/* MS08 Ostra — 私人岛屿度假村，canvas 波纹 + 玻璃预订条 */
:root{
  --deep:#06212b;
  --deep-2:#0a303d;
  --deep-3:#04161d;
  --sand:#e6d7b8;
  --sand-2:#c9b48c;
  --sand-3:#9c8a69;
  --foam:rgba(226,244,244,.86);
  --ink:#f4f1e9;
  --muted:#9fb3b6;
  --muted-2:#6e868a;
  --line:rgba(230,215,184,.18);
  --glass:rgba(255,255,255,.09);
  --glass-2:rgba(255,255,255,.15);
  --pad:clamp(18px,4.4vw,60px);
  --max:1360px;
  --serif:"Songti SC","SimSun",Georgia,"Times New Roman",serif;
  --sans:"Segoe UI",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--deep-3);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.66;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{position:relative;z-index:2}

/* ---------- 顶栏 ---------- */
.head{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;
  justify-content:space-between;gap:22px;padding:20px var(--pad);
  transition:background .4s,backdrop-filter .4s,padding .4s,border-color .4s;
  border-bottom:1px solid transparent}
.head.solid{background:rgba(6,33,43,.72);backdrop-filter:blur(20px) saturate(150%);
  border-bottom-color:var(--line);padding-top:13px;padding-bottom:13px}
.brand{font-family:var(--serif);font-size:17px;letter-spacing:.4em;text-transform:uppercase}
.head nav ul{display:flex;gap:clamp(14px,2.4vw,34px);list-style:none;margin:0;padding:0}
.head nav a{font-size:11px;letter-spacing:.16em;color:#cfdcdc;position:relative;padding-bottom:3px}
.head nav a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--sand);transition:width .32s}
.head nav a:hover::after,.head nav a.on::after{width:100%}
.head nav a.on{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 20px;
  border-radius:999px;font:inherit;font-size:11.5px;letter-spacing:.12em;cursor:pointer;
  border:1px solid var(--line);background:var(--glass);color:var(--ink);
  backdrop-filter:blur(10px);transition:background .25s,border-color .25s,transform .2s,box-shadow .25s}
.btn:hover{background:var(--glass-2);border-color:rgba(230,215,184,.44);transform:translateY(-1px)}
.btn-sand{background:linear-gradient(180deg,#efdfc0,var(--sand-2));border-color:transparent;
  color:#1a1510;box-shadow:0 8px 22px -10px rgba(201,180,140,.7)}
.btn-sand:hover{background:linear-gradient(180deg,#f6e8cd,#d6c19a);
  box-shadow:0 12px 28px -10px rgba(201,180,140,.8)}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;
  justify-content:flex-end;padding:0 var(--pad) clamp(28px,5vh,52px);overflow:hidden}
.sea{position:absolute;inset:0;z-index:0;overflow:hidden;
  background:linear-gradient(180deg,#0d3d4d 0%,#0b3542 34%,#0a2a35 58%,#06202a 100%)}
.sea .sun{position:absolute;left:62%;top:16%;width:52vw;height:52vw;transform:translate(-50%,-30%);
  background:radial-gradient(circle,rgba(255,236,198,.5),rgba(255,214,150,.16) 34%,transparent 66%);
  filter:blur(18px)}
.sea .island{position:absolute;left:8%;bottom:44%;width:26%;height:7%;
  background:radial-gradient(60% 100% at 50% 100%,rgba(4,20,26,.9),rgba(4,20,26,.4) 62%,transparent 78%);
  filter:blur(2px)}
.sea .island.b{left:auto;right:4%;bottom:47%;width:18%;height:5%;opacity:.7}
.sea .horizon{position:absolute;left:0;right:0;top:52%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,240,214,.5) 40%,rgba(255,240,214,.5) 60%,transparent)}
.sea canvas{position:absolute;left:0;right:0;bottom:0;width:100%;height:52%;display:block}
.sea .shade{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,22,29,.66) 0%,transparent 34%,rgba(4,22,29,.5) 82%,rgba(4,22,29,.9) 100%)}

.hero-top{position:absolute;left:var(--pad);right:var(--pad);top:clamp(88px,12vh,120px);z-index:2;
  display:flex;justify-content:space-between;gap:20px;align-items:flex-start;flex-wrap:wrap}
.hero-top .k{font-size:9.5px;letter-spacing:.26em;text-transform:uppercase;color:#a8bcbe}
.hero-copy{position:relative;z-index:2;max-width:760px;margin-bottom:clamp(22px,3.6vh,38px)}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:9.5px;
  letter-spacing:.26em;text-transform:uppercase;color:var(--sand)}
.hero-copy .eyebrow::before{content:"";width:20px;height:1px;background:var(--sand);display:block}
.hero h1{margin:18px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(2.2rem,6vw,4.6rem);line-height:1.06;letter-spacing:-.01em}
.hero h1 em{font-style:italic;color:var(--sand)}
.hero .sub{margin:20px 0 0;max-width:46ch;font-size:14px;line-height:1.86;color:#cfdcdc}

