/* ==========================================================================
   Namimora 官网样式
   1. 设计变量与基础重置
   2. 布局与通用组件
   3. 页头（现代导航）与页脚
   4. 首屏 Hero
   5. 区块：卡片 / 特性 / 步骤 / 图文 / 表格 / 价格 / 评价 / FAQ
   6. 法律文本与提示框
   7. 交互组件：产品下拉 / 计费切换 / 滚动动效
   8. 响应式
   9. 减少动态效果
   ========================================================================== */

/* ------------------------------------------------------------ 1. 变量 */

:root {
  --violet: #7c5cff;
  --violet-dark: #5b3fe0;
  --cyan: #22d3ee;
  --green: #22c55e;
  --orange: #ff6b4d;
  --amber: #f59e0b;
  --pink: #f472b6;

  --bg: #ffffff;
  --soft: #f6f4fd;
  --soft-2: #efecfa;
  --line: #e5e1f4;
  --line-strong: #d8d2f0;
  --ink: #17123a;
  --text: #221c46;
  --muted: #5d5680;
  --muted-2: #837ca8;

  --dark: #120c2e;
  --dark-2: #1b1347;
  --dark-line: #322a63;
  --dark-text: #cfc9f0;
  --dark-muted: #9c95c9;

  --radius: 16px;
  --radius-lg: 24px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(21, 15, 60, 0.06), 0 4px 12px rgba(21, 15, 60, 0.05);
  --shadow: 0 10px 30px rgba(21, 15, 60, 0.1);
  --shadow-lg: 0 24px 60px rgba(21, 15, 60, 0.18);

  /* 动效曲线与时长：全站统一，便于整体节奏一致 */
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --t-fast: 0.18s;
  --t: 0.34s;
  --t-slow: 0.7s;

  --grad-brand: linear-gradient(135deg, #7c5cff 0%, #5b3fe0 52%, #3f8ef7 100%);
  --grad-accent: linear-gradient(120deg, #7c5cff, #22d3ee, #f472b6, #7c5cff);

  --wrap: 1180px;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, "Noto Sans", "Noto Sans JP",
    "Hiragino Sans", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

body.nav-open {
  overflow: hidden;
}

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

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.2;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4.4vw, 3.1rem);
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
}

h3 {
  font-size: 1.18rem;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--violet-dark);
  text-decoration-color: rgba(124, 92, 255, 0.4);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: currentColor;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.15em;
}

li + li {
  margin-top: 0.35em;
}

/*
 * 组件级列表重置：上面的 li + li 只适用于正文列表。
 * 横向 flex 列表（导航）与 grid 列表（步骤、要点）必须清零，
 * 否则除首项外的项会被下移，表现为「第一项没与其他项对齐」。
 */
.nav-list > li,
.nav-list > li + li,
.steps > li,
.steps > li + li,
.ticks li + li,
.lang-menu li,
.lang-menu li + li {
  margin-top: 0;
}

strong,
b {
  /* 继承上下文颜色：避免在深色区域（hero / dark 区块）出现深色粗体而不可见 */
  color: inherit;
  font-weight: 700;
}

/* 浅色正文中的强调文字仍需要比周围灰色更深 */
.legal-block strong,
.prose p strong,
.faq-body strong,
.card p strong,
.step p strong,
.split-copy p strong,
.callout strong {
  color: var(--ink);
}

.ico {
  width: 1.25em;
  height: 1.25em;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

/* --------------------------------------------------- 2. 布局与通用组件 */

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(100% - 2.5rem, 860px);
}

.center {
  text-align: center;
}

.section {
  padding: clamp(3rem, 6vw, 5.5rem) 0;
}

.section--tight {
  padding: clamp(2rem, 4vw, 3rem) 0;
}

.section--dark {
  background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 100%);
  color: var(--dark-text);
}

.section--dark h2,
.section--dark h3,
.section--dark strong {
  color: #fff;
}

.section--dark a {
  color: var(--cyan);
}

/* 深色区块内的强调文字与价格：显式提亮，保证对比度 */
.section--dark .card p strong,
.section--dark .step p strong,
.section--dark .split-copy p strong {
  color: #fff;
}

