/* ===================================================================
   CBPayments 官网样式  ·  移动优先 H5
   =================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --bg: #070B1A;
  --bg-2: #0B1024;
  --bg-3: #0F1530;
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .16);

  --text: #EAEEFB;
  --text-2: #A6B0CF;
  --text-3: #6F7CA3;

  --brand: #6366F1;
  --brand-2: #818CF8;
  --cyan: #22D3EE;
  --mint: #34D399;

  --grad: linear-gradient(120deg, #818CF8 0%, #22D3EE 100%);
  --grad-btn: linear-gradient(120deg, #6366F1 0%, #22D3EE 130%);

  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 18px 50px rgba(3, 6, 20, .55);
  --shadow-glow: 0 14px 40px rgba(99, 102, 241, .38);

  --pad: 20px;
  --max: 1200px;
  --nav-h: 64px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans SC", -apple-system,
          BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4 { margin: 0; line-height: 1.3; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: rgba(99, 102, 241, .45); color: #fff; }

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { position: relative; padding: 68px 0; }
.section--alt { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform .25s, box-shadow .25s, background .25s, border-color .25s, opacity .25s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:active { transform: scale(.97); }

.btn--primary {
  color: #fff;
  background: var(--grad-btn);
  box-shadow: var(--shadow-glow);
}
.btn--outline {
  color: var(--text);
  border-color: var(--line-2);
  background: rgba(255, 255, 255, .04);
  backdrop-filter: blur(8px);
}
.btn--ghost { color: var(--text-2); }
.btn--sm { padding: 9px 18px; font-size: 13px; }
.btn--lg { padding: 15px 30px; font-size: 15px; }

@media (hover: hover) {
  .btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 46px rgba(99, 102, 241, .5); }
  .btn--outline:hover { border-color: var(--brand-2); background: rgba(129, 140, 248, .12); }
  .btn--ghost:hover { color: var(--text); }
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7, 11, 26, .82);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand { display: inline-flex; align-items: center; gap: 9px; margin-right: auto; }
.brand__mark { width: 32px; height: 32px; flex: none; }
.brand__mark svg { width: 100%; height: 100%; }
.brand__text { font-size: 17px; font-weight: 800; letter-spacing: -.02em; }
.brand__text span { font-weight: 500; color: var(--text-2); }

.nav__links { display: none; }
.nav__actions { display: none; }

/* ---------- 语言切换 ---------- */
.lang {
  display: inline-flex;
  flex: none;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
}
.lang a {
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-3);
  white-space: nowrap;
  transition: color .25s, background .25s;
}
.lang a.is-active {
  color: #fff;
  background: var(--grad-btn);
  /* 手机上隐藏当前语言，只留另一种语言的入口，避免导航栏在 320px 小屏溢出 */
  display: none;
}
.lang a:not(.is-active) { color: var(--text-2); }
@media (hover: hover) {
  .lang a:not(.is-active):hover { color: var(--text); background: rgba(255, 255, 255, .07); }
}

.drawer__lang {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-2);
}
/* 箭头用边框绘制，不依赖字体符号 */
.drawer__lang::after {
  content: "";
  width: 6px; height: 6px;
  border-top: 1.8px solid currentColor;
  border-right: 1.8px solid currentColor;
  transform: rotate(45deg);
}

.burger {
  width: 42px; height: 42px;
  display: grid;
  place-content: center;
  gap: 5px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
}
.burger span {
  display: block;
  width: 17px; height: 1.8px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s, opacity .2s;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.8px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.8px) rotate(-45deg); }

/* ---------- 抽屉 ---------- */
.drawer {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: 99;
  padding: 12px var(--pad) 26px;
  background: rgba(11, 16, 36, .97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  transform: translateY(-14px);
  opacity: 0;
  transition: transform .3s, opacity .3s;
}
.drawer[hidden] { display: none; }
.drawer.is-open { transform: translateY(0); opacity: 1; }

.drawer__links { display: grid; }
.drawer__links a {
  padding: 14px 4px;
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid var(--line);
}
.drawer__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.drawer__actions .btn--ghost { border-color: var(--line-2); }