/* 玻璃预订条 */
.booking{position:relative;z-index:3;display:grid;
  grid-template-columns:1.1fr 1.1fr 1.2fr auto;gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:4px;overflow:hidden;
  backdrop-filter:blur(22px) saturate(150%);max-width:1020px}
.booking .f{background:rgba(12,44,55,.72);padding:14px 18px;display:flex;flex-direction:column;gap:5px;
  transition:background .25s}
.booking .f:hover{background:rgba(16,56,69,.82)}
.booking .f label{font-size:8.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted-2)}
.booking .f input,.booking .f select{background:transparent;border:0;color:var(--ink);
  font:inherit;font-size:13.5px;padding:0;outline:0;width:100%}
.booking .f select option{background:#0a2a35;color:#f4f1e9}
.booking .go{background:rgba(12,44,55,.85);display:flex;align-items:center;padding:10px}
.booking .go .btn{width:100%;border-radius:2px}

/* ---------- 区块 ---------- */
.sec{padding:clamp(62px,10vh,124px) 0;position:relative}
.inner{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.sec-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:clamp(26px,4vw,50px)}
.sec-top h2{margin:0;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.5rem,3.2vw,2.4rem);letter-spacing:-.005em}
.sec-top .tag{font-size:9px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted-2)}

/* 房型卡 */
.villas{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,2vw,24px)}
.villa{display:block;border:1px solid var(--line);border-radius:3px;overflow:hidden;
  background:rgba(255,255,255,.03);transition:border-color .3s,transform .3s,background .3s}
.villa:hover{border-color:rgba(230,215,184,.44);transform:translateY(-3px);
  background:rgba(255,255,255,.06)}
.villa .img{position:relative;aspect-ratio:4/3;overflow:hidden;
  background:linear-gradient(178deg,#0f4a5c,#0a2c38 62%,#07222b)}
.villa .img::after{content:"";position:absolute;inset:0;
  background:
    radial-gradient(40% 26% at 50% 34%,rgba(255,240,214,.24),transparent 62%),
    repeating-linear-gradient(92deg,rgba(200,235,235,.06) 0 1px,transparent 1px 8px),
    linear-gradient(180deg,transparent 52%,rgba(230,215,184,.14) 54%,transparent 62%)}
.villa .img .roof{position:absolute;left:16%;bottom:24%;width:68%;height:16%;
  background:linear-gradient(180deg,#c9b48c,#8b7a5c);
  clip-path:polygon(0 100%,50% 0,100% 100%);opacity:.9}
.villa .img .deck{position:absolute;left:22%;bottom:16%;width:56%;height:3%;
  background:rgba(230,215,184,.5)}
.villa .body{padding:18px 18px 22px}
.villa .body h3{margin:0;font-family:var(--serif);font-size:clamp(1.05rem,1.8vw,1.3rem);
  font-weight:400}
.villa .body p{margin:8px 0 0;font-size:12px;line-height:1.75;color:var(--muted)}
.villa .body .row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  margin-top:16px;padding-top:13px;border-top:1px solid var(--line)}
.villa .body .pr{font-family:var(--serif);font-size:17px;color:var(--sand)}
.villa .body .pr small{font-size:10.5px;color:var(--muted-2);font-family:var(--sans)}

/* 双栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,74px);align-items:center}
.prose p{margin:0 0 16px;font-size:14px;line-height:1.95;color:#c4d2d3;max-width:52ch}
.prose p:last-child{margin-bottom:0}
.pull{margin:26px 0;padding-left:20px;border-left:1px solid var(--sand);
  font-family:var(--serif);font-size:clamp(1.05rem,2vw,1.4rem);line-height:1.68;color:#f0e8d8}
.vis{position:relative;aspect-ratio:4/3;border-radius:3px;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(178deg,#0f4a5c,#0a2c38 62%,#07222b)}
.vis::after{content:"";position:absolute;inset:0;
  background:radial-gradient(46% 34% at 52% 22%,rgba(255,240,214,.26),transparent 64%),
    repeating-linear-gradient(94deg,rgba(200,235,235,.05) 0 1px,transparent 1px 9px)}
.vis .cap{position:absolute;left:14px;bottom:12px;font-size:9px;letter-spacing:.2em;
  text-transform:uppercase;color:#d8e4e4;z-index:2}

/* 体验清单 */
.exp{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:3px;overflow:hidden}
.ex{background:#082632;padding:24px 22px;min-height:190px;display:flex;flex-direction:column;
  gap:10px;transition:background .26s}
.ex:hover{background:#0b2f3d}
.ex .ic{font-size:17px;color:var(--sand)}
.ex h3{margin:4px 0 0;font-size:15px;font-weight:500}
.ex p{margin:0;font-size:12.5px;line-height:1.74;color:var(--muted)}
.ex .tm{margin-top:auto;font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}