.section--dark .price span {
  color: #fff;
}

.section--dark .price em {
  color: var(--dark-muted);
}

.section--dark .faq-item summary::after {
  color: var(--cyan);
}

.section--cta {
  background: radial-gradient(120% 140% at 50% 0%, #2c1f6b 0%, var(--dark) 60%);
  color: var(--dark-text);
}

.section--cta h2 {
  color: #fff;
}

.section--cta .section-lead {
  color: var(--dark-text);
}

.section--cta a {
  color: var(--cyan);
}

.section--cta .fineprint {
  color: var(--dark-muted);
}

.section-title {
  margin-bottom: 0.4em;
}

.section-lead {
  max-width: 62ch;
  margin: 0 auto 2.4rem;
  color: var(--muted);
}

.section-lead.center {
  text-align: center;
}

.section--dark .section-lead {
  color: var(--dark-muted);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet-dark);
}

.section--dark .eyebrow,
.hero .eyebrow {
  color: var(--cyan);
}

.fineprint {
  font-size: 0.86rem;
  color: var(--muted-2);
  max-width: 78ch;
}

.center .fineprint,
.fineprint.center {
  margin-inline: auto;
  text-align: center;
}

.section--dark .fineprint {
  color: var(--dark-muted);
}

.tag {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--soft-2);
  color: var(--violet-dark);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-weight: 650;
  font-size: 0.97rem;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--t) var(--ease), box-shadow var(--t), background var(--t), color var(--t),
    border-color var(--t);
}

.btn-primary {
  background: var(--grad-brand);
  background-size: 180% 180%;
  color: #fff;
  box-shadow: 0 12px 28px -14px rgba(91, 63, 224, 0.85);
}

/* 掠光：hover 时一道高光扫过按钮，增加“现代感” */
.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 28%, rgba(255, 255, 255, 0.5) 50%, transparent 72%);
  transform: translateX(-140%);
  transition: transform 0.75s var(--ease);
  pointer-events: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  background-position: 100% 50%;
  box-shadow: 0 18px 38px -16px rgba(91, 63, 224, 0.95);
}

.btn-primary:hover::after {
  transform: translateX(140%);
}

.btn-ghost {
  border-color: currentColor;
  color: inherit;
  opacity: 0.85;
}

.btn-ghost:hover {
  opacity: 1;
  transform: translateY(-2px);
  background: rgba(124, 92, 255, 0.1);
}

.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.btn-ico {
  width: 1.15em;
  height: 1.15em;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
}

.cta-row--center {
  justify-content: center;
}

.cta-row--left {
  justify-content: flex-start;
}

.ticks {
  list-style: none;
  padding: 0;
  margin: 1.1rem 0;
}

.ticks li {
  padding-left: 1.85rem;
  margin-bottom: 0.55rem;
  color: var(--muted);
}

.section--dark .ticks li {
  color: var(--dark-text);
}

/*
 * ✓ 图标参与首行内联排版（而非绝对定位），
 * 这样它总是跟随首行基线，不依赖行高推算；
 * 负 margin 使其“悬挂”在左侧，正文首行与折行均由 padding-left 对齐。
 */
.ticks li::before {
  content: "✓";
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  margin-left: -1.85rem;
  margin-right: 0.6rem;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.16);
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.25rem;
  text-align: center;
  vertical-align: -0.22em;
}

.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.cards--2 {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t) var(--ease), box-shadow var(--t), border-color var(--t);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 30px 62px -42px rgba(21, 15, 60, 0.55);
  border-color: rgba(124, 92, 255, 0.3);
}

.section--dark .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--dark-line);
  color: var(--dark-text);
  box-shadow: none;
}

.section--dark .card:hover {
  border-color: rgba(124, 92, 255, 0.45);
  box-shadow: 0 30px 62px -52px #000;
}

