:root{--wrap:1120px;--r:16px;--f:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
body.p-navy{--bg:#071427;--bg2:#0a1c36;--surface:rgba(255,255,255,.05);--line:rgba(140,180,255,.18);--text:#e8f0ff;--muted:#9fb3d1;--brand:#4b8dff;--accent:#39d3e6;--glow:rgba(75,141,255,.35)}
body.p-light{--bg:#f5f7fb;--bg2:#fff;--surface:#fff;--line:#e3e9f3;--text:#0c1c33;--muted:#5b6b83;--brand:#0b3d91;--accent:#c99a42;--glow:rgba(11,61,145,.18)}
body.p-dark{--bg:#08090c;--bg2:#0e1015;--surface:rgba(255,255,255,.045);--line:rgba(255,255,255,.13);--text:#f2f4f8;--muted:#9aa3b2;--brand:#7c6bff;--accent:#22d3ee;--glow:rgba(124,107,255,.32)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.22;margin:0 0 .5em;letter-spacing:.01em}
h1{font-size:clamp(30px,4.6vw,54px);font-weight:800}
h2{font-size:clamp(24px,3vw,36px);font-weight:800}
h3{font-size:19px}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.small{font-size:13.5px}
.tiny{font-size:12.5px;color:var(--muted);margin:.3em 0}
.hant,.hans,.en{display:none}
body.lang-hant .hant,body.lang-hans .hans,body.lang-en .en{display:contents}

/* nav */
.nav{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.navin{display:flex;align-items:center;gap:18px;height:70px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.mark{width:34px;height:34px;flex:0 0 auto}
.brand .bt{display:flex;flex-direction:column;min-width:0}
.brand b{font-size:16.5px;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand i{font-style:normal;font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logochip{display:inline-flex;align-items:center;background:#fff;border-radius:10px;padding:4px 7px;flex:0 0 auto}
.logochip img{display:block;height:30px;width:auto}
.logochip.big{padding:10px 14px;border-radius:14px}
.logochip.big img{height:104px}
.links{display:flex;gap:4px;margin-left:auto}
.nl{padding:8px 13px;border-radius:9px;font-size:14.5px;color:var(--muted)}
.nl:hover{color:var(--text);background:var(--surface)}
.nl.on{color:var(--text);background:var(--surface)}
.tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.tb{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:9px;height:34px;min-width:38px;font:inherit;font-size:13.5px;cursor:pointer;padding:0 10px}
.pals{display:flex;gap:6px;align-items:center}
.pd{width:16px;height:16px;border-radius:50%;border:1px solid var(--line);cursor:pointer;padding:0}
.pd.p-navy{background:#0b2a52}.pd.p-light{background:#f0f3f9}.pd.p-dark{background:#111319}
.pd.on{outline:2px solid var(--accent);outline-offset:2px}
.menu{display:none}
@media(max-width:900px){
  .links{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--line);padding:10px 22px 16px;margin:0}
  .links.open{display:flex}
  .nl{padding:12px 0}
  .menu{display:inline-block}
}

/* hero */
.hero{position:relative;overflow:hidden;padding:78px 0 64px;background:
  radial-gradient(900px 460px at 78% -10%,var(--glow),transparent 60%),
  radial-gradient(700px 400px at 8% 8%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 62%),
  linear-gradient(180deg,var(--bg2),var(--bg))}
.hero .kick{font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:14px}
.hero .sub{font-size:clamp(15px,1.5vw,18.5px);color:var(--muted);max-width:64ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 34px}
.btn{display:inline-block;padding:12px 24px;border-radius:11px;background:linear-gradient(120deg,var(--brand),var(--accent));color:#fff;font-weight:700;font-size:15px;border:0;cursor:pointer}
body.p-light .btn{color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.herocard{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;max-width:640px}
.herocard>div{background:var(--bg2);padding:16px 18px}
.herocard b{display:block;font-size:17px}
.herocard span{font-size:12.5px;color:var(--muted)}
.heroin{display:grid;grid-template-columns:1.12fr .88fr;gap:34px;align-items:center}
.hcopy{min-width:0}
.hart{display:flex;justify-content:center}
.heroart{width:min(400px,100%);height:auto}
.herocard{grid-column:1/-1;margin-top:30px}
@media(max-width:900px){.heroin{grid-template-columns:1fr;gap:18px}.hart{order:-1}.heroart{width:min(290px,78%)}}