/* 数据 */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)}
.fact{padding:clamp(22px,3.2vw,36px) 18px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact b{display:block;font-family:var(--serif);font-size:clamp(1.7rem,3.6vw,2.7rem);
  font-weight:400;line-height:1;font-variant-numeric:tabular-nums;color:var(--sand)}
.fact b em{font-style:normal;font-size:.4em;letter-spacing:.1em;color:var(--muted);margin-left:3px}
.fact span{display:block;margin-top:9px;font-size:9px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted-2)}

/* 评价 */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2.6vw,32px)}
.quote{border-top:1px solid var(--line);padding-top:18px}
.quote p{margin:0 0 12px;font-family:var(--serif);font-size:14.5px;line-height:1.8;color:#e8e2d4}
.quote span{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2)}

/* 预订表单 */
.form{display:grid;gap:13px;max-width:520px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:8.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted-2)}
.field input,.field select,.field textarea{background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:2px;padding:12px 14px;color:var(--ink);font:inherit;font-size:14px;
  transition:border-color .2s,background .2s}
.field textarea{min-height:90px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid transparent;
  outline-offset:2px;border-color:var(--sand);background:rgba(255,255,255,.1)}
.field select option{background:#0a2a35}
.two{display:grid;grid-template-columns:1fr 1fr;gap:13px}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
.tbl thead th{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--sand);
  font-weight:400;background:rgba(230,215,184,.05)}
.tbl tbody th{font-weight:400;color:#c4d2d3}
.tbl td{color:#e8e2d4}
.tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:3px}
.tblwrap .tbl{min-width:560px}
.tbl tbody tr:last-child th,.tbl tbody tr:last-child td{border-bottom:0}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:17px 30px 17px 2px;cursor:pointer;font-size:13.5px;list-style:none;
  position:relative;transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--muted-2);font-size:15px}
.faq details[open] summary::after{content:"–";color:var(--sand)}
.faq summary:hover{color:#fff}
.faq p{margin:0 0 17px;padding-right:30px;font-size:12.5px;line-height:1.85;color:var(--muted);max-width:70ch}

/* 内页首屏 */
.phero{padding-top:clamp(118px,16vh,176px);padding-bottom:clamp(22px,3.4vw,42px);
  background:linear-gradient(180deg,#0a3542,#061e27)}
.phero h1{margin:16px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(2.1rem,5.4vw,4rem);line-height:1.08}
.phero p{margin:18px 0 0;max-width:54ch;font-size:14px;line-height:1.9;color:#c4d2d3}

/* 页脚 */
.foot{border-top:1px solid var(--line);padding:clamp(38px,6vw,62px) var(--pad) 28px;
  background:#04181f}
.foot-in{max-width:var(--max);margin:0 auto;display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.foot h4{margin:0 0 11px;font-size:8.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted-2)}
.foot a{display:block;font-size:12.5px;color:#b3c2c4;margin-bottom:7px;transition:color .2s}
.foot a:hover{color:#fff}
.foot .note{margin-top:12px;font-size:12px;line-height:1.85;color:var(--muted-2);max-width:32ch}
.foot small{display:block;max-width:var(--max);margin:30px auto 0;font-size:10.5px;color:var(--muted-2)}

/* 入场 */
.rv{opacity:0;transform:translateY(22px);
  transition:opacity .95s cubic-bezier(.16,.84,.24,1),transform .95s cubic-bezier(.16,.84,.24,1)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}

:focus-visible{outline:2px solid var(--sand);outline-offset:3px}

@media (max-width:1024px){
  .booking{grid-template-columns:1fr 1fr;}
  .booking .go{grid-column:1 / -1}
  .villas{grid-template-columns:1fr 1fr}
  .exp{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr 1fr}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(1),.fact:nth-child(2){border-bottom:1px solid var(--line)}
  .quotes{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){ .head nav{display:none} }
@media (max-width:560px){
  .booking{grid-template-columns:1fr}
  .villas,.exp,.facts,.foot-in{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--line)}
  .two{grid-template-columns:1fr}
  .hero-copy{max-width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;scroll-behavior:auto !important}
  .rv{opacity:1;transform:none}
}

/* 布局工具：内页局部改列，不写内联样式 */
.g1c{grid-template-columns:1fr}
.g2c{grid-template-columns:1fr 1fr}
.g3c{grid-template-columns:repeat(3,1fr)}
.sep-r{border-right:1px solid var(--line)}
.sep-t{border-top:1px solid var(--line)}
/* 内页局部覆盖 */
.facts.boxed{border:1px solid var(--line);border-top:0}
.facts.boxed.mt18{margin-top:18px}
/* 布局工具 End */