.svg-art {
  width: 100%;
  height: auto;
  display: block;
}

/* ------------------------------------------- 3. 页头（导航）与页脚 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid rgba(124, 92, 255, 0.14);
  transition: background var(--t), box-shadow var(--t), border-color var(--t);
}

/* 顶部流动渐变线：整站统一的品牌动势 */
.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--cyan), var(--pink), var(--violet));
  background-size: 300% 100%;
  animation: nm-aurora 9s linear infinite;
  opacity: 0.9;
  pointer-events: none;
}

@keyframes nm-aurora {
  from {
    background-position: 0% 50%;
  }
  to {
    background-position: 300% 50%;
  }
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
  transition: width 0.08s linear;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 44px -32px rgba(21, 15, 60, 0.7);
  border-bottom-color: rgba(124, 92, 255, 0.26);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  min-height: 74px;
  transition: min-height var(--t) var(--ease);
}

.site-header.is-scrolled .header-inner {
  min-height: 62px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 750;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.brand-mark-wrap {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
}

.brand-mark-wrap::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 18px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.5), transparent 68%);
  opacity: 0;
  filter: blur(6px);
  transition: opacity var(--t);
}

.brand:hover .brand-mark-wrap::after {
  opacity: 1;
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  transition: transform 0.55s var(--ease);
}

.brand:hover .brand-mark {
  transform: rotate(-8deg) scale(1.07);
}

.site-nav {
  position: relative;
  margin-left: auto;
}

.nav-list {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0.3rem;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.08), rgba(34, 211, 238, 0.06));
  border: 1px solid rgba(124, 92, 255, 0.14);
}

.nav-item {
  position: relative;
  z-index: 1;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  padding: 0.5rem 0.95rem;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--t-fast);
}

.nav-link:hover,
.nav-link.is-active,
.nav-item--mega.is-open > .nav-link {
  color: var(--violet-dark);
}

.nav-caret {
  width: 0.85em;
  height: 0.85em;
  transition: transform var(--t) var(--ease);
}

.nav-item--mega.is-open .nav-caret {
  transform: rotate(180deg);
}

/* 滑动指示条：由 JS 移动到当前悬停/激活项下方 */
.nav-pill {
  position: absolute;
  top: 0.3rem;
  bottom: 0.3rem;
  left: 0;
  width: 0;
  margin: 0;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 10px 26px -16px rgba(21, 15, 60, 0.85), 0 0 0 1px rgba(124, 92, 255, 0.16);
  opacity: 0;
  pointer-events: none;
  list-style: none;
  transition: transform var(--t) var(--ease), width var(--t) var(--ease), opacity var(--t-fast);
}

.nav-pill.is-ready {
  opacity: 1;
}

.nav-cta {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(124, 92, 255, 0.2);
  border-radius: 14px;
  cursor: pointer;
  transition: border-color var(--t-fast), transform var(--t-fast);
}

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

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.lang-switch {
  position: relative;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(124, 92, 255, 0.18);
  border-radius: 999px;
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), transform var(--t-fast);
}

.lang-btn:hover {
  border-color: var(--violet);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -16px rgba(91, 63, 224, 0.9);
}

.lang-caret {
  width: 0.9em;
  height: 0.9em;
  transition: transform var(--t) var(--ease);
}

.lang-switch.is-open .lang-caret {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 200px;
  padding: 0.45rem;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(124, 92, 255, 0.18);
  border-radius: 18px;
  box-shadow: 0 36px 74px -42px rgba(21, 15, 60, 0.7);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.98);
  transition: opacity var(--t-fast), transform var(--t) var(--ease), visibility var(--t-fast);
  z-index: 96;
}

.lang-switch.is-open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.lang-menu a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  font-size: 0.92rem;
  transition: background var(--t-fast), transform var(--t-fast);
}

.lang-menu a:hover {
  background: var(--soft);
  transform: translateX(2px);
}

.lang-menu a.is-active {
  color: var(--violet-dark);
  font-weight: 700;
}

.lang-full {
  color: var(--muted-2);
}

.site-footer {
  background: var(--dark);
  color: var(--dark-muted);
  padding: 3.5rem 0 1.5rem;
  font-size: 0.94rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2rem;
}

