:root{
  --ink:#08282b;
  --teal:#0a3f40;
  --teal2:#135b59;
  --gold:#d7b46a;
  --gold2:#f1d99a;
  --jade:#dbe8dd;
  --paper:#f5efdf;
  --paper2:#fbf7eb;
  --muted:#6e7972;
  --shadow: 0 24px 80px rgba(3,31,33,.28);
  --radius: clamp(18px, 5vw, 30px);
  --space: clamp(16px, 4vw, 34px);
  --max: 980px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: "Songti SC","Noto Serif SC","PingFang SC","Microsoft YaHei",serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 12% 4%, rgba(215,180,106,.18), transparent 36%),
    radial-gradient(circle at 85% 9%, rgba(19,91,89,.22), transparent 35%),
    linear-gradient(180deg,#071f21 0,#0b3032 22%,#f5efdf 22%,#fbf7eb 100%);
}
.scroll-progress{
  position:fixed;left:0;top:0;width:100%;height:4px;z-index:50;background:rgba(255,255,255,.08)
}
.scroll-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),#fff1bb,var(--gold));box-shadow:0 0 18px rgba(215,180,106,.65)}
.hero{
  position:relative;min-height:100svh;overflow:hidden;background:
  radial-gradient(circle at 50% 12%,rgba(245,239,223,.12),transparent 36%),
  linear-gradient(180deg,#061f21 0%,#0d3e3f 68%,#f5efdf 100%);
  color:var(--paper2);padding:calc(env(safe-area-inset-top) + 26px) var(--space) 46px;
}
.hero:after{content:"";position:absolute;inset:auto 0 0;height:32%;background:linear-gradient(180deg,transparent,#f5efdf);pointer-events:none}
.hero__inner{position:relative;z-index:2;max-width:var(--max);margin:0 auto;display:flex;flex-direction:column;align-items:center;text-align:center}
.hero__mountain{position:absolute;inset:auto -10% -3% -10%;width:120%;opacity:.45;filter:saturate(1.2)}
.hero__cloud{position:absolute;width:min(90vw,720px);opacity:.45}
.hero__cloud--a{left:-22%;top:8%;transform:rotate(5deg)}
.hero__cloud--b{right:-35%;top:24%;transform:scaleX(-1) rotate(-10deg)}
.brand-pill{
  border:1px solid rgba(215,180,106,.56);color:var(--gold2);padding:10px 15px;border-radius:999px;
  letter-spacing:.08em;font-size:clamp(12px,3.2vw,15px);background:rgba(3,31,33,.28);backdrop-filter:blur(10px)
}
.brand-mark{width:min(88vw,560px);margin:34px auto 18px}
.brand-mark img{width:100%;display:block}
h1{
  margin:8px 0 12px;font-size:clamp(45px,14vw,118px);line-height:.98;letter-spacing:.04em;
  text-shadow:0 10px 40px rgba(0,0,0,.25)
}
h1 em{font-style:normal;color:var(--gold2)}
.hero__lead{font-size:clamp(16px,4.2vw,24px);line-height:1.75;max-width:760px;color:rgba(251,247,235,.86);margin:0 auto 24px}
.hero__proposition{
  position:relative;margin-top:12px;padding:20px 20px 22px;border-radius:var(--radius);border:1px solid rgba(215,180,106,.55);
  background:linear-gradient(145deg,rgba(4,37,40,.84),rgba(10,63,64,.72));box-shadow:var(--shadow);overflow:hidden;max-width:820px
}
.hero__proposition img{position:absolute;right:-28px;bottom:-42px;width:150px;opacity:.44}
.hero__proposition p{position:relative;margin:0;font-size:clamp(18px,5vw,30px);line-height:1.65;font-weight:700;color:#fff}
.hero__proposition span{color:var(--gold2)}
.hero__metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:min(92vw,620px);margin-top:22px}
.hero__metrics b,.hero__metrics span{display:block}
.hero__metrics b{font-size:clamp(26px,9vw,52px);color:var(--gold2)}
.hero__metrics span{font-size:12px;color:rgba(251,247,235,.72);letter-spacing:.1em}
.sticky-nav{
  position:sticky;top:4px;z-index:40;margin:-18px auto 0;width:min(calc(100% - 20px),var(--max));
  display:flex;gap:8px;overflow-x:auto;padding:9px;border-radius:999px;background:rgba(245,239,223,.72);
  backdrop-filter: blur(16px);box-shadow:0 12px 38px rgba(5,42,44,.16);border:1px solid rgba(215,180,106,.38)
}
.sticky-nav a{flex:0 0 auto;text-decoration:none;color:var(--teal);font-weight:800;padding:9px 13px;border-radius:999px;font-size:14px}
.sticky-nav a.active{background:var(--teal);color:var(--paper);box-shadow:0 8px 20px rgba(10,63,64,.22)}
main{max-width:var(--max);margin:0 auto;padding:22px var(--space) 70px}
.section-label{
  display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:13px;font-weight:900;letter-spacing:.16em;