.scrim {
  position: fixed; inset: 0;
  z-index: 98;
  background: rgba(4, 7, 18, .6);
  opacity: 0;
  transition: opacity .3s;
}
.scrim[hidden] { display: none; }
.scrim.is-open { opacity: 1; }

/* ---------- 装饰光斑 ---------- */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .5;
  pointer-events: none;
}
.orb--1 { width: 320px; height: 320px; top: -80px; right: -90px; background: #4F46E5; animation: float 14s ease-in-out infinite; }
.orb--2 { width: 260px; height: 260px; top: 240px; left: -110px; background: #0891B2; animation: float 18s ease-in-out infinite reverse; }
.orb--3 { width: 220px; height: 220px; bottom: 40px; right: 20%; background: #7C3AED; opacity: .32; animation: float 20s ease-in-out infinite; }
.orb--4 { width: 340px; height: 340px; top: 50%; left: 50%; transform: translate(-50%, -50%); background: #4F46E5; opacity: .35; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(18px, -26px) scale(1.08); }
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 30%, #000 20%, transparent 75%);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 44px) 0 0;
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__inner { position: relative; z-index: 1; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--text-2);
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, .05);
  backdrop-filter: blur(8px);
}
.pill .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .2);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(52, 211, 153, .22); }
  50%      { box-shadow: 0 0 0 7px rgba(52, 211, 153, .05); }
}

.hero__title {
  margin: 18px 0 0;
  font-size: clamp(28px, 8.2vw, 44px);
  line-height: 1.24;
  letter-spacing: -.025em;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__desc {
  margin-top: 16px;
  font-size: 15px;
  color: var(--text-2);
  max-width: 34em;
}

.hero__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  padding: 6px 13px;
  font-size: 12.5px;
  color: var(--text-2);
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero__cta .btn { flex: 1 1 150px; }

.hero__stats {
  display: grid;
  /* 手机上 2×2：4 列会让较长的标签（尤其英文）折行错位 */
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 6px;
  margin-top: 32px;
  padding: 18px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
}
.hero__stats li { text-align: center; }
.hero__stats strong {
  display: block;
  font-size: clamp(19px, 5.6vw, 26px);
  font-weight: 800;
  letter-spacing: -.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__stats span { font-size: 11.5px; color: var(--text-3); }

/* ---------- Hero 卡片 ---------- */
.hero__visual {
  position: relative;
  margin: 44px auto 0;
  width: 100%;
  max-width: 380px;
  height: 300px;
}
.cards { position: relative; height: 100%; perspective: 1200px; }

.card {
  position: absolute;
  left: 50%;
  width: min(300px, 82%);
  aspect-ratio: 1.586 / 1;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  color: #fff;
  overflow: hidden;
  transition: transform .5s cubic-bezier(.22, 1, .36, 1);
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, .22), transparent 42%);
  pointer-events: none;
}

.card--1 {
  top: 96px;
  transform: translateX(-50%) rotate(-3deg);
  background: linear-gradient(135deg, #4F46E5 0%, #6D28D9 55%, #0E7490 100%);
  z-index: 3;
  animation: float1 7s ease-in-out infinite;
}
.card--2 {
  top: 48px;
  transform: translateX(-50%) rotate(2deg) scale(.955);
  background: linear-gradient(135deg, #1E293B 0%, #334155 60%, #0F766E 100%);
  z-index: 2;
  animation: float2 7s ease-in-out infinite .6s;
}
.card--3 {
  top: 4px;
  transform: translateX(-50%) rotate(-6deg) scale(.91);
  background: linear-gradient(135deg, #0B1024 0%, #172554 65%, #155E75 100%);
  z-index: 1;
  animation: float3 7s ease-in-out infinite 1.2s;
}

