/* ============================================================
   Four Pillars — shared stylesheet
   纸感米白 / 墨黑 / 铜金。标题 serif，正文 sans。
   ============================================================ */

:root{
  --paper:#f4f1ea;
  --paper-2:#eae5da;
  --ink:#14110f;
  --ink-2:#3d3733;
  --muted:#7a726a;
  --line:#d9d2c4;
  --gold:#a8823f;
  --gold-soft:#f0e6d2;
  --red:#9c3b2e;
  --white:#fffdf9;

  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
.narrow{max-width:760px}

a{color:inherit;text-decoration:none}
a:hover{color:var(--gold)}

/* ---------- nav ---------- */
.nav{
  border-bottom:1px solid var(--line);
  background:rgba(244,241,234,.92);
  backdrop-filter:blur(10px);
  position:sticky;top:0;z-index:50;
}
.nav-in{
  max-width:1080px;margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  font-family:var(--serif);font-size:19px;letter-spacing:.02em;font-weight:600;
  display:flex;align-items:center;gap:9px;
}
.brand .mark{
  width:22px;height:22px;border:1.5px solid var(--ink);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-family:var(--serif);
}
.nav-links{display:flex;gap:26px;font-size:14px;color:var(--ink-2)}
.nav-links a{transition:color .15s}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;padding:13px 26px;border-radius:2px;
  font-size:14px;font-weight:600;letter-spacing:.03em;
  border:1px solid var(--ink);background:var(--ink);color:var(--paper);
  cursor:pointer;transition:all .18s ease;font-family:var(--sans);
}
.btn:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.lg{padding:16px 34px;font-size:15px}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* ---------- hero ---------- */
.hero{
  padding:56px 0 0;border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1fr .84fr;gap:48px;
  align-items:center;
}
.hero-copy{padding:32px 0 72px}
.hero h1{font-size:clamp(27px,3vw,38px);max-width:none;line-height:1.22;text-wrap:balance}

.hero-art{position:relative;margin:0;align-self:end}
.hero-art picture{
  display:block;position:relative;z-index:1;
  /* 左右与顶部羽化，让画面融进纸面，只在底部落地 */
  -webkit-mask-image:
    linear-gradient(to right, transparent 0, #000 12%, #000 88%, transparent 100%),
    linear-gradient(to bottom, transparent 0, #000 11%, #000 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to right, transparent 0, #000 12%, #000 88%, transparent 100%),
    linear-gradient(to bottom, transparent 0, #000 11%, #000 100%);
  mask-composite: intersect;
}
.hero-art img{
  width:100%;height:auto;display:block;
  max-height:700px;object-fit:contain;object-position:bottom;
}
/* 树冠上方的暖光，营造"被遮护"的感觉 */
.hero-art::before{
  content:'';position:absolute;left:-18%;right:-18%;top:-10%;height:58%;
  background:radial-gradient(ellipse at 50% 32%, rgba(168,130,63,.26), rgba(168,130,63,0) 70%);
  pointer-events:none;z-index:0;
}
.hero-art figcaption{
  font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);text-align:center;padding:16px 0 28px;
}
.eyebrow{
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);font-weight:700;margin-bottom:22px;
}
h1{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(38px,5.4vw,62px);line-height:1.14;letter-spacing:-.015em;
  max-width:15ch;
}
h1 em{font-style:italic;color:var(--gold)}
.hero p.lead{
  font-size:18px;color:var(--ink-2);max-width:52ch;margin-top:26px;line-height:1.65;
}
.hero-cta{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap;align-items:center}
.hero-note{font-size:13px;color:var(--muted);margin-top:14px}

/* glyph cluster */
.glyphs{
  position:absolute;right:-20px;top:50%;transform:translateY(-50%);
  display:grid;grid-template-columns:repeat(2,1fr);gap:6px;
  font-family:var(--serif);font-size:clamp(40px,6vw,72px);
  color:var(--line);line-height:1;pointer-events:none;user-select:none;
}
.glyphs span:nth-child(odd){color:#d2c9b6}

/* ---------- section ---------- */
section{padding:72px 0}
section + section{border-top:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:640px}
h2{
  font-family:var(--serif);font-weight:400;font-size:clamp(26px,3.2vw,36px);
  line-height:1.25;letter-spacing:-.01em;
}
.sec-head p{color:var(--muted);margin-top:12px;font-size:15px}

