/* K1 Visual Solutions — demo build */
:root{
  --paper:#FAF8F5; --ink:#16130F; --ink2:#3a3431; --muted:#6f675e;
  --line:#E8E2D9; --card:#ffffff; --accent:#3B3FA8; --accent-ink:#2E3284;
  --dark:#14110E; --dark2:#1d1915; --gold:#C8501E;
  --ff-display:"Playfair Display",Georgia,"Times New Roman",serif;
  --ff-body:"Inter","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--ff-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1280px;margin:0 auto;padding:0 32px}
.serif{font-family:var(--ff-display)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,245,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;gap:40px;height:78px}
.brand{display:flex;align-items:baseline;gap:6px;line-height:48px}
.brand .k1{font-family:'Montserrat',var(--ff-body);font-weight:900;font-size:38px;color:var(--accent);letter-spacing:-1.5px}
.brand .rest{font-family:'Montserrat',var(--ff-body);font-weight:500;font-size:18px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink)}
.nav{display:flex;gap:30px;align-items:center;margin-left:auto}
.nav>a{font-size:15px;font-weight:500;color:var(--ink2);padding:8px 0;border-bottom:2px solid transparent}
.nav>a:hover,.nav>a.active{color:var(--ink);border-color:var(--accent)}
.nav .dd{position:relative}
.nav .dd>a::after{content:" ▾";font-size:11px;color:var(--muted)}
.nav .dd-menu{position:absolute;top:100%;left:-16px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 40px rgba(20,17,14,.12);padding:10px;min-width:280px;display:none}
.nav .dd:hover .dd-menu{display:block}
.dd-menu a{display:block;padding:10px 14px;border-radius:8px;font-size:14.5px;color:var(--ink2)}
.dd-menu a:hover{background:var(--paper);color:var(--ink)}
.dd-menu a small{display:block;color:var(--muted);font-size:12px}
/* min-height 48px 確保觸控友善 (iOS HIG min 44px) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;font-weight:600;font-size:15px;padding:13px 28px;min-height:48px;border-radius:99px;border:1.5px solid var(--accent);transition:.2s;cursor:pointer}
.btn:hover{background:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--ink);border-color:#c9c2b8}
.btn.ghost:hover{border-color:var(--ink)}
.btn.light{background:#fff;color:var(--ink);border-color:#fff}
.header-cta{margin-left:8px}

/* ---------- mobile nav ---------- */
.nav-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;padding:0;background:transparent;border:0;border-radius:10px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--ink);transition:.2s}
.nav-toggle:hover span{background:var(--accent)}
.selpage .nav-toggle span{background:#F4F1EC}
.mobile-menu{position:fixed;inset:0;z-index:200;background:var(--dark);color:#F4F1EC;display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .28s ease,visibility 0s linear .28s}
.mobile-menu.open{opacity:1;visibility:visible;transition:opacity .28s ease}
.mobile-menu .mm-bar{flex:none;display:flex;align-items:center;justify-content:space-between;height:78px;padding:0 24px;border-bottom:1px solid rgba(255,255,255,.1)}
.mobile-menu .brand .k1{color:#9D97F1}
.mobile-menu .brand .rest{color:#F4F1EC}
.mm-close{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:transparent;border:1px solid rgba(255,255,255,.25);border-radius:50%;color:#F4F1EC;cursor:pointer;transition:.2s}
.mm-close:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.mm-close svg{width:18px;height:18px;display:block}
.mm-links{flex:1;overflow-y:auto;display:flex;flex-direction:column;padding:18px 24px 30px;transform:translateY(14px);transition:transform .32s cubic-bezier(.22,1,.36,1)}
.mobile-menu.open .mm-links{transform:none}
.mm-links>a{font-family:var(--ff-display);font-size:27px;font-weight:600;color:#F4F1EC;padding:13px 2px;border-bottom:1px solid rgba(255,255,255,.08)}
.mm-links>a:hover,.mm-links>a.active{color:#9D97F1}
.mm-sub{display:flex;flex-direction:column;padding:6px 0 10px;border-bottom:1px solid rgba(255,255,255,.08)}
.mm-sub a{font-size:15px;color:#b6afa6;padding:8px 2px 8px 14px}
.mm-sub a:hover,.mm-sub a.active{color:#fff}
.mm-cta{margin-top:24px;justify-content:center}
body.menu-open{overflow:hidden}