.site-footer .brand {
  color: #fff;
  margin-bottom: 0.9rem;
}

.footer-col h2 {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 0.9rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li + li {
  margin-top: 0.55rem;
}

.site-footer a {
  color: var(--dark-text);
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dark-line);
  font-size: 0.82rem;
}

.trademark {
  max-width: 100ch;
  color: var(--dark-muted);
}

/* ------------------------------------------------------------- 4. Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 5rem);
  background: radial-gradient(100% 120% at 12% 0%, #30216f 0%, var(--dark) 55%);
  color: var(--dark-text);
}

.hero--record {
  background: radial-gradient(100% 120% at 12% 0%, #5a2340 0%, #2a1030 45%, var(--dark) 100%);
}

.hero--playlist {
  background: radial-gradient(100% 120% at 12% 0%, #123c46 0%, #14203f 50%, var(--dark) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% 40%;
  height: 420px;
  background: radial-gradient(closest-side, rgba(124, 92, 255, 0.45), transparent);
  pointer-events: none;
  animation: nm-drift 14s ease-in-out infinite alternate;
}

@keyframes nm-drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-5%, -4%, 0) scale(1.08);
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.hero h1 {
  color: #fff;
}

.hero .lead {
  font-size: 1.12rem;
  color: var(--dark-text);
  /* 与下方要点使用同一行宽，保证左右边界对齐 */
  max-width: 36rem;
}

.hero .ticks li {
  color: var(--dark-text);
}

/* 要点与上方段落使用同一行宽，右侧边界对齐 */
.hero .ticks {
  max-width: 36rem;
}

/* hero 内的链接与粗体：深色背景上必须提亮 */
.hero a {
  color: var(--cyan);
}

.hero strong,
.hero b {
  color: #fff;
}

.hero .ticks li::before {
  background: rgba(34, 197, 94, 0.22);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 1.5rem 0 0;
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 0.86rem;
  color: #ffe9a8;
}

.hero-badge .ico {
  color: var(--amber);
}

.hero .fineprint {
  color: var(--dark-muted);
  margin-top: 1rem;
}

.hero-art {
  position: relative;
  animation: nm-rise 0.9s var(--ease) both;
}

@keyframes nm-rise {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------- 5. 区块组件 */

.stats {
  position: relative;
  overflow: hidden;
  background: var(--soft);
  border-block: 1px solid var(--line);
  padding: 1.6rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 1.9rem;
  color: var(--violet-dark);
  line-height: 1.1;
}

.stat span {
  font-size: 0.88rem;
  color: var(--muted);
}

.product-card .product-art {
  margin: -0.6rem 0 0.5rem;
}

.product-card .product-art .svg-art {
  max-height: 190px;
}

.product-card--green .tag {
  background: rgba(34, 197, 94, 0.14);
  color: #15803d;
}

.product-card--green .btn-primary {
  background: linear-gradient(135deg, #16a34a, #0ea5e9);
  box-shadow: 0 12px 28px -14px rgba(14, 165, 233, 0.9);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 1rem;
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.16), rgba(34, 211, 238, 0.16));
  color: var(--violet-dark);
  font-size: 1.35rem;
  transition: transform var(--t) var(--ease), background var(--t);
}

.card:hover .feature-icon {
  transform: translateY(-3px) rotate(-5deg);
}

.section--dark .feature-icon {
  background: rgba(255, 255, 255, 0.08);
  color: var(--cyan);
}

.feature-card p,
.product-card p,
.download-card p {
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.section--dark .card p {
  color: var(--dark-text);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.split:last-child {
  margin-bottom: 0;
}

.split--reverse .split-art {
  order: 2;
}

.split-copy h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

.split-copy p {
  color: var(--muted);
}

.section--dark .split-copy p {
  color: var(--dark-text);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t) var(--ease), box-shadow var(--t), border-color var(--t);
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: 0 30px 62px -42px rgba(21, 15, 60, 0.55);
  border-color: rgba(124, 92, 255, 0.3);
}