/* 每张卡单独一组关键帧，才能在浮动时保留各自的旋转与缩放 */
@keyframes float1 {
  0%, 100% { transform: translateX(-50%) rotate(-3deg) translateY(0); }
  50%      { transform: translateX(-50%) rotate(-3deg) translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateX(-50%) rotate(2deg) scale(.955) translateY(0); }
  50%      { transform: translateX(-50%) rotate(2deg) scale(.955) translateY(-12px); }
}
@keyframes float3 {
  0%, 100% { transform: translateX(-50%) rotate(-6deg) scale(.91) translateY(0); }
  50%      { transform: translateX(-50%) rotate(-6deg) scale(.91) translateY(-12px); }
}

.card__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.card__label { font-size: 9.5px; letter-spacing: .14em; opacity: .78; }
.card__org { font-size: 12px; font-weight: 700; letter-spacing: .04em; }
.card__chip {
  width: 34px; height: 25px;
  margin-top: auto;
  border-radius: 6px;
  background: linear-gradient(135deg, #FDE68A, #D97706);
  opacity: .92;
}
.card__num {
  margin-top: 10px;
  font-size: clamp(13px, 4vw, 16px);
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
}
.card__foot {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: .1em;
  opacity: .8;
}

.chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  color: var(--text);
  border: 1px solid var(--line-2);
  background: rgba(11, 16, 36, .78);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(3, 6, 20, .45);
}
.chip svg { width: 14px; height: 14px; flex: none; color: var(--cyan); }
.chip--a { top: 24px; right: 0; animation: chipFloat 6s ease-in-out infinite .3s; }
.chip--b { bottom: 6px; left: 0; animation: chipFloat 6s ease-in-out infinite 1.4s; }

@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* ---------- 跑马灯 ---------- */
.marquee {
  margin-top: 44px;
  padding: 13px 0;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, .02);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: 22px;
  width: max-content;
  animation: scroll 30s linear infinite;
}
.marquee__track span { font-size: 13px; font-weight: 600; color: var(--text-2); white-space: nowrap; }
/* 分隔符用 CSS 绘制，避免依赖字体里的符号字形 */
.marquee__track i {
  flex: none;
  width: 5px; height: 5px;
  border-radius: 1px;
  background: var(--brand-2);
  transform: rotate(45deg);
}
@keyframes scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- 区块标题 ---------- */
.sec-head { max-width: 720px; margin-bottom: 34px; }
.sec-tag {
  display: inline-block;
  padding: 5px 13px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  border-radius: 999px;
  color: var(--brand-2);
  border: 1px solid rgba(129, 140, 248, .32);
  background: rgba(99, 102, 241, .1);
}
.sec-title {
  margin-top: 14px;
  font-size: clamp(22px, 6vw, 34px);
  letter-spacing: -.02em;
}
.sec-desc { margin-top: 12px; font-size: 14.5px; color: var(--text-2); }

/* ---------- 核心价值 ---------- */
.feat-grid { display: grid; gap: 14px; }

.feat {
  position: relative;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .015));
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.feat::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(129, 140, 248, .6), transparent);
  opacity: 0;
  transition: opacity .3s;
}
@media (hover: hover) {
  .feat:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: var(--shadow); }
  .feat:hover::before { opacity: 1; }
}

.feat__icon {
  width: 44px; height: 44px;
  display: grid;
  place-content: center;
  border-radius: 13px;
  color: var(--brand-2);
  border: 1px solid rgba(129, 140, 248, .28);
  background: rgba(99, 102, 241, .13);
}
.feat__icon svg { width: 22px; height: 22px; }
.feat h3 { margin-top: 16px; font-size: 17px; }
.feat p { margin-top: 8px; font-size: 13.5px; color: var(--text-2); }

.feat--wide {
  background:
    radial-gradient(circle at 88% 12%, rgba(34, 211, 238, .22), transparent 52%),
    linear-gradient(150deg, rgba(99, 102, 241, .24), rgba(255, 255, 255, .02));
  border-color: rgba(129, 140, 248, .3);
}
.feat__rate { display: flex; gap: 26px; margin-top: 18px; }
.feat__rate b {
  display: block;
  font-size: 32px;
  line-height: 1.1;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.feat__rate span { font-size: 12px; color: var(--text-3); }

.feat__orgs { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.feat__orgs span {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .03em;
  border-radius: 6px;
  color: var(--text-2);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
}