/* ---------- hero ---------- */
.hero{position:relative;min-height:86vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero video,.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,8,6,.78) 0%,rgba(10,8,6,.45) 48%,rgba(10,8,6,.18) 100%)}
.hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:60px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:#cfd2ff;margin-bottom:18px}
.hero h1{font-family:var(--ff-display);font-size:clamp(38px,5.2vw,68px);line-height:1.08;max-width:780px;font-weight:700}
.hero p.lead{margin:22px 0 30px;font-size:18px;max-width:560px;color:rgba(255,255,255,.85)}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero .chips{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero .chips span{font-size:14px;color:rgba(255,255,255,.85)}
.hero .chips b{color:#fff}
/* stat badges — 電腦端 hover 微浮 */
.hero .stat-badges{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.stat-badge{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px);border-radius:14px;padding:10px 20px;transition:.25s}
.stat-badge:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.stat-badge b{display:block;font-size:22px;font-family:var(--ff-display)}
.stat-badge span{font-size:12.5px;color:rgba(255,255,255,.75)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.sec-head{margin-bottom:48px;max-width:760px}
.kicker{display:flex;align-items:center;gap:14px;font-size:13px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.kicker .num{color:var(--gold);font-family:var(--ff-display)}
.kicker::after{content:"";width:54px;height:1px;background:#cfc8bd}
h2.title{font-family:var(--ff-display);font-size:clamp(30px,3.6vw,44px);line-height:1.15;font-weight:700}
/* 電腦端 sec-head p 17px 提升可讀性 */
.sec-head p{margin-top:14px;color:var(--muted);font-size:17px}
.sec-head .row{display:flex;justify-content:space-between;align-items:end;gap:30px;flex-wrap:wrap}
/* link-arrow inline-block 讓 hover translateX 生效 */
.link-arrow{font-weight:600;color:var(--accent);white-space:nowrap;display:inline-block;transition:transform .2s,color .2s}
.link-arrow:hover{color:var(--accent-ink);transform:translateX(3px)}

/* dark section */
.section.dark{background:var(--dark);color:#f4efe8}
.section.dark .kicker{color:#9b948b}
.section.dark .sec-head p{color:#b3aca2}
.section.dark .card-label{color:#9b948b}

/* ---------- cards ---------- */
.grid{display:grid;gap:26px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:.25s;position:relative}
/* 電腦端 hover 加深，視覺更有層次 */
.pcard:hover{transform:translateY(-6px);box-shadow:0 28px 60px rgba(20,17,14,.13)}
.pcard .media{position:relative;aspect-ratio:4/3;overflow:hidden}
.pcard .media img,.pcard .media video{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.pcard:hover .media img{transform:scale(1.04)}
.pcard .tag{position:absolute;top:14px;left:14px;background:rgba(20,17,14,.78);color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 12px;border-radius:99px;backdrop-filter:blur(4px)}
.pcard .body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.pcard h3{font-family:var(--ff-display);font-size:22px;font-weight:700}
.pcard p{font-size:14.5px;color:var(--muted)}
.pcard .meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:16px}
.card-label{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pcard .meta b{font-size:15px}
/* vcard — hover 提示 amber */
.vcard{position:relative;border-radius:16px;overflow:hidden;background:#000;cursor:pointer}
.vcard video{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.96}
.vcard.vert video{aspect-ratio:9/16}
.vcard .cap{position:absolute;left:0;right:0;bottom:0;padding:40px 20px 16px;background:linear-gradient(transparent,rgba(0,0,0,.78));color:#fff}
.vcard .cap b{display:block;font-family:var(--ff-display);font-size:18px;transition:color .2s}
.vcard:hover .cap b{color:#ffce9e}
.vcard .cap span{font-size:12.5px;color:rgba(255,255,255,.75)}
.vcard .play{position:absolute;top:14px;right:14px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;transition:transform .2s}
.vcard:hover .play{transform:scale(1.1)}

/* numbers strip — 電腦端更有呼吸感 */
.numstrip{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.numstrip .cell{flex:1 1 160px;text-align:center;padding:40px 16px;border-right:1px solid var(--line)}
.numstrip .cell:last-child{border-right:none}
.numstrip b{display:block;font-family:var(--ff-display);font-size:clamp(28px,3vw,42px);color:var(--ink)}
.numstrip span{font-size:13px;color:var(--muted);letter-spacing:.06em}

/* features */
.feat{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.feat .media{aspect-ratio:16/10;overflow:hidden}
.feat .media img,.feat .media video{width:100%;height:100%;object-fit:cover}
.feat .body{padding:24px 26px 28px}
.feat h3{font-family:var(--ff-display);font-size:20px;margin-bottom:8px}
.feat p{font-size:14.5px;color:var(--muted)}
.feat .icon{font-size:26px;margin-bottom:10px}