/* ---------- grid cards ---------- */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:3px;
  padding:26px 24px;
}
.card h3{font-family:var(--serif);font-weight:600;font-size:18px;margin-bottom:9px}
.card p{font-size:14.5px;color:var(--ink-2);line-height:1.65}
.step-n{
  font-family:var(--serif);font-size:13px;color:var(--gold);
  letter-spacing:.1em;margin-bottom:14px;display:block;
}

/* ---------- comparison ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);background:var(--white)}
.compare > div{padding:26px 24px}
.compare > div:first-child{border-right:1px solid var(--line)}
.compare h4{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:16px;font-weight:700;
}
.compare ul{list-style:none;font-size:14.5px}
.compare li{padding:9px 0 9px 22px;position:relative;border-bottom:1px dashed var(--line);color:var(--ink-2)}
.compare li:last-child{border-bottom:none}
.compare li::before{content:"—";position:absolute;left:0;color:var(--muted)}
.compare .ours li::before{content:"→";color:var(--gold);font-weight:700}

/* ---------- form ---------- */
.form-card{
  background:var(--white);border:1px solid var(--line);padding:34px 32px;border-radius:3px;
}
.field{margin-bottom:22px}
.field label{
  display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-2);font-weight:700;margin-bottom:8px;
}
.field .hint{font-size:12.5px;color:var(--muted);font-weight:400;text-transform:none;letter-spacing:0;margin-top:5px;display:block}
input[type="text"],input[type="date"],input[type="time"],input[type="email"],select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:2px;
  background:var(--paper);font-size:15px;font-family:var(--sans);color:var(--ink);
  transition:border-color .15s;
}
input:focus,select:focus{outline:none;border-color:var(--gold)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);margin:18px 0}
.checkline input{margin-top:4px;accent-color:var(--gold);flex:none}

/* 表单内错误提示 */
.form-msg{
  display:none;font-size:13.5px;color:var(--red);background:#fcf0ee;
  border:1px solid #f0d5d1;border-left:3px solid var(--red);border-radius:2px;
  padding:11px 14px;margin-bottom:14px;line-height:1.55;
}
.form-msg.show{display:block}

/* ---------- result ---------- */
.result{margin-top:0}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:34px 0}
.pillar{
  background:var(--white);border:1px solid var(--line);border-radius:3px;
  padding:22px 10px;text-align:center;
}
.pillar .pos{
  font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;
}
.pillar .gz{
  font-family:var(--serif);font-size:38px;line-height:1.15;letter-spacing:.04em;
}
.pillar .rom{font-size:11.5px;color:var(--muted);margin-top:10px;letter-spacing:.04em}
.pillar.dm{border-color:var(--gold);background:var(--gold-soft)}
.pillar.dm .pos{color:var(--gold)}

.dm-block{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:36px 0;margin:36px 0;
}
.dm-block .kicker{
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
  font-weight:700;margin-bottom:14px;
}
.dm-block h2{font-size:clamp(28px,4vw,42px);margin-bottom:8px}
.dm-block .sub{font-family:var(--serif);font-style:italic;color:var(--muted);font-size:18px}
.dm-block p{margin-top:20px;color:var(--ink-2);max-width:66ch}

/* element bars */
.elements{display:grid;gap:14px;margin-top:26px}
.el-row{display:grid;grid-template-columns:64px 1fr 38px;gap:14px;align-items:center;font-size:13px}
.el-name{letter-spacing:.06em;font-weight:600}
.el-track{height:9px;background:var(--paper-2);border-radius:1px;overflow:hidden}
.el-fill{height:100%;background:var(--ink);transition:width .8s cubic-bezier(.2,.8,.2,1)}
.el-fill.fav{background:var(--gold)}
.el-row .n{text-align:right;color:var(--muted);font-size:12.5px;font-variant-numeric:tabular-nums}

/* verdict */
.verdict{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--paper-2);border-left:3px solid var(--gold);padding:22px 24px;margin-top:30px;
}
.verdict .lbl{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700;flex:none;padding-top:3px}
.verdict p{font-size:14.5px;color:var(--ink-2);margin:0}

