/* ---------- THEME COLOURS (dark = default, light = [data-theme="light"]) ---------- */
:root{--bg:#07070a;--cu:#d08a5b;--cu2:#f0b48a;--teal:#3fb8a8;--tx:#e9e6e3;--tx2:#cfcac5;--hi:#fff;--mu:#9a958f;--line:rgba(255,255,255,.09);
--glowA:#2a1a10;--glowB:#0c2422;--hexOp:.07;--nav:#07070acc;--nav0:#07070a00;--soft:#ffffff08;--soft2:#ffffff06;--btnS:#1a1b22;
--glassA:#ffffff0d;--glassB:#ffffff03;--field:#0008;--box:linear-gradient(160deg,#2a1d16ee,#0e1817ee);--overlay:#000a;--gTop:#fff;--gBot:#8d8a88;--lead:#bdb8b2;--accent:var(--cu2);--panel:#0b0b10f2;color-scheme:dark}
[data-theme="light"]{--bg:#f6f2ed;--tx:#1b1714;--tx2:#3d3631;--hi:#000;--mu:#6b625b;--line:rgba(30,20,10,.12);
--glowA:#f6d9c2;--glowB:#cdeee8;--hexOp:.05;--nav:#f6f2edd9;--nav0:#f6f2ed00;--soft:#0000000a;--soft2:#00000005;--btnS:#fff;
--glassA:#ffffffcc;--glassB:#ffffff80;--field:#fff;--box:linear-gradient(160deg,#fff7f0f5,#eef8f6f5);--overlay:#1b17146b;--gTop:#1b1714;--gBot:#7a6a5e;--lead:#4a423c;--accent:#b0602f;--panel:#f6f2edf5;color-scheme:light}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:auto}
body{background:radial-gradient(1200px 700px at 75% 0%,var(--glowA) 0%,transparent 60%),radial-gradient(900px 600px at 80% 70%,var(--glowB) 0%,transparent 60%),var(--bg);color:var(--tx);font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;overflow-x:hidden;transition:background-color .4s,color .4s}
.hex{position:fixed;inset:0;pointer-events:none;opacity:var(--hexOp);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97'%3E%3Cpath d='M28 0l28 16v32L28 64 0 48V16zM28 64l28 16v33M28 64L0 80v33' fill='none' stroke='%23888' stroke-width='1.2'/%3E%3C/svg%3E");mask:linear-gradient(110deg,#000 0%,transparent 35%,transparent 60%,#000 100%)}
[data-theme="light"] .hex{filter:invert(1)}
a{color:inherit;text-decoration:none}
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 6vw;backdrop-filter:blur(12px);background:linear-gradient(var(--nav),var(--nav0))}
.logo{font-weight:700;letter-spacing:.04em;font-size:17px;white-space:nowrap}.logo span{color:var(--accent)}.mark{color:var(--cu)}
.links{display:flex;align-items:center;gap:32px;font-size:14px;color:var(--tx2)}.links a:hover{color:var(--hi)}
.navtools{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:999px;display:grid;place-items:center;border:1px solid var(--line);background:var(--soft);color:var(--tx);cursor:pointer;transition:.3s}
.icon-btn:hover{border-color:var(--cu);box-shadow:0 0 18px -6px var(--cu)}
.icon-btn .i-sun{display:none}[data-theme="light"] .icon-btn .i-sun{display:block}[data-theme="light"] .icon-btn .i-moon{display:none}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--soft)}
.lang button{border:0;background:none;color:var(--mu);font:600 12px Inter,"PingFang SC","Microsoft YaHei",sans-serif;padding:7px 12px;border-radius:999px;cursor:pointer;transition:.25s}
.lang button.on{color:var(--tx);background:linear-gradient(135deg,#d08a5b40,#3fb8a830);box-shadow:0 0 0 1px #d08a5b88 inset}
.nav-right{display:flex;align-items:center;gap:12px}
.burger{display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--soft);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:6px}
.burger span{display:block;width:16px;height:1.6px;background:var(--tx);transition:.3s}
.burger.open span:first-child{transform:translateY(3.8px) rotate(45deg)}.burger.open span:last-child{transform:translateY(-3.8px) rotate(-45deg)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:999px;border:1px solid var(--line);font-size:14px;font-weight:500;background:var(--soft);cursor:pointer;color:var(--tx);transition:.3s;white-space:nowrap}
.btn:hover{border-color:var(--cu2)}.btn.small{padding:9px 18px;background:var(--btnS)}