  padding:8px 12px;border-radius:999px;border:1px solid rgba(215,180,106,.55);background:rgba(255,255,255,.58)
}
.strategy-panel,.action-pack{
  margin:34px 0;padding:clamp(20px,5vw,38px);border-radius:var(--radius);
  background:rgba(255,255,255,.68);border:1px solid rgba(215,180,106,.34);box-shadow:0 18px 55px rgba(8,40,43,.11);
  position:relative;overflow:hidden
}
.strategy-panel:before,.action-pack:before{content:"";position:absolute;inset:0;background:url("./assets/svg/cloud-line.svg") no-repeat 120% -30%/60%;opacity:.15;pointer-events:none}
.strategy-panel h2,.action-pack h2{font-size:clamp(28px,8vw,54px);line-height:1.18;margin:16px 0 14px;color:var(--teal)}
.strategy-panel p,.action-pack p,.checklist{font-size:clamp(15px,4vw,19px);line-height:1.85;color:#263f40}
.logic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.logic-grid article{
  padding:16px;border-radius:20px;background:linear-gradient(180deg,#fffaf0,#efe6d3);
  border:1px solid rgba(215,180,106,.35)
}
.logic-grid span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--teal);color:var(--gold2);font-weight:900;margin-bottom:9px}
.logic-grid strong{display:block;font-size:18px;color:var(--teal)}
.logic-grid p{font-size:14px;margin:7px 0 0;line-height:1.55}
.waterfall{display:grid;grid-template-columns:1fr;gap:22px;align-items:start}
.card{
  position:relative;border-radius:calc(var(--radius) + 2px);overflow:hidden;background:rgba(255,255,255,.8);
  border:1px solid rgba(215,180,106,.42);box-shadow:0 20px 64px rgba(8,40,43,.16);
  transform:translateY(18px);opacity:0;transition:opacity .7s ease, transform .7s ease
}
.card.is-visible{opacity:1;transform:translateY(0)}
.card__image{display:block;width:100%;height:auto;background:#eee7d5}
.card__body{padding:20px;background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(245,239,223,.96))}
.card__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card__tag{font-weight:900;color:var(--gold);background:var(--teal);padding:7px 11px;border-radius:999px;font-size:13px}
.card__kicker{font-size:13px;color:var(--muted);letter-spacing:.12em}
.card h3{font-size:clamp(25px,7vw,42px);line-height:1.2;margin:13px 0 8px;color:var(--teal)}
.card__subtitle{font-weight:900;color:#956c20;margin:0 0 12px}
.card__summary{font-size:clamp(15px,4vw,18px);line-height:1.8;margin:0;color:#2a4445}
.card__points{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0;padding:0;list-style:none}
.card__points li{font-size:13px;font-weight:800;color:var(--teal);border:1px solid rgba(10,63,64,.16);background:#f8f0df;padding:8px 10px;border-radius:999px}
.card__button{
  margin-top:16px;width:100%;border:0;border-radius:18px;background:linear-gradient(135deg,var(--teal),#0f6360);
  color:#fff3c1;font-weight:900;padding:14px 16px;font-size:15px;letter-spacing:.06em
}
.card__details{display:none;margin-top:14px;padding:14px;border-radius:18px;background:#fffaf0;border:1px solid rgba(215,180,106,.35);line-height:1.8;color:#314647}
.card__details.open{display:block}
.checklist{padding-left:1.2em}
.checklist li{margin:10px 0}
.cta{
  display:inline-flex;margin-top:12px;text-decoration:none;background:linear-gradient(135deg,var(--teal),#0f6865);
  color:#fff3c1;border-radius:999px;padding:14px 20px;font-weight:900;box-shadow:0 16px 36px rgba(10,63,64,.24)
}
.footer{text-align:center;padding:32px 22px 44px;color:#e8dec8;background:#062225;font-size:13px;line-height:1.7}
.top-button{
  position:fixed;right:16px;bottom:calc(env(safe-area-inset-bottom) + 18px);z-index:42;
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(215,180,106,.46);
  background:rgba(10,63,64,.9);color:var(--gold2);font-size:22px;box-shadow:0 14px 38px rgba(0,0,0,.25);display:none
}
.top-button.show{display:block}
@media (min-width:760px){
  .waterfall{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .card:nth-child(even){margin-top:80px}
}
@media (min-width:1100px){
  body{background:linear-gradient(180deg,#082629 0,#0b3335 18%,#f5efdf 18%,#fbf7eb 100%)}
}
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
  .card{opacity:1;transform:none}
}