/* locked preview */
.locked{
  border:1px dashed var(--line);border-radius:3px;padding:28px 26px;margin-top:36px;
  background:var(--white);
}
.locked h3{font-family:var(--serif);font-size:20px;margin-bottom:6px;font-weight:600}
.locked .price{font-family:var(--serif);font-size:32px;margin:14px 0 6px}
.locked .price small{font-size:14px;color:var(--muted);font-family:var(--sans)}
.locked ul{list-style:none;margin:18px 0 24px;font-size:14px;color:var(--ink-2)}
.locked li{padding:7px 0 7px 20px;position:relative}
.locked li::before{content:"·";position:absolute;left:4px;color:var(--gold);font-weight:700;font-size:20px;line-height:1.2}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.plan{
  background:var(--white);border:1px solid var(--line);border-radius:3px;
  padding:30px 26px;display:flex;flex-direction:column;height:100%;
}
.plan.feat{border-color:var(--ink);border-width:1.5px;position:relative}
.plan.feat::after{
  content:"MOST CHOSEN";position:absolute;top:-11px;left:26px;
  background:var(--ink);color:var(--paper);font-size:9.5px;letter-spacing:.14em;
  padding:4px 9px;font-weight:700;
}
.plan .name{font-family:var(--serif);font-size:20px;font-weight:600;margin-bottom:6px}
.plan .desc{font-size:13.5px;color:var(--muted);min-height:42px}
.plan .amt{font-family:var(--serif);font-size:42px;margin:18px 0 2px;letter-spacing:-.02em}
.plan .amt span{font-size:15px;color:var(--muted);font-family:var(--sans)}
.plan .once{font-size:12px;color:var(--muted);margin-bottom:22px}
.plan ul{list-style:none;font-size:14px;flex:1;margin-bottom:24px}
.plan li{padding:8px 0;border-bottom:1px dashed var(--line);color:var(--ink-2)}
.plan li:last-child{border-bottom:none}

/* ---------- legal ---------- */
.legal{padding:64px 0 80px}
.legal h1{font-size:clamp(30px,4vw,42px);max-width:none;margin-bottom:10px}
.legal .updated{font-size:13px;color:var(--muted);margin-bottom:40px}
.legal h2{font-size:20px;margin:38px 0 12px}
.legal h3{font-size:16px;margin:26px 0 8px;font-weight:600}
.legal p,.legal li{font-size:15px;color:var(--ink-2);margin-bottom:12px}
.legal ul,.legal ol{padding-left:22px;margin-bottom:16px}
.legal li{margin-bottom:8px}
.legal .box{
  background:var(--white);border:1px solid var(--line);padding:20px 22px;margin:22px 0;
  font-size:14px;color:var(--ink-2);
}
.legal .box strong{color:var(--ink)}

/* ---------- faq ---------- */
details{border-bottom:1px solid var(--line);padding:18px 0}
details summary{
  cursor:pointer;font-family:var(--serif);font-size:17px;list-style:none;
  display:flex;justify-content:space-between;gap:20px;align-items:center;
}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--gold);font-size:20px;font-family:var(--sans)}
details[open] summary::after{content:"−"}
details p{font-size:14.5px;color:var(--ink-2);margin-top:12px;max-width:70ch}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:44px 0 56px;background:var(--paper-2)}
.foot-grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:32px}
.foot-brand{font-family:var(--serif);font-size:17px;margin-bottom:8px}
.foot-links{display:flex;gap:22px;font-size:13.5px;color:var(--ink-2);flex-wrap:wrap}
.disclaimer{
  font-size:11.5px;color:var(--muted);line-height:1.7;max-width:100%;
  border-top:1px solid var(--line);padding-top:22px;
}

/* ---------- util ---------- */
.mt0{margin-top:0}.mt1{margin-top:10px}.mt2{margin-top:20px}.mt3{margin-top:32px}.mt4{margin-top:48px}
.center{text-align:center}
.hide{display:none}
.small{font-size:13px;color:var(--muted)}