.section--dark .step {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--dark-line);
  box-shadow: none;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 0.9rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: #fff;
  font-weight: 700;
}

.step p {
  color: var(--muted);
  margin: 0;
}

.section--dark .step p {
  color: var(--dark-text);
}

.logo-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin: 1.6rem 0 0;
}

.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 0.92rem;
  font-weight: 550;
  color: var(--text);
  transition: transform var(--t) var(--ease), box-shadow var(--t), border-color var(--t);
}

.logo-chip:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 92, 255, 0.35);
  box-shadow: 0 18px 34px -24px rgba(21, 15, 60, 0.6);
}

.logo-chip .ico {
  color: var(--green);
  width: 1em;
  height: 1em;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.compare {
  border-collapse: collapse;
  width: 100%;
  min-width: 640px;
  font-size: 0.94rem;
}

.compare th,
.compare td {
  padding: 0.85rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.compare thead th {
  background: var(--soft);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.compare tbody th {
  font-weight: 600;
  color: var(--ink);
}

.compare td {
  display: table-cell;
  vertical-align: middle;
}

.compare td .ico,
.compare th .ico {
  width: 1em;
  height: 1em;
  margin-right: 0.35rem;
  vertical-align: -0.12em;
}

.compare td .ico {
  color: var(--green);
}

.compare tr:last-child th,
.compare tr:last-child td {
  border-bottom: 0;
}

.compare td:first-of-type {
  font-weight: 600;
}

.section--dark .table-scroll {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--dark-line);
}

.section--dark .compare th,
.section--dark .compare td {
  border-bottom-color: var(--dark-line);
  color: var(--dark-text);
}

.section--dark .compare thead th {
  background: rgba(255, 255, 255, 0.06);
  color: var(--dark-muted);
}

.section--dark .compare tbody th {
  color: #fff;
}

.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
}

.price-card--featured {
  border-color: var(--violet);
  box-shadow: 0 30px 66px -46px rgba(91, 63, 224, 0.95);
}

/* 特色价格卡顶部渐变条 */
.price-card--featured::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}

.price-badge {
  position: absolute;
  top: -0.85rem;
  left: 1.9rem;
  margin: 0;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: #fff;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0.2rem 0 0.4rem;
}

.price span {
  font-size: 2.2rem;
  font-weight: 750;
  color: var(--ink);
}

.price em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.92rem;
}

.price-card .ticks {
  flex: 1;
}

/* 计费周期切换器：3-Month / 1-Year / Lifetime */
.billing-switch-wrap {
  display: flex;
  justify-content: center;
  margin: 0 0 2.4rem;
}

.billing-switch {
  position: relative;
  display: inline-flex;
  gap: 0.2rem;
  padding: 0.3rem;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(124, 92, 255, 0.18);
}

.billing-btn {
  position: relative;
  z-index: 1;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 650;
  color: var(--muted);
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  transition: color var(--t-fast);
}

.billing-btn.is-active {
  color: #fff;
}

.billing-thumb {
  position: absolute;
  top: 0.3rem;
  bottom: 0.3rem;
  left: 0;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--violet), var(--violet-dark));
  box-shadow: 0 14px 30px -16px rgba(91, 63, 224, 0.95);
  z-index: 0;
  transition: transform var(--t) var(--ease), width var(--t) var(--ease);
}

.section--dark .billing-switch {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--dark-line);
}

.section--dark .billing-btn {
  color: var(--dark-muted);
}

.section--dark .billing-btn.is-active {
  color: #fff;
}

.price-value {
  display: inline-block;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.price-value.is-swapping {
  opacity: 0;
  transform: translateY(-8px);
}

.price-note {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--violet-dark);
}

.section--dark .price-note {
  color: var(--cyan);
}

.tier-platforms {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.5rem;
  padding: 0.22rem 0.62rem;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.12);
  color: var(--violet-dark);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section--dark .tier-platforms {
  background: rgba(34, 211, 238, 0.14);
  color: var(--cyan);
}