.btn.glow{border-color:var(--cu);box-shadow:0 -8px 22px -8px var(--cu2) inset,0 0 26px -6px #d08a5b88}
.btn.glow:hover{box-shadow:0 -10px 26px -6px var(--cu2) inset,0 0 40px -4px #d08a5bbb}
.grad{background:linear-gradient(180deg,var(--gTop) 10%,var(--gBot) 110%);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.03em;font-weight:500}
html[lang^="zh"] .grad{letter-spacing:0}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:110px 6vw 60px}
#crystal{position:absolute;right:0;top:0;width:60%;height:100%}
.hero-inner{position:relative;max-width:620px;z-index:2}
h1{font-size:clamp(42px,6vw,80px);line-height:1.08;margin-bottom:22px}
.lead{color:var(--lead);font-size:18px;line-height:1.6;max-width:520px}
.eyebrow{margin-top:30px;font-size:12px;letter-spacing:.12em;color:var(--mu)}
.chips{display:flex;flex-wrap:wrap;gap:18px;margin-top:12px;color:var(--tx2);font-size:15px}
.cta{display:flex;align-items:center;gap:28px;margin-top:38px}.link{font-size:14px;font-weight:500}
section{padding:100px 6vw}h2{font-size:clamp(34px,4.4vw,58px);margin-bottom:12px}.sub{color:var(--mu);margin-bottom:34px}
.tools{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;margin-bottom:30px}
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:var(--soft2);color:var(--tx2);font:500 13px Inter,"PingFang SC","Microsoft YaHei",sans-serif;cursor:pointer}
.tab.on{border-color:var(--cu);color:var(--hi);box-shadow:0 0 18px -6px var(--cu)}
#search{background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:11px 18px;color:var(--tx);font:14px Inter,"PingFang SC","Microsoft YaHei",sans-serif;min-width:240px;outline:none}#search:focus{border-color:var(--teal)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.glass{background:linear-gradient(160deg,var(--glassA),var(--glassB));border:1px solid var(--line);border-radius:20px;backdrop-filter:blur(16px)}
[data-theme="light"] .glass{box-shadow:0 10px 30px -18px #5a3a2050}
.card{padding:22px;display:flex;flex-direction:column;gap:10px;transition:border-color .35s,box-shadow .35s,translate .35s}
.card:hover{translate:0 -4px;border-color:#d08a5b66;box-shadow:0 20px 40px -20px #d08a5b55}
.ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:24px;background:linear-gradient(135deg,#d08a5b33,#3fb8a822);border:1px solid var(--line)}.ic:has(img){background:none;border:0;box-shadow:0 8px 20px -12px #0008}
.ic img{width:100%;height:100%;object-fit:cover;border-radius:14px}
.cat{font-size:11px;letter-spacing:.1em;color:var(--teal);text-transform:uppercase;font-weight:600}
[data-theme="light"] .cat{color:#1e8577}
.card h3{font-size:17px;font-weight:600}.card p{color:var(--mu);font-size:14px;line-height:1.5;flex:1}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px}
.price{font-size:20px;font-weight:600}.price small{display:block;font-size:12px;color:var(--mu);font-weight:400}
.empty{color:var(--mu);text-align:center;padding:40px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.step{padding:26px}.step b{color:var(--accent);font-size:22px}.step h3{margin:12px 0 6px;font-weight:600}.step p{color:var(--mu);font-size:14px}
.faq{display:grid;gap:12px;max-width:820px;margin-top:30px}.faq details{padding:20px 24px}.faq summary{cursor:pointer;font-weight:500}.faq p{color:var(--mu);margin-top:10px;line-height:1.6}
footer{padding:60px 6vw;border-top:1px solid var(--line);color:var(--mu);display:grid;gap:8px}.small{font-size:12px}
.modal{position:fixed;inset:0;z-index:100;background:var(--overlay);backdrop-filter:blur(6px);display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.box{width:100%;max-width:440px;max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow-y:auto;overscroll-behavior:contain;padding:30px;position:relative;display:grid;gap:14px;background:var(--box)}