/* toast */
#toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:var(--paper);padding:12px 22px;border-radius:2px;
  font-size:13.5px;opacity:0;pointer-events:none;transition:all .25s;z-index:200;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .g3,.plans{grid-template-columns:1fr}
  .g2,.compare{grid-template-columns:1fr}
  .compare > div:first-child{border-right:none;border-bottom:1px solid var(--line)}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .glyphs{display:none}
  .row2{grid-template-columns:1fr}
  .hero{padding:28px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:0}
  .hero-copy{padding:0 0 52px}
  .hero-art{order:-1;max-width:280px;margin:0 auto;align-self:auto}
  .hero-art img{max-height:320px}
  .hero-art picture{
    -webkit-mask-image:
      linear-gradient(to right, transparent 0, #000 17%, #000 83%, transparent 100%),
      linear-gradient(to bottom, transparent 0, #000 13%, #000 100%);
    mask-image:
      linear-gradient(to right, transparent 0, #000 17%, #000 83%, transparent 100%),
      linear-gradient(to bottom, transparent 0, #000 13%, #000 100%);
  }
  .hero-art figcaption{padding:10px 0 20px}
  .hero h1{max-width:none}
  section{padding:52px 0}
  .form-card{padding:26px 20px}
}

/* ============================================================
   Purple Star board
   ============================================================ */
.zw-board{
  display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,minmax(98px,auto));
  border:1px solid var(--ink);background:var(--white);margin:34px 0;
}
.zw-cell{
  border:1px solid var(--line);padding:10px 11px;
  display:flex;flex-direction:column;gap:5px;min-height:100px;
}
.zw-cell.is-life{background:var(--gold-soft);border-color:var(--gold);box-shadow:inset 0 0 0 1.5px var(--gold)}
.zw-head{display:flex;justify-content:space-between;align-items:baseline;gap:6px}
.zw-pal{font-size:10px;letter-spacing:.11em;text-transform:uppercase;color:var(--muted);font-weight:700}
.zw-br{font-size:9.5px;color:#b3aa9b;white-space:nowrap}
.zw-stars{flex:1;display:flex;flex-direction:column;gap:2px;justify-content:center}
.zw-star{font-family:var(--serif);font-size:14px;line-height:1.3}
.zw-star.major{font-size:15px;font-weight:600}
.zw-b{font-style:normal;font-size:8.5px;color:#a9a093;margin-left:4px;letter-spacing:.04em}
.zw-mu{font-style:normal;font-size:8.5px;color:var(--gold);margin-left:3px;letter-spacing:.04em}
.zw-empty{font-size:10.5px;color:#c6bfb1;font-style:italic}
.zw-minors{font-size:9.5px;color:#a49b8c;line-height:1.4}
.zw-dec{font-size:9px;color:#c0b8aa;letter-spacing:.04em}
.zw-center{
  grid-row:2/4;grid-column:2/4;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:5px;padding:18px;text-align:center;
}
.zw-c-kicker{font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:700}
.zw-c-name{font-family:var(--serif);font-size:26px;line-height:1.2;margin:3px 0}
.zw-c-row{font-size:11px;color:var(--muted)}

/* segmented radio */
.seg{display:flex;gap:0;border:1px solid var(--line);border-radius:2px;overflow:hidden;background:var(--paper)}
.seg label{
  flex:1;text-align:center;padding:11px 8px;font-size:14px;cursor:pointer;
  color:var(--ink-2);transition:all .15s;letter-spacing:0;text-transform:none;font-weight:500;
  margin:0;
}
.seg label + label{border-left:1px solid var(--line)}
.seg input{display:none}
.seg input:checked + span{color:var(--paper)}
.seg label:has(input:checked){background:var(--ink);color:var(--paper)}

@media(max-width:640px){
  .zw-board{grid-template-rows:repeat(4,minmax(70px,auto))}
  .zw-cell{padding:6px 6px;min-height:72px;gap:3px}
  .zw-star{font-size:10.5px}
  .zw-star.major{font-size:11px}
  .zw-pal{font-size:8px;letter-spacing:.06em}
  .zw-br{font-size:7.5px}
  .zw-b,.zw-mu{display:none}
  .zw-minors{display:none}
  .zw-dec{display:none}
  .zw-empty{font-size:8.5px}
  .zw-c-name{font-size:16px}
  .zw-c-kicker{font-size:7.5px;letter-spacing:.12em}
  .zw-c-row{font-size:8.5px}
  .zw-center{padding:8px;gap:2px}
}

/* 付费按钮组 */
.buy-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:4px}
.buy-row .btn{flex:1;min-width:180px;text-align:center}