/* sections */
.sec{padding:70px 0}
.sec.alt{background:var(--bg2)}
.head{padding:60px 0 26px;background:linear-gradient(180deg,var(--bg2),var(--bg));border-bottom:1px solid var(--line)}
.lead{color:var(--muted);max-width:70ch}
.two{display:grid;grid-template-columns:1.15fr 1fr;gap:46px;align-items:start}
@media(max-width:900px){.two{grid-template-columns:1fr;gap:28px}}
.facts{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:22px 24px}
.facts h3{color:var(--accent);font-size:14px;letter-spacing:.16em;text-transform:uppercase}
.facts dl{margin:0}
.facts dl>div{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-top:1px solid var(--line)}
.facts dt{color:var(--muted);font-size:13.5px;flex:0 0 auto}
.facts dd{margin:0;font-size:14px;text-align:right}
@media(max-width:600px){.facts dl>div{flex-direction:column;gap:2px}.facts dd{text-align:left}}

.grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid6.wide{grid-template-columns:repeat(3,1fr)}
@media(max-width:820px){.grid6,.grid6.wide{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid6,.grid6.wide{grid-template-columns:1fr}}
.card{display:block;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:22px;transition:transform .25s,border-color .25s}
.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card b{display:block;font-size:17px;margin-top:10px}
.card .dot{width:12px;height:12px;border-radius:4px;display:block;background:linear-gradient(120deg,var(--brand),var(--accent))}
.card .num{font-size:12px;color:var(--accent);letter-spacing:.18em;font-weight:700}
.card .ci{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:var(--bg2);border:1px solid var(--line);color:var(--accent);margin-bottom:12px}
.card .ic{width:24px;height:24px}
.card .cd{display:block;color:var(--muted);font-size:13.5px;line-height:1.6;margin-top:6px}

.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.strip>div{background:var(--bg2);padding:18px 20px}
.strip span{display:block;font-size:12.5px;color:var(--muted)}
.strip b{display:block;font-size:15.5px;margin-top:6px;word-break:break-all}
@media(max-width:760px){.strip{grid-template-columns:repeat(2,1fr)}}

.gv{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.gv>div{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:20px 22px}
.gv span{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.gv p{margin:8px 0 0;font-size:15px}
@media(max-width:760px){.gv{grid-template-columns:1fr}}

.netbox{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:16px;margin:6px 0 18px}
.netart{width:100%;height:auto;max-width:620px;display:block;margin:0 auto}
.atl{opacity:.75}
.mapbox{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:18px;margin-top:18px;text-align:center}
.locart{width:100%;height:auto;max-width:620px;display:block;margin:0 auto 16px}

.own{margin-top:26px}
.bar{height:14px;border-radius:8px;background:linear-gradient(90deg,var(--brand),var(--accent));width:var(--w,100%);max-width:100%;margin-bottom:14px}
.legend{display:flex;gap:26px;flex-wrap:wrap;font-size:14px}
.legend .sw{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:7px}
.sw.s1{background:var(--brand)}.sw.s2{background:var(--accent)}
.gcards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:26px}
@media(max-width:760px){.gcards{grid-template-columns:1fr}}
.gcard{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:24px;display:flex;flex-direction:column;gap:6px}
.gcard .pct{font-size:30px;font-weight:800;color:var(--accent)}
.gcard b{font-size:15px;line-height:1.4}

.cinfo{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.cinfo{grid-template-columns:1fr}}
.cinfo>div{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:20px 22px}
.cinfo span{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.cinfo p{margin:8px 0 0;font-size:15px}
.ph{color:var(--muted)}
.cinfo.big>div{padding:26px}

/* doc */
.doc{max-width:78ch}
.doc p{margin:0 0 1.1em}

/* footer */
.ft{border-top:1px solid var(--line);background:var(--bg2);padding:44px 0 26px;margin-top:30px}
.ftin{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.brand.small .mark{width:30px;height:30px}
.legal{font-size:13.5px;color:var(--muted);margin:10px 0 4px}
.fc{display:flex;gap:22px;flex-wrap:wrap;font-size:14px}
.fc a{color:var(--muted)}.fc a:hover{color:var(--text)}
.fbot{margin-top:26px;border-top:1px solid var(--line);padding-top:14px}

/* review notes */
.notes{display:none;margin:0 auto;max-width:var(--wrap);padding:0 22px 40px}
body.with-notes .notes{display:block}
.notes h3{color:var(--accent);font-size:14px;letter-spacing:.16em;text-transform:uppercase}
.notes ul{border:1px dashed var(--accent);border-radius:var(--r);padding:18px 22px 18px 38px;background:var(--surface);font-size:14px}
.notes li{margin:8px 0}
.notes ul li:not(.hant):not(.hans):not(.en){display:list-item}
body.lang-hant .notes li.hant,body.lang-hans .notes li.hans,body.lang-en .notes li.en{display:list-item}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}