.quote-card {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.quote-rating {
  display: flex;
  gap: 0.15rem;
  color: var(--amber);
  margin: 0 0 0.8rem;
}

.quote-rating .ico {
  width: 1.05em;
  height: 1.05em;
}

.quote-card blockquote {
  margin: 0 0 1.2rem;
  font-size: 1.02rem;
  color: var(--text);
  flex: 1;
}

.section--dark .quote-card blockquote {
  color: var(--dark-text);
}

.quote-card figcaption {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
  font-size: 0.9rem;
}

.quote-card figcaption strong {
  color: var(--ink);
}

.quote-card figcaption span {
  color: var(--muted-2);
}

.section--dark .quote-card figcaption {
  border-color: var(--dark-line);
}

.section--dark .quote-card figcaption strong {
  color: #fff;
}

.faq {
  display: grid;
  gap: 0.75rem;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 0.35rem 1.2rem;
  transition: border-color var(--t), box-shadow var(--t);
}

.faq-item:hover {
  border-color: rgba(124, 92, 255, 0.32);
  box-shadow: 0 20px 44px -36px rgba(21, 15, 60, 0.7);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 0;
  font-weight: 650;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
  color: var(--violet);
  transition: transform var(--t) var(--ease);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-body {
  padding-bottom: 1rem;
  color: var(--muted);
}

.faq-item[open] .faq-body {
  animation: nm-faq-in 0.32s var(--ease);
}

@keyframes nm-faq-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.faq-body p:last-child {
  margin-bottom: 0.4rem;
}

.section--dark .faq-item {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--dark-line);
}

.section--dark .faq-item summary {
  color: #fff;
}

.section--dark .faq-body {
  color: var(--dark-text);
}

/* --------------------------------------------- 6. 法律文本与提示框 */

.prose {
  color: var(--text);
}

.page-title {
  margin-bottom: 0.6rem;
}

.legal-block {
  margin-top: 2.4rem;
}

.legal-block h2 {
  font-size: 1.32rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.legal-block ul {
  color: var(--muted);
}

.legal-block p {
  color: var(--muted);
}

.legal-block strong {
  color: var(--ink);
}

.placeholder {
  padding: 0.7rem 1rem;
  border: 1px dashed var(--amber);
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.08);
  color: #8a5300;
  font-size: 0.92rem;
}

.callout {
  padding: 1.7rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--soft);
}

.callout h2 {
  font-size: 1.22rem;
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout--warn {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.45);
}

.callout--warn h2 {
  color: #92500a;
}

.callout--info {
  background: rgba(34, 211, 238, 0.1);
  border-color: rgba(34, 211, 238, 0.4);
}

.download-card {
  text-align: left;
}

.download-card .btn {
  width: 100%;
  justify-content: center;
}

/* --------------------------------- 7. 交互组件：产品下拉 / 滚动动效 */

/* 产品大型下拉菜单 */
.mega {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  width: min(600px, 88vw);
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(124, 92, 255, 0.18);
  box-shadow: 0 44px 90px -46px rgba(21, 15, 60, 0.75);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 10px) scale(0.97);
  transform-origin: top center;
  transition: opacity var(--t-fast), transform var(--t) var(--ease), visibility var(--t-fast);
  z-index: 95;
}

.nav-item--mega:hover .mega,
.nav-item--mega:focus-within .mega,
.nav-item--mega.is-open .mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
}

/* Esc 关闭后抑制 hover / focus 重新打开，直至指针或焦点离开该项 */
.nav-item--mega.mega-suppressed .mega {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transform: translate(-50%, 8px) scale(0.98) !important;
}

.mega::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translateX(-50%) rotate(45deg);
  background: rgba(255, 255, 255, 0.97);
  border-left: 1px solid rgba(124, 92, 255, 0.18);
  border-top: 1px solid rgba(124, 92, 255, 0.18);
  border-radius: 3px;
}