/* ---------- 解决方案 Tabs ---------- */
.tabs__bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 18px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.tabs__bar::-webkit-scrollbar { display: none; }

.tabs__btn {
  flex: none;
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
  transition: color .25s, background .25s, border-color .25s;
}
.tabs__btn.is-active {
  color: #fff;
  border-color: transparent;
  background: var(--grad-btn);
  box-shadow: var(--shadow-glow);
}

.panel {
  display: grid;
  gap: 24px;
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 90% 0%, rgba(99, 102, 241, .16), transparent 55%),
    linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
  animation: panelIn .45s cubic-bezier(.22, 1, .36, 1);
}
.panel[hidden] { display: none; }
@keyframes panelIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

.panel__copy h3 { font-size: 20px; }
.ticks { margin-top: 16px; display: grid; gap: 11px; }
.ticks li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  color: var(--text-2);
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(52, 211, 153, .16);
  border: 1px solid rgba(52, 211, 153, .4);
}
.ticks li::after {
  content: "";
  position: absolute;
  left: 5.5px; top: 13.5px;
  width: 6px; height: 3px;
  border-left: 1.6px solid var(--mint);
  border-bottom: 1.6px solid var(--mint);
  transform: rotate(-45deg);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--brand-2);
}
.link-arrow svg { width: 17px; height: 17px; transition: transform .25s; }
@media (hover: hover) { .link-arrow:hover svg { transform: translateX(4px); } }

.mini-list { display: grid; gap: 10px; }
.mini {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(7, 11, 26, .55);
}
.mini__tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mini b {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.mini em {
  font-style: normal;
  font-size: 13px;
  font-weight: 700;
  color: var(--mint);
  font-variant-numeric: tabular-nums;
}

/* ---------- 费率 ---------- */
.rates { display: grid; gap: 16px; }

.rates__hero {
  padding: 28px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(129, 140, 248, .3);
  background:
    radial-gradient(circle at 15% 10%, rgba(34, 211, 238, .26), transparent 55%),
    linear-gradient(150deg, rgba(99, 102, 241, .3), rgba(11, 16, 36, .6));
  overflow: hidden;
}
.rates__en {
  display: block;
  font-size: clamp(20px, 6vw, 30px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.2;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.rates__cn { margin-top: 6px; font-size: clamp(19px, 5.4vw, 26px); }
.rates__hero p { margin-top: 14px; font-size: 14px; color: var(--text-2); }
.rates__hero .btn { margin-top: 22px; }

.rates__list { display: grid; gap: 12px; }
.rate {
  display: flex;
  gap: 15px;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
  transition: border-color .3s, background .3s;
}
@media (hover: hover) {
  .rate:hover { border-color: var(--line-2); background: rgba(255, 255, 255, .055); }
}
.rate__no {
  flex: none;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.rate h4 { font-size: 16px; }
.rate p { margin-top: 6px; font-size: 13.5px; color: var(--text-2); }

/* ---------- 4 步流程 ---------- */
.steps { display: grid; gap: 14px; counter-reset: s; }
.step {
  position: relative;
  padding: 22px 20px 22px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
  transition: transform .3s, border-color .3s;
}
@media (hover: hover) {
  .step:hover { transform: translateY(-4px); border-color: rgba(129, 140, 248, .4); }
}
.step__no {
  display: grid;
  place-content: center;
  width: 40px; height: 40px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  background: var(--grad-btn);
  box-shadow: var(--shadow-glow);
}
.step h3 { margin-top: 15px; font-size: 17px; }
.step p { margin-top: 7px; font-size: 13.5px; color: var(--text-2); }

/* ---------- 资金安全 ---------- */
.secure {
  display: grid;
  gap: 30px;
  padding: 28px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 100% 0%, rgba(34, 211, 238, .16), transparent 55%),
    linear-gradient(160deg, rgba(99, 102, 241, .16), rgba(255, 255, 255, .015));
}
.secure__grid { display: grid; gap: 12px; margin-top: 24px; }
.secure__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(7, 11, 26, .45);
}
.secure__item svg { width: 24px; height: 24px; flex: none; color: var(--cyan); }
.secure__item b { display: block; font-size: 14px; }
.secure__item span { font-size: 12px; color: var(--text-3); }

