-child(1) .card-desc,
  .strategy-card:nth-child(n+2) .card-desc,
  .card-desc {
    min-height: 3em;
    margin-bottom: 12px;
  }

  .strategy-card:nth-child(1) .card-yield,
  .strategy-card:nth-child(n+2) .card-yield,
  .card-yield {
    padding-top: 10px;
    margin-bottom: 10px;
  }

  .strategy-card:nth-child(1) .card-yield-value,
  .strategy-card:nth-child(n+2) .card-yield-value,
  .card-yield-value {
    font-size: clamp(1.48rem, 2vw, 1.9rem);
  }

  .card-tag {
    padding: 3px 12px;
    font-size: 0.68rem;
  }
}


/* ============================================
   响应式布局
   ============================================ */

@media (max-width: 1024px) {
  .nav-links {
    gap: 18px;
  }

  .language-switcher {
    padding-left: 11px;
  }

  .language-label {
    display: none;
  }

  .strategy-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 0;
    padding: 0;
    min-height: 0;
    border-radius: 0;
  }

  .strategy-card {
    grid-column: auto;
    grid-row: auto;
    min-height: 0;
    padding: 32px 24px 28px;
  }

  .strategy-grid::before {
    display: none;
  }

  .strategy-card:nth-child(1) {
    grid-column: auto;
    grid-row: auto;
    margin-top: 0;
    padding: 32px 24px 28px;
  }

  .strategy-card:nth-child(2),
  .strategy-card:nth-child(3) {
    grid-column: auto;
    grid-row: auto;
    margin-top: 0;
    margin-left: 0;
    margin-right: 0;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
    border-radius: 30px;
  }
}

@media (max-width: 768px) {
  .hide-mobile { display: none; }

  .container {
    padding: 0 18px;
  }

  .nav {
    padding: 0 18px;
  }

  .nav-inner {
    height: 62px;
  }

  .nav-logo-img {
    width: min(142px, 52vw);
  }

  /* 导航 */
  .nav-links {
    position: fixed;
    top: 62px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 252, 245, 0.46);
    backdrop-filter: blur(24px) saturate(145%);
    -webkit-backdrop-filter: blur(24px) saturate(145%);
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--ink-border);
    opacity: 0;
    transform: translateY(-12px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-link {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--ink-border);
  }

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

  .language-switcher {
    width: 100%;
    justify-content: space-between;
    min-height: 44px;
    margin-top: 12px;
    padding: 10px 34px 10px 14px;
    border-radius: 16px;
  }

  .language-label {
    display: block;
    font-size: 0.95rem;
    color: var(--ink-medium);
  }

  .language-select {
    flex: 1;
    width: auto;
    min-width: 0;
    text-align: right;
    font-size: 0.95rem;
  }

  .btn-nav {
    margin-top: 16px;
    width: 100%;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero */
  .hero {
    align-items: center;
  }

  .hero-content {
    width: 100%;
    padding: 74px 20px 104px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 240px;
    min-height: 54px;
    padding: 13px 22px;
    font-size: 0.95rem;
    line-height: 1.1;
    white-space: nowrap;
  }

  .section-cta {
    margin-top: 24px;
  }

  .btn-section-cta {
    width: 100%;
    max-width: 238px;
    min-height: 46px;
  }

  .footer-primary-cta {
    margin-top: -28px;
    margin-bottom: 38px;
  }

  .hero-desc {
    max-width: 100%;
    margin-bottom: 28px;
    line-height: 1.75;
    overflow-wrap: anywhere;
  }

  .hero-scroll {
    display: none;
  }

  .hero-orb {
    opacity: 0.2;
  }

  .hero-orb-1 { width: 250px; height: 250px; }
  .hero-orb-2 { width: 200px; height: 200px; }
  .hero-orb-3 { width: 180px; height: 180px; }

  /* 策略 */
  .section-ornament {
    padding-top: 60px;
  }

  .strategy-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0;
    border-radius: 0;
  }

  .strategy-card {
    padding: 28px 24px 24px;
    border-radius: 22px;
  }

  .strategy-card:nth-child(n+2) {
    display: flex;
  }

  .strategy-card,
  .strategy-card:nth-child(1),
  .strategy-card:nth-child(2),
  .strategy-card:nth-child(3) {
    grid-column: auto;
    min-height: 0;
    padding: 28px 24px 24px;
  }

  .strategy-card:nth-child(n+2) .card-yield {
    border-left: 0;
    border-top: 1px solid rgba(45, 41, 38, 0.07);
    padding: 16px 0 0;
    margin-top: auto;
    margin-bottom: 16px;
  }

  .strategy-card:nth-child(n+2) .card-yield-value {
    font-size: clamp(1.95rem, 8vw, 2.7rem);
  }

  .strategy-card:nth-child(n+2) .card-tag {
    margin: 0;
  }

  .strategy-card:nth-child(1) {
    padding: 28px 24px 24px;
  }

  .strategy-card:nth-child(1) .card-title {
    font-size: 1.35rem;
  }

  .strategy-card:nth-child(n+2) .card-title {
    font-size: 1.35rem;
  }

  .strategy-card:nth-child(1) .card-yield-value,
  .strategy-card:nth-child(n+2) .card-yield-value {
    font-size: clamp(1.55rem, 7vw, 2rem);
  }

  .card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 18px;
  }

  .card-title {
    font-size: 1.35rem;
  }

  /* 数据 */
  .data-trust {
    padding: 0 0 72px;
  }

  .data-trust .section-title,
  .strategies .section-title {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }

  .data-trust .section-subtitle,
  .strategies .section-subtitle {
    max-width: 100%;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 28px;
    padding: 0 2px;
    border-radius: 24px;
  }

  .metric-card {
    min-width: 0;
    min-height: 136px;
    padding: 26px 8px 22px;
    border-radius: 20px;
  }

  .metric-value {
    max-width: 100%;
    overflow: visible;
    font-size: clamp(1rem, 5.2vw, 1.32rem);
    line-height: 1.12;
    letter-spacing: -0.015em;
    white-space: nowrap;
  }

  .metric-unit {
    margin-bottom: 7px;
    font-size: 0.75rem;
  }

  .metric-label {
    max-width: 5.5em;
    margin: 0 auto;
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .data-disclaimer {
    margin-top: 22px;
  }

  /* 联系 */
  .footer-cta {
    padding: 80px 0 36px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 48px;
  }

  .contact-card {
    padding: 24px 20px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .section-subtitle {
    margin-bottom: 40px;
  }
}

@media (max-width: 380px) {
  .hero-title {
    font-size: clamp(2.35rem, 13vw, 2.8rem);
  }

  .hero-subtitle {
    margin-bottom: 20px;
    letter-spacing: 0.24em;
  }

  .hero-tagline {
    margin-bottom: 12px;
  }

  .hero-content {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-actions .btn {
    max-width: 238px;
    min-height: 52px;
  }

  .metrics-grid {
    gap: 10px;
    padding: 0;
  }

  .metric-card {
    min-height: 130px;
    padding: 24px 7px 20px;
    border-radius: 18px;
  }

  .metric-value {
    font-size: clamp(0.95rem, 5vw, 1.12rem);
    letter-spacing: -0.02em;
  }
}

/* ====== 无障碍 / 动效偏好 ====== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero-reveal,
  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-scroll {
    opacity: 1;
  }
}