:root{
  --ink:#171b26;
  --ink2:#454e62;
  --muted:#7c8398;
  --line:#e8e2d7;
  --paper:#faf7f2;
  --card:#fffdf9;
  --brand:#c25e1e;
  --brand-dark:#a34a12;
  --brand-soft:#f7e7d7;
  --green:#1f6f5c;
  --radius:18px;
  --shadow:0 6px 22px rgba(23,27,38,.05);
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}

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

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,242,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand:hover{color:var(--ink)}
.brand svg{width:30px;height:30px;flex:none}
.brand small{font-weight:500;font-size:12px;color:var(--muted);letter-spacing:.02em}

.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:15px;color:var(--ink2);font-weight:500}
.nav a:hover,.nav a.is-active{color:var(--brand)}

.head-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 18px;border-radius:999px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.head-cta:hover{background:#2b3242;color:#fff;transform:translateY(-1px)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  will-change:transform;
}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 10px 24px rgba(194,94,30,.24);
}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(194,94,30,.28)}
.btn-ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:#cfc6b6;color:var(--ink);transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{padding:84px 0 76px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

h1{
  margin:22px 0 0;
  font-size:clamp(34px,4.6vw,54px);
  line-height:1.16;
  letter-spacing:-.02em;
  font-weight:700;
}
h1 em{font-style:normal;color:var(--brand)}

.lede{
  margin:22px 0 0;
  font-size:18px;line-height:1.78;
  color:var(--ink2);
  max-width:34em;
}

.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-note{margin:22px 0 0;font-size:13.5px;color:var(--muted)}

/* member card visual */
.hero-visual{position:relative;display:flex;justify-content:center;padding:10px 0 30px}
.hero-visual::before{
  content:"";position:absolute;top:50%;left:50%;
  width:380px;height:380px;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(194,94,30,.18),rgba(194,94,30,0) 66%);
  filter:blur(6px);pointer-events:none;
}
.card-stack{position:relative;width:100%;max-width:350px}

.member-card{
  position:relative;z-index:2;
  padding:26px 26px 22px;
  border-radius:22px;
  background:linear-gradient(158deg,#262b39 0%,#151922 100%);
  color:#fff;
  box-shadow:0 30px 60px -18px rgba(23,27,38,.45);
}
.mc-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.mc-shop{font-size:12.5px;color:rgba(255,255,255,.66)}
.mc-tag{
  padding:3px 10px;border-radius:999px;
  background:rgba(255,255,255,.14);
  font-size:11px;letter-spacing:.04em;color:rgba(255,255,255,.86);
}
.mc-label{margin-top:26px;font-size:12px;letter-spacing:.06em;color:rgba(255,255,255,.5)}
.mc-amount{
  margin-top:4px;font-size:44px;font-weight:700;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  line-height:1.15;
}
.mc-amount span{font-size:22px;font-weight:600;margin-right:4px;opacity:.8}
.mc-bar{
  margin-top:18px;height:6px;border-radius:99px;background:rgba(255,255,255,.14);overflow:hidden;
}
.mc-bar i{display:block;height:100%;width:62%;border-radius:99px;background:linear-gradient(90deg,#e0a06a,#c25e1e)}
.mc-foot{
  display:flex;justify-content:space-between;gap:10px;
  margin-top:16px;padding-top:14px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:11.5px;color:rgba(255,255,255,.46);
}

.qr-card{
  position:absolute;right:-14px;bottom:-28px;z-index:3;
  padding:13px;border-radius:18px;
  background:var(--card);border:1px solid var(--line);
  box-shadow:0 20px 44px -12px rgba(23,27,38,.24);
  display:flex;flex-direction:column;align-items:center;gap:7px;
  font-size:11px;color:var(--muted);letter-spacing:.04em;
}
.qr-card svg{width:92px;height:92px;display:block;border-radius:6px}

/* ---------- sections ---------- */
.section{padding:78px 0}
.section-tight{padding:52px 0}
.section-head{max-width:660px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{
  margin:16px 0 0;
  font-size:clamp(26px,3.3vw,38px);
  line-height:1.26;letter-spacing:-.015em;font-weight:700;
}
.section-head p{margin:16px 0 0;font-size:16.5px;color:var(--ink2)}

.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- cards & grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 26px;
  box-shadow:var(--shadow);
}
.card h3{margin:0;font-size:18.5px;letter-spacing:-.01em}
.card p{margin:10px 0 0;font-size:15px;color:var(--ink2);line-height:1.72}

.icon-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  margin-bottom:16px;
}
.icon-badge svg{width:21px;height:21px}

/* problem cards */
.problem-num{
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:#b9b0a0;margin-bottom:10px;
}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{
  position:relative;
  padding:26px 22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
}
.step-idx{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  margin-bottom:12px;
}
.step h3{margin:0;font-size:17px}
.step p{margin:9px 0 0;font-size:14.5px;color:var(--ink2);line-height:1.7}

/* quote */
.quote{
  margin:0;padding:38px 40px;
  background:var(--card);border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);
}
.quote p{
  margin:0;font-size:clamp(19px,2.2vw,25px);line-height:1.62;
  letter-spacing:-.01em;color:var(--ink);
}
.quote footer{margin-top:18px;font-size:13.5px;color:var(--muted)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:10px 20px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);
  font-size:14.5px;color:var(--ink2);
}