.secure__art { display: grid; place-items: center; }
.shield { position: relative; width: 190px; height: 200px; display: grid; place-items: center; }
.shield svg { width: 100%; height: 100%; position: relative; z-index: 1; animation: chipFloat 6s ease-in-out infinite; }
.shield__ring {
  position: absolute;
  width: 170px; height: 170px;
  border-radius: 50%;
  border: 1px solid rgba(129, 140, 248, .3);
  animation: ripple 3.4s ease-out infinite;
}
.shield__ring--2 { animation-delay: 1.7s; }
@keyframes ripple {
  0%   { transform: scale(.7); opacity: .85; }
  100% { transform: scale(1.35); opacity: 0; }
}

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 11px; }
.qa {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
  overflow: hidden;
  transition: border-color .3s, background .3s;
}
.qa[open] { border-color: rgba(129, 140, 248, .35); background: rgba(99, 102, 241, .08); }

.qa summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 17px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa__no {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand-2);
  font-variant-numeric: tabular-nums;
  flex: none;
}
.qa__icon {
  position: relative;
  width: 20px; height: 20px;
  margin-left: auto;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-2);
}
.qa__icon::before, .qa__icon::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 9px; height: 1.6px;
  border-radius: 2px;
  background: var(--text-2);
  transform: translate(-50%, -50%);
  transition: transform .3s, opacity .3s;
}
.qa__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.qa[open] .qa__icon { border-color: var(--brand-2); }
.qa[open] .qa__icon::after { opacity: 0; transform: translate(-50%, -50%) rotate(0); }

.qa__body { padding: 0 18px 18px 45px; }
.qa__body p { font-size: 14px; color: var(--text-2); }
.qa[open] .qa__body { animation: panelIn .35s ease; }

/* ---------- 结尾 CTA ---------- */
.cta {
  position: relative;
  padding: 64px 0;
  overflow: hidden;
  text-align: center;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-3) 100%);
}
.cta__bg { position: absolute; inset: 0; }
.cta__inner { position: relative; z-index: 1; }
.cta h2 { font-size: clamp(23px, 6.4vw, 36px); letter-spacing: -.02em; }
.cta p { margin: 14px auto 0; max-width: 40em; font-size: 14.5px; color: var(--text-2); }
.cta__btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 28px; }
.cta__btns .btn { flex: 1 1 170px; max-width: 260px; }
.cta__points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin-top: 26px;
}
.cta__points li {
  position: relative;
  padding-left: 16px;
  font-size: 12.5px;
  color: var(--text-3);
}
.cta__points li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--mint);
}

/* ---------- 页脚 ---------- */
.footer {
  padding: 44px 0 100px;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}
.footer__inner { display: grid; gap: 28px; }
.footer__brand p { margin-top: 14px; font-size: 13.5px; color: var(--text-3); max-width: 30em; }
.footer__orgs { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.footer__orgs span {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  color: var(--text-3);
  border: 1px solid var(--line);
}

.footer__col { display: grid; gap: 10px; align-content: start; }
.footer__col h4 { font-size: 14px; margin-bottom: 2px; }
.footer__col a { font-size: 13.5px; color: var(--text-3); transition: color .2s; }
@media (hover: hover) { .footer__col a:hover { color: var(--brand-2); } }

.footer__bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 6px;
}
.footer__bottom p { font-size: 12.5px; color: var(--text-3); }

/* ---------- 悬浮客服 ---------- */
.fab {
  position: fixed;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 17px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  border-radius: 999px;
  background: var(--grad-btn);
  box-shadow: var(--shadow-glow);
  transition: transform .25s;
}
.fab svg { width: 18px; height: 18px; }
.fab:active { transform: scale(.95); }
@media (hover: hover) { .fab:hover { transform: translateY(-3px); } }

/* ---------- 滚动进场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.22, 1, .36, 1), transform .7s cubic-bezier(.22, 1, .36, 1);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .40s; }
.reveal[data-delay="6"] { transition-delay: .48s; }