/* spec tabs */
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.tabs button{font-family:var(--ff-body);font-size:15px;font-weight:600;padding:11px 24px;border-radius:99px;border:1.5px solid #cfc8bd;background:transparent;color:var(--ink2);cursor:pointer;transition:.2s}
.tabs button.active{background:var(--ink);border-color:var(--ink);color:#fff}
.tabpane{display:none}
.tabpane.active{display:block}
.spec-flex{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:start}
.spec-flex .photo{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec-table th{background:var(--ink);color:#fff;text-align:left;padding:12px 18px;font-size:14px}
.spec-table td{padding:11px 18px;border-bottom:1px solid var(--line);font-size:14.5px}
.spec-table tr td:first-child{color:var(--muted);width:46%}
.spec-table tr:last-child td{border-bottom:none}
.shared-specs{margin-top:40px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 34px}
.shared-specs h3{font-family:var(--ff-display);font-size:20px;margin-bottom:18px}
.shared-specs .grid-mini{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px 30px}
.shared-specs .row{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.shared-specs .row span{color:var(--muted)}
.shared-specs .row b{text-align:right;font-weight:600}

/* pitch slider */
.pitchsel{background:var(--dark);color:#f4efe8;border-radius:20px;padding:40px 44px;margin-top:44px}
.pitchsel h3{font-family:var(--ff-display);font-size:24px;margin-bottom:6px}
.pitchsel p{color:#b3aca2;font-size:14.5px;margin-bottom:24px}
.pitchsel input[type=range]{width:100%;accent-color:var(--gold)}
.pitchsel .scale{display:flex;justify-content:space-between;font-size:12px;color:#8d867d;margin-top:6px}
.pitchsel .out{margin-top:22px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.pitchsel .out .dist{font-family:var(--ff-display);font-size:34px}
.pitchsel .out .rec{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:12px 22px;border-radius:12px;font-size:15px}
.pitchsel .out .rec b{color:#ffce9e}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery a{position:relative;border-radius:14px;overflow:hidden;display:block;aspect-ratio:4/3}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gallery a:hover img{transform:scale(1.05)}
.gallery .glabel{position:absolute;left:12px;bottom:12px;background:rgba(20,17,14,.72);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:99px;backdrop-filter:blur(4px)}
.lightbox{position:fixed;inset:0;background:rgba(10,8,6,.92);display:none;align-items:center;justify-content:center;z-index:99;padding:40px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:10px;object-fit:contain}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.step .n{font-family:var(--ff-display);font-size:30px;color:var(--gold)}
.step h4{margin:10px 0 6px;font-size:16.5px}
.step p{font-size:14px;color:var(--muted)}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 26px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::after{content:"+";font-size:22px;color:var(--muted)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:12px;color:var(--muted);font-size:15px}

/* CTA band */
.ctaband{background:var(--dark);color:#f4efe8;border-radius:24px;padding:64px 56px;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden}
.ctaband h2{font-family:var(--ff-display);font-size:clamp(26px,3vw,38px);max-width:520px}
.ctaband p{color:#b3aca2;margin-top:10px;max-width:480px}
.ctaband .actions{display:flex;gap:14px;flex-wrap:wrap}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px;background:#F4F0EA}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h5{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.site-footer ul{list-style:none}
/* 去掉 white-space:nowrap 防止長文字手機溢出 */
.site-footer li{margin-bottom:9px}
.site-footer a{font-size:14.5px;color:var(--ink2)}
.site-footer a:hover{color:var(--accent)}
.site-footer .blurb{font-size:14px;color:var(--muted);margin-top:14px;max-width:300px}
.site-footer .bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);margin-top:48px;padding:22px 0;flex-wrap:wrap}
.site-footer .socials{display:flex;gap:10px}
.site-footer .socials a{position:relative;width:36px;height:36px;border:1.5px solid #c9c2b8;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ink2);transition:.2s}
.site-footer .socials a svg{width:16px;height:16px;display:block;fill:currentColor}
.site-footer .socials a:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.site-footer .socials a[data-tip]::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 9px);left:50%;transform:translate(-50%,3px);background:var(--dark);color:#fff;font-size:11px;font-weight:600;line-height:1;white-space:nowrap;padding:6px 10px;border-radius:6px;opacity:0;pointer-events:none;transition:.18s}
.site-footer .socials a[data-tip]:hover::after{opacity:1;transform:translate(-50%,0)}
.site-footer .copy{font-size:13px;color:var(--muted)}