.x{position:absolute;right:16px;top:12px;background:none;border:0;color:var(--tx);font-size:28px;cursor:pointer}
.m-icon{font-size:34px;line-height:0}.m-icon img{width:56px;height:56px;border-radius:15px;box-shadow:0 10px 24px -12px #0009}.muted{color:var(--mu);font-size:14px;line-height:1.5}
label{display:grid;gap:8px;font-size:13px;color:var(--mu)}label[hidden]{display:none}
select,.stepper{background:var(--field);border:1px solid var(--line);border-radius:14px;color:var(--tx);font:15px Inter,"PingFang SC","Microsoft YaHei",sans-serif}
select{padding:12px}select option{background:var(--bg);color:var(--tx)}
.stepper{display:flex}.stepper button{width:48px;background:none;border:0;color:var(--tx);font-size:20px;cursor:pointer}
.stepper input{flex:1;background:none;border:0;color:var(--tx);text-align:center;font:600 16px Inter;padding:12px 0;width:40px}
.total{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-top:1px solid var(--line)}.total strong{font-size:26px;color:var(--accent)}
.full{width:100%}
@media(max-width:1100px){.links{gap:22px}}
@media(max-width:900px){
  .burger{display:flex}
  .links{display:none;position:absolute;top:100%;left:4vw;right:4vw;flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 18px;border:1px solid var(--line);border-radius:20px;background:var(--panel);backdrop-filter:blur(18px);box-shadow:0 24px 50px -20px #0008}
  .links.open{display:flex}
  .links a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .navtools{padding-top:16px;justify-content:space-between}
  .nav{background:var(--nav)}
  #crystal{width:100%;height:48vh;top:60px}.hero{align-items:flex-end;padding-top:50vh}.steps{grid-template-columns:1fr 1fr}#search{width:100%}}
@media(max-width:520px){.steps{grid-template-columns:1fr}section{padding:70px 5vw}.lead{font-size:16px}.grid{grid-template-columns:1fr}.nav{padding:14px 5vw}.btn.small{padding:9px 14px}}
.card{animation:rise .5s ease-out both}@keyframes rise{from{opacity:.0;translate:0 16px}}

/* ---- order form fields ---- */
.fields{display:grid;gap:12px}.fields:empty{display:none}
.fields-title{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--teal);font-weight:600;margin-top:2px}
[data-theme="light"] .fields-title{color:#1e8577}
.field{display:grid;gap:6px}
.flabel{font-size:13px;color:var(--tx2)}.req{color:var(--accent);font-weight:700}.opt{font-style:normal;color:var(--mu);font-size:12px}
.field input,.field textarea,.field select{width:100%;background:var(--field);border:1px solid var(--line);border-radius:12px;color:var(--tx);font:15px Inter,"PingFang SC","Microsoft YaHei",sans-serif;padding:11px 13px;outline:none;transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:46px}
.field input::placeholder,.field textarea::placeholder{color:var(--mu);opacity:.8}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--teal);box-shadow:0 0 0 3px #3fb8a822}
.field .bad{border-color:#e5484d;box-shadow:0 0 0 3px #e5484d22}
.ferr{color:#ff6b6b;font-size:12px;min-height:0}.ferr:empty{display:none}
[data-theme="light"] .ferr{color:#c62828}
.form-msg{color:var(--mu);font-size:13px;text-align:center}.form-msg.err{color:#ff6b6b}[data-theme="light"] .form-msg.err{color:#c62828}.form-msg[hidden]{display:none}
.btn.is-disabled{opacity:.42;filter:saturate(.4);box-shadow:none;cursor:not-allowed}
.btn.is-disabled:hover{border-color:var(--line)}
@media(max-width:520px){.box{padding:24px 20px}.logo{font-size:15px}}
@media(max-width:380px){.logo{font-size:14px;letter-spacing:.02em}.nav-right .btn.small{padding:8px 12px;font-size:13px}}