/* cta band */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:56px;border-radius:26px;
  background:linear-gradient(150deg,#1d2330 0%,#2a3142 100%);
  color:#fff;
}
.cta-band h2{margin:0;font-size:clamp(24px,3vw,34px);line-height:1.3;letter-spacing:-.015em}
.cta-band p{margin:14px 0 0;font-size:16px;color:rgba(255,255,255,.66);max-width:34em}
.cta-band .btn-primary{background:var(--brand);box-shadow:0 12px 28px rgba(194,94,30,.35)}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.26);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4);color:#fff}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}

/* ---------- footer ---------- */
.site-foot{
  margin-top:88px;padding:56px 0 44px;
  border-top:1px solid var(--line);
  font-size:14px;color:var(--muted);
}
.foot-inner{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:40px}
.foot-brand strong{display:block;font-size:15.5px;color:var(--ink);font-weight:700;letter-spacing:.01em}
.foot-brand p{margin:10px 0 0;font-size:13.5px;line-height:1.7;max-width:26em}
.foot-col h4{margin:0 0 12px;font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.04em}
.foot-col a{display:block;margin-bottom:8px;font-size:14px;color:var(--muted)}
.foot-col a:hover{color:var(--brand)}
.foot-legal p{margin:0 0 8px;font-size:13.5px}
.foot-legal a{color:var(--muted)}
.foot-legal a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- legal pages ---------- */
.legal{padding:64px 0 20px}
.legal h1{margin:0;font-size:clamp(28px,3.6vw,38px);letter-spacing:-.02em;line-height:1.25}
.legal .updated{margin:12px 0 0;font-size:13.5px;color:var(--muted)}
.legal .intro{margin:30px 0 0;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:14px;font-size:15px;color:var(--ink2)}
.legal h2{margin:40px 0 12px;font-size:19.5px;letter-spacing:-.01em}
.legal h3{margin:26px 0 8px;font-size:16.5px}
.legal p{margin:12px 0;font-size:15.5px;color:var(--ink2);line-height:1.85}
.legal ul,.legal ol{margin:12px 0;padding-left:24px}
.legal li{margin:6px 0;font-size:15.5px;color:var(--ink2);line-height:1.8}
.legal strong{color:var(--ink)}
.legal .table-wrap{overflow-x:auto;margin:18px 0}
.legal table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.legal th,.legal td{
  text-align:left;padding:11px 14px;
  border:1px solid var(--line);vertical-align:top;color:var(--ink2);
}
.legal th{background:#f4efe6;color:var(--ink);font-weight:600}

/* ---------- brand mark ---------- */
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  object-fit:cover;
  box-shadow:0 4px 12px rgba(214,45,35,.18);
}

/* ---------- qr codes ---------- */
.cta-contact{display:flex;align-items:center;gap:18px;flex:none}
.cta-qr{
  width:128px;height:128px;padding:6px;border-radius:14px;background:#fff;
  box-shadow:0 16px 34px rgba(0,0,0,.3);
}
.cta-qr img{width:100%;height:100%;border-radius:9px;display:block}
.cta-contact-text{display:flex;flex-direction:column;gap:4px;max-width:190px}
.cta-contact-text strong{font-size:14.5px;color:#fff;letter-spacing:.01em}
.cta-contact-text span{font-size:12.5px;color:rgba(255,255,255,.52);line-height:1.5}
.cta-contact-text a{font-size:12.5px;color:rgba(255,255,255,.82);word-break:break-all;line-height:1.5}
.cta-contact-text a:hover{color:#fff}

.contact-qr{display:flex;align-items:center;gap:26px;margin-top:20px}
.contact-qr .qr-img{
  width:140px;height:140px;padding:8px;flex:none;
  border-radius:14px;background:#fff;border:1px solid var(--line);
}
.contact-qr div{min-width:0}
.contact-qr p{margin:10px 0 0}

@media (max-width:960px){
  .cta-contact{width:100%}
}

@media (max-width:720px){
  .cta-contact{gap:14px}
  .cta-qr{width:104px;height:104px}
  .cta-contact-text{max-width:none}
  .contact-qr{flex-direction:column;align-items:flex-start;gap:18px}
}

/* ---------- qr popover (native details, no JS) ---------- */
.qr-trigger{position:relative}
.qr-trigger>summary{
  list-style:none;cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}
.qr-trigger>summary::-webkit-details-marker{display:none}
.qr-trigger>summary::marker{content:""}

.qr-pop{
  position:absolute;z-index:80;
  padding:16px;border-radius:16px;
  background:var(--card);border:1px solid var(--line);
  box-shadow:0 22px 46px -14px rgba(23,27,38,.34);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  width:max-content;max-width:min(78vw,240px);
}
.qr-pop img{
  width:150px;height:150px;border-radius:10px;
  background:#fff;display:block;
}
.qr-pop span{font-size:12.5px;color:var(--muted);line-height:1.55;text-align:center}

/* header variant */
.head-contact .qr-pop{right:0;top:calc(100% + 12px)}
.head-contact[open] .head-cta{background:var(--brand)}

/* hero variant */
.hero-actions .qr-trigger .qr-pop{left:0;top:calc(100% + 12px)}

@media (max-width:720px){
  .qr-pop img{width:124px;height:124px}
}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero{padding:56px 0 56px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
}

@media (max-width:720px){
  body{font-size:16px}
  .nav{gap:18px}
  .nav a{font-size:14px}
  .head-cta{display:none}
  .head-inner{height:64px}
  .section{padding:56px 0}
  .steps{grid-template-columns:1fr}
  .quote{padding:26px 24px}
  .foot-inner{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:20px}
  .qr-card{right:0;bottom:-24px}
  .mc-amount{font-size:38px}
}

@media (max-width:420px){
  .brand small{display:none}
  .nav a:nth-child(3){display:none}
}