/* ============================================================
   见山 Mac · JianshanMac — styles
   蓝紫白 · 梦幻渐变 · 衬线标题 · 面向女性客群的时尚设计
   ============================================================ */

:root {
  --bg: #FBFAFF;           /* 页面底色:云白偏紫 */
  --bg-alt: #F5F3FE;       /* 交替区块:淡薰衣草 */
  --surface: #FFFFFF;      /* 卡片 */
  --ink: #231F3D;          /* 主文字:深紫墨 */
  --ink-soft: #5B5680;     /* 次级文字 */
  --ink-dim: #8E8AAC;      /* 弱文字 */
  --indigo: #6366F1;       /* 靛蓝 */
  --violet: #8B5CF6;       /* 紫罗兰 */
  --grape: #7C3AED;        /* 深紫(强调/价格) */
  --grad: linear-gradient(120deg, #6366F1, #A855F7);
  --indigo-tint: #EEF0FE;
  --violet-tint: #F3EEFE;
  --warn: #B45309;         /* 边界警示:琥珀(少量) */
  --line: #E9E6F7;         /* 发丝线 */
  --line-strong: #D8D3F0;
  --radius: 20px;
  --container: 1120px;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code { font-family: var(--mono); font-size: .92em; background: var(--violet-tint); color: var(--grape); padding: .1em .4em; border-radius: 6px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- 滚动进出场 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 250, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 11px;
  background: var(--grad);
  box-shadow: 0 6px 16px rgba(124, 58, 237, .30);
  display: grid; place-items: center;
  font-family: var(--serif); font-size: 19px; font-weight: 900; color: #fff;
}
.brand-name {
  font-family: var(--serif); font-size: 19px; font-weight: 900; letter-spacing: 1px;
}
.brand-name em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 14.5px; color: var(--ink-soft); }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--grape); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s, border-color .2s, color .2s, filter .2s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 26px rgba(124, 58, 237, .30);
}
.btn-primary:hover { filter: brightness(1.06); box-shadow: 0 12px 30px rgba(124, 58, 237, .38); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--violet); color: var(--grape); }
.btn-sm { padding: 8px 20px; font-size: 13.5px; }
.btn-block { width: 100%; margin-top: 18px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 100px 0 96px; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(680px 460px at 86% 6%, rgba(168, 85, 247, .14), transparent 62%),
    radial-gradient(600px 420px at 4% 92%, rgba(99, 102, 241, .12), transparent 62%),
    radial-gradient(420px 300px at 60% 78%, rgba(217, 70, 239, .05), transparent 65%);
  pointer-events: none;
}
.mountain-art { position: absolute; left: 0; right: 0; bottom: 0; pointer-events: none; }
.mountain-art svg { width: 100%; height: 260px; display: block; }
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 1.08fr .92fr;
  gap: 56px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--grape);
  background: var(--violet-tint);
  border: 1px solid rgba(139, 92, 246, .28);
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--violet);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(139, 92, 246, .4); }
  70% { box-shadow: 0 0 0 9px rgba(139, 92, 246, 0); }
  100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0); }
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 4.8vw, 58px);
  line-height: 1.24; font-weight: 900; letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero h1 .accent {
  background: linear-gradient(120deg, #6366F1, #A855F7 55%, #D946EF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: 17px; color: var(--ink-soft); max-width: 540px; margin-bottom: 34px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.trust-chips {
  display: flex; flex-wrap: wrap; gap: 10px;
  list-style: none; font-size: 13px; color: var(--ink-soft);
}
.trust-chips li {
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--line);
  padding: 5px 13px; border-radius: 999px;
}

/* 终端模拟(深紫夜色,呼应主色) */
.hero-visual { position: relative; }
.terminal {
  background: #17142B;
  border: 1px solid #2E2953;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(59, 42, 128, .30);
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 16px;
  background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; }
.t-dot.red { background: #FF5F57; } .t-dot.yellow { background: #FEBC2E; } .t-dot.green { background: #28C840; }
.terminal-title { margin-left: 8px; font-size: 12px; color: #9C98C6; font-family: var(--mono); }
.terminal-body {
  padding: 20px 22px 26px;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.85;
  color: #DFDDF2; overflow-x: auto;
}
.t-dim { color: #7F7BA8; }
.t-ok { color: #7DE3B4; }
.t-brand { color: #A78BFA; }
.t-prompt { color: #F2A8D5; font-weight: 700; }