/*
 * 隐形悬停桥接区：面板与触发按钮之间有 16px 空隙，
 * 指针从按钮下移到面板时会短暂离开两者，导致 :hover 丢失、菜单闪退。
 * 该伪元素把空隙纳入面板的可命中区域（面板关闭时整体 pointer-events:none，
 * 因此不会变成常驻的隐形陷阱）。
 */
.mega::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -20px;
  height: 20px;
  pointer-events: auto;
}

.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.mega-card {
  position: relative;
  display: flex;
  gap: 0.85rem;
  padding: 1rem;
  border-radius: 18px;
  text-decoration: none;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t), border-color var(--t);
}

.mega-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 0% 0%, rgba(124, 92, 255, 0.14), transparent 62%);
  opacity: 0;
  transition: opacity var(--t);
  pointer-events: none;
}

.mega-card--green::after {
  background: radial-gradient(120% 120% at 0% 0%, rgba(34, 197, 94, 0.16), transparent 62%);
}

.mega-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 92, 255, 0.32);
  box-shadow: 0 26px 54px -34px rgba(21, 15, 60, 0.65);
}

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

.mega-icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.18), rgba(34, 211, 238, 0.18));
  color: var(--violet-dark);
}

.mega-card--green .mega-icon {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.18), rgba(14, 165, 233, 0.18));
  color: #0f8a4d;
}

.mega-text {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.mega-text strong {
  font-size: 1rem;
  color: var(--ink);
}

.mega-text em {
  font-style: normal;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--muted);
}

.mega-foot {
  display: flex;
  gap: 1.2rem;
  margin-top: 0.85rem;
  padding: 0.8rem 0.5rem 0.15rem;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}

.mega-foot a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--violet-dark);
}

.mega-foot a:hover {
  text-decoration: underline;
}

/* 滚动进入视口时的揭示动画（由 JS 添加 .reveal） */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------- 8. 响应式 */

/* 导航在窄屏提前折叠为汉堡菜单：
   桌面导航所需宽度约 940px，若按 860px 折叠，861–940px 区间会被挤压导致首项错位。 */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
    max-width: 520px;
  }

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

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin: 0;
    display: none;
    padding: 0.85rem 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 36px 70px -44px rgba(21, 15, 60, 0.75);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }

  .site-nav.is-open {
    display: block;
    animation: nm-drop 0.3s var(--ease);
  }

  @keyframes nm-drop {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.1rem;
    padding: 0.4rem;
    border-radius: 18px;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    border-radius: 14px;
  }

  /* 移动端不使用滑动指示条，改用整行悬浮背景 */
  .nav-pill {
    display: none;
  }

  .nav-link:hover,
  .nav-link.is-active {
    background: rgba(124, 92, 255, 0.1);
  }

  /* 产品下拉在移动端展开为静态分组 */
  .mega {
    position: static;
    width: auto;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    box-shadow: none;
    border: 0;
    background: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    padding: 0.3rem 0.35rem 0.6rem;
  }

  .mega::before,
  .mega::after {
    display: none;
  }

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

  .nav-cta {
    display: block;
    margin-top: 0.6rem;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .header-actions {
    margin-left: auto;
  }

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

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }

  .split--reverse .split-art {
    order: 0;
  }

  .split-art {
    max-width: 480px;
    margin-inline: auto;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .wrap,
  .wrap--narrow {
    width: min(100% - 1.75rem, var(--wrap));
  }

  .card,
  .step,
  .callout {
    padding: 1.4rem;
  }

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

  .hero .cta-row .btn {
    width: 100%;
    justify-content: center;
  }

  .lang-full {
    display: none;
  }

  .billing-switch {
    flex-wrap: wrap;
    justify-content: center;
  }

  .billing-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.86rem;
  }
}

/* ------------------------------------------------- 9. 减少动态效果 */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  /* 揭示动画不得让内容停留在不可见状态 */
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* 全站共享的 SVG 渐变定义容器（不可见） */
.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}