/* =========================================================
   平板  ≥ 600px
   ========================================================= */
@media (min-width: 600px) {
  body { font-size: 15.5px; }
  :root { --pad: 28px; }

  .hero__stats { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .feat--wide { grid-column: span 2; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .secure__grid { grid-template-columns: repeat(2, 1fr); }
  .panel { grid-template-columns: 1.15fr .85fr; align-items: center; padding: 30px 28px; }
  .footer__inner { grid-template-columns: 1fr 1fr 1fr; }
  .footer__brand { grid-column: span 3; }
  .footer__bottom { grid-template-columns: 1fr auto; align-items: center; }
  .footer__note { text-align: right; }
}

/* =========================================================
   桌面  ≥ 992px
   ========================================================= */
@media (min-width: 992px) {
  :root { --nav-h: 74px; --pad: 40px; }

  body { font-size: 16px; }
  .section { padding: 100px 0; }

  .nav__links {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-inline: auto;
  }
  .nav__links a {
    position: relative;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text-2);
    transition: color .25s;
  }
  .nav__links a::after {
    content: "";
    position: absolute;
    left: 0; bottom: -6px;
    width: 100%; height: 2px;
    border-radius: 2px;
    background: var(--grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
  }
  .nav__links a:hover { color: var(--text); }
  .nav__links a:hover::after { transform: scaleX(1); }

  .nav__actions { display: flex; align-items: center; gap: 10px; }
  .lang a.is-active { display: block; }
  .burger { display: none; }
  .drawer, .scrim { display: none !important; }

  .hero { padding-top: calc(var(--nav-h) + 66px); }
  .hero__inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 50px;
    align-items: center;
  }
  .hero__title { font-size: clamp(40px, 3.9vw, 54px); }
  .hero__desc { font-size: 16.5px; }
  .hero__cta .btn { flex: 0 0 auto; }
  .hero__stats { max-width: 560px; padding: 22px 18px; }
  .hero__visual { margin: 0; max-width: none; height: 420px; }
  .card { width: 340px; }
  .card--1 { top: 150px; }
  .card--2 { top: 78px; }
  .card--3 { top: 8px; }
  .chip--a { top: 40px; right: 10px; }
  .chip--b { bottom: 20px; left: 0; }
  .marquee { margin-top: 70px; }

  .sec-head { margin-bottom: 48px; }

  /* 7 张卡 / 3 列：首尾各占 2 格，凑满 9 格，避免末行留空洞 */
  .feat-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .feat--wide { grid-column: span 2; display: flex; flex-direction: column; }
  .feat--wide .feat__rate { margin-top: auto; padding-top: 22px; }
  .feat-grid > .feat:last-child { grid-column: span 2; }
  .feat { padding: 26px; }

  .panel { grid-template-columns: 1.1fr .9fr; gap: 44px; padding: 40px; }
  .panel__copy h3 { font-size: 24px; }

  .rates { grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
  .rates__hero { padding: 40px 36px; display: flex; flex-direction: column; }
  .rates__hero .btn { margin-top: auto; align-self: flex-start; }

  .steps { grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative; }
  .steps::before {
    content: "";
    position: absolute;
    /* 对齐序号方块的垂直中心：padding 26px + 半个 40px 方块 */
    top: 46px; left: 8%; right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(129, 140, 248, .5), rgba(34, 211, 238, .5), transparent);
  }
  .step { padding: 26px; }

  .secure { grid-template-columns: 1.25fr .75fr; gap: 50px; align-items: center; padding: 52px 46px; }
  .secure__grid { gap: 14px; }
  .shield { width: 250px; height: 265px; }
  .shield__ring { width: 220px; height: 220px; }

  .qa summary { padding: 20px 24px; font-size: 16px; }
  .qa__body { padding: 0 24px 22px 54px; }

  .cta { padding: 110px 0; }
  .footer { padding: 64px 0 44px; }
  .footer__inner { grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
  .footer__brand { grid-column: span 1; }
  .fab { right: 26px; bottom: 26px; }
}

/* =========================================================
   无障碍：减少动效
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}