/* ---------- 区块通用 ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 700px; margin: 0 auto 50px; text-align: center; }
.eyebrow {
  font-family: var(--serif);
  font-size: 13.5px; font-weight: 700; letter-spacing: 4px;
  color: var(--grape); margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 38px); font-weight: 900;
  letter-spacing: .5px; line-height: 1.4;
}
.section-sub { margin-top: 14px; color: var(--ink-soft); font-size: 15.5px; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- 卡片 ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 28px 30px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(139, 92, 246, .40);
  box-shadow: 0 14px 36px rgba(124, 58, 237, .10);
}
.card-icon { font-size: 26px; margin-bottom: 14px; }
.card h3 {
  font-family: var(--serif);
  font-size: 18px; margin-bottom: 8px; font-weight: 700; letter-spacing: .5px;
}
.card p { font-size: 14.5px; color: var(--ink-soft); }

/* 答案横幅 */
.answer-banner {
  margin-top: 26px;
  background: linear-gradient(120deg, rgba(99, 102, 241, .08), rgba(168, 85, 247, .10));
  border: 1px solid rgba(139, 92, 246, .30);
  border-left: 4px solid var(--violet);
  border-radius: var(--radius);
  padding: 26px 30px;
}
.answer-banner strong { font-family: var(--serif); font-size: 18px; letter-spacing: .5px; }
.answer-banner p { margin-top: 8px; font-size: 14.5px; color: var(--ink-soft); }
.answer-banner a { color: var(--grape); border-bottom: 1px dashed rgba(124, 58, 237, .5); }

/* ---------- 定价 ---------- */
.cycle-toggle { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: 8px 0 10px; }
.cycle-btn {
  font-family: inherit; font-size: 14.5px; font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 20px; cursor: pointer;
  transition: all .2s;
}
.cycle-btn small { font-weight: 500; font-size: 11.5px; opacity: .75; margin-left: 4px; }
.cycle-btn:hover { color: var(--grape); border-color: rgba(139, 92, 246, .45); }
.cycle-btn.is-active {
  color: #fff;
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(124, 58, 237, .28);
}
.cycle-note { text-align: center; font-size: 13px; color: var(--ink-dim); margin-bottom: 46px; }
.cycle-note strong { color: var(--grape); }

.group-title {
  font-family: var(--serif);
  font-size: 20px; font-weight: 900; margin: 44px 0 18px;
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  letter-spacing: .5px;
}
.group-title small { font-family: var(--sans); font-size: 13px; font-weight: 500; color: var(--ink-dim); letter-spacing: 0; }

.pricing-grid { align-items: stretch; }
.price-card {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 28px 30px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.price-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, .40);
  box-shadow: 0 16px 40px rgba(124, 58, 237, .11);
}
.price-card-featured {
  border: 1.5px solid var(--violet);
  background: linear-gradient(180deg, #F7F3FF, #FFFFFF 50%);
  box-shadow: 0 18px 48px rgba(139, 92, 246, .18);
}
.price-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.price-head h4 { font-family: var(--serif); font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.badge { font-size: 11.5px; font-weight: 600; padding: 4px 11px; border-radius: 999px; white-space: nowrap; }
.badge-hot {
  color: #fff;
  background: var(--grad);
  box-shadow: 0 4px 12px rgba(124, 58, 237, .28);
}
.badge-green { color: var(--grape); background: var(--indigo-tint); border: 1px solid rgba(99, 102, 241, .30); }
.price-spec { font-size: 13px; color: var(--ink-dim); margin-top: 6px; font-family: var(--mono); }
.price-line { display: flex; align-items: baseline; gap: 6px; margin: 16px 0 6px; }
.price {
  font-family: var(--serif);
  font-size: 40px; font-weight: 900;
  color: var(--ink); letter-spacing: -0.5px;
}
.price-sm { font-size: 26px; }
.price-card-featured .price { color: var(--grape); }
.per { color: var(--ink-dim); font-size: 14px; }
.price-promo { font-size: 13px; color: var(--ink-soft); min-height: 22px; }
.price-promo s { color: var(--ink-dim); }
.price-promo strong { color: var(--grape); }

.tick-list { list-style: none; margin-top: 16px; display: grid; gap: 8px; }
.tick-list li { font-size: 13.8px; color: var(--ink-soft); padding-left: 24px; position: relative; }
.tick-list li::before { content: "✓"; position: absolute; left: 2px; color: var(--violet); font-weight: 700; }

/* 两年付权益脚注 */
.cycle-footnote { text-align: center; margin-top: 38px; font-size: 13.5px; color: var(--ink-dim); }
.cycle-footnote strong { color: var(--grape); }

/* ---------- 保障 ---------- */
.card-side { padding: 32px 32px 34px; }
.side-title { font-family: var(--serif); font-size: 17px; margin-bottom: 16px; letter-spacing: .5px; }
.side-title.ok { color: var(--grape); }
.side-title.warn { color: var(--warn); }
.card-side .tick-list li::before { color: inherit; opacity: .85; }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 800px; }
.faq {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 26px;
  font-family: var(--serif); font-size: 16px; font-weight: 700; letter-spacing: .3px;
  transition: background .2s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--violet-tint); }
.faq-plus { flex: none; position: relative; width: 20px; height: 20px; }
.faq-plus::before, .faq-plus::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  background: var(--ink-dim); transition: transform .25s;
}
.faq-plus::before { width: 12px; height: 2px; }
.faq-plus::after { width: 2px; height: 12px; }
.faq[open] .faq-plus::after { transform: rotate(90deg); }
.faq[open] summary { color: var(--grape); }
.faq-body { padding: 0 26px 24px; font-size: 14.5px; color: var(--ink-soft); }
.faq-body code { font-size: 13px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center; }
.contact-copy h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 38px); font-weight: 900;
  letter-spacing: .5px; line-height: 1.4; margin-bottom: 16px;
}
.contact-copy h2 em {
  font-style: normal;
  background: linear-gradient(120deg, #6366F1, #A855F7 55%, #D946EF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.contact-sub { color: var(--ink-soft); font-size: 15px; margin-bottom: 22px; }
.pay-chips { display: flex; gap: 10px; flex-wrap: wrap; }
.pay-chips span {
  font-size: 13px; color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  padding: 5px 14px; border-radius: 999px;
}
.qr-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  box-shadow: 0 18px 44px rgba(124, 58, 237, .12);
}
.qr-card::before {
  content: ""; position: absolute; left: 24px; right: 24px; top: 0;
  height: 3px; border-radius: 0 0 6px 6px;
  background: var(--grad);
}
.qr-box {
  width: 220px; height: 220px; margin: 0 auto 16px;
  border-radius: 14px; overflow: hidden; position: relative;
  background: #fff; display: grid; place-items: center;
  border: 1px solid var(--line);
}
.qr-box img { width: 100%; height: 100%; object-fit: cover; }
.qr-fallback {
  position: absolute; inset: 0;
  display: none; place-items: center; text-align: center;
  color: var(--ink-dim); font-size: 15px; line-height: 1.6;
  background: repeating-conic-gradient(#E6E2F5 0% 25%, #fff 0% 50%) 0 0 / 22px 22px;
}
.qr-fallback small { font-size: 12px; }
.qr-box.no-qr img { display: none; }
.qr-box.no-qr .qr-fallback { display: grid; }
.qr-id { font-size: 14px; color: var(--ink-soft); }
.qr-id code { font-size: 14px; }
.qr-id small { color: var(--ink-dim); font-size: 12px; }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 46px 0 54px; text-align: center; }
.foot-brand { font-family: var(--serif); font-weight: 900; letter-spacing: 1px; margin-bottom: 12px; }
.foot-disclaimer { font-size: 12.5px; color: var(--ink-dim); line-height: 1.8; margin-bottom: 14px; }
.foot-copy { font-size: 12.5px; color: var(--ink-dim); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 64px 0 72px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .qr-card { max-width: 320px; margin: 0 auto; }
  .mountain-art svg { height: 160px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
  .hero-ctas .btn { width: 100%; }
  .mountain-art svg { height: 110px; }
}