/* page hero (subpages) */
.page-hero{position:relative;min-height:46vh;display:flex;align-items:end;color:#fff;overflow:hidden;padding-bottom:48px}
.page-hero img,.page-hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,8,6,.25),rgba(10,8,6,.72))}
.page-hero .container{position:relative;z-index:2}
.crumbs{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:14px}
.page-hero h1{font-family:var(--ff-display);font-size:clamp(34px,4.4vw,56px);font-weight:700}
.page-hero p{margin-top:12px;max-width:620px;color:rgba(255,255,255,.85)}

/* anchor subnav */
.subnav{position:sticky;top:78px;z-index:40;background:rgba(250,248,245,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.subnav .container{display:flex;gap:26px;align-items:center;height:54px;overflow-x:auto}
.subnav a{font-size:13.5px;font-weight:600;color:var(--muted);white-space:nowrap}
.subnav a:hover{color:var(--ink)}
.subnav .quote{margin-left:auto;color:var(--accent)}

/* compare table */
.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14.5px}
.cmp th{background:var(--ink);color:#fff;padding:13px 16px;text-align:left}
.cmp td{padding:12px 16px;border:1px solid var(--line)}
.cmp tr td:first-child{color:var(--muted);font-weight:500}
.cmp .hl{background:#FBF4EE}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
.reveal.in{opacity:1;transform:none}

/* certs */
.certs{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.cert{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}
.cert b{font-family:var(--ff-display);font-size:22px;display:block}
.cert span{font-size:13px;color:var(--muted)}
.cert a{display:inline-block;margin-top:10px;font-size:13px;color:var(--accent);font-weight:600}

/* ---------- product selector (/selector) ---------- */
.dd-menu a.find{color:var(--accent-ink);font-weight:700}
.dd-menu a.find small{color:var(--muted);font-weight:400}

body.selpage{background:#0B0A09;color:#F4F1EC}
.selpage .site-header{background:rgba(11,10,9,.92);border-bottom:1px solid rgba(255,255,255,.08)}
.selpage .brand .k1{color:#9D97F1}
.selpage .brand .rest{color:#F4F1EC}
.selpage .nav>a{color:#b6afa6}
.selpage .nav>a:hover,.selpage .nav>a.active{color:#fff;border-color:#4F46B5}
.selpage .dd>a::after{color:#7d766d}
.selpage .site-footer{border-top:none}

.btn.sel{background:#4F46B5;border-color:#4F46B5;color:#fff}
.btn.sel:hover{background:#5B51D6;border-color:#5B51D6}
.btn.dark-ghost{background:transparent;color:#F4F1EC;border-color:rgba(255,255,255,.28)}
.btn.dark-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}

.selx-head{padding:72px 0 6px}
.selx-head .crumbs a:hover{color:#fff}
.selx-head h1{font-size:clamp(36px,4.6vw,58px);line-height:1.08;font-weight:700;max-width:760px}
.selx-head .lead{margin-top:16px;max-width:640px;color:#A9A29A;font-size:17px}

.selx-progress{padding:34px 0 6px}
.selx-progress .meta{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:10px}
.selx-progress .meta span{font-size:12.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#A9A29A}
.selx-progress .meta a{font-size:13.5px;font-weight:600;color:#9D97F1}
.selx-progress .meta a:hover{color:#fff}
.selx-progress .track{height:4px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.selx-progress .fill{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#4F46B5,#8B84E8);transition:width .5s cubic-bezier(.22,1,.36,1)}

.selx-stage{padding:38px 0 96px}
.selx-panel h2{font-size:clamp(26px,3.2vw,38px);font-weight:700}
.selx-panel .sub{margin:10px 0 30px;color:#A9A29A;font-size:15.5px;max-width:560px}

.selx-grid{display:grid;gap:18px}
.selx-grid.n3{grid-template-columns:repeat(3,1fr)}
.selx-grid.n4{grid-template-columns:repeat(4,1fr)}
.selx-card{display:flex;flex-direction:column;text-align:left;background:#15120F;border:1px solid rgba(255,255,255,.09);border-radius:18px;overflow:hidden;cursor:pointer;padding:0;color:inherit;font:inherit;transition:transform .25s,border-color .25s,box-shadow .25s}
.selx-card:hover{transform:translateY(-4px);border-color:rgba(157,151,241,.55);box-shadow:0 18px 44px rgba(0,0,0,.5),0 0 0 1px rgba(79,70,181,.25)}
.selx-card .media{display:block;aspect-ratio:16/10;overflow:hidden}
.selx-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.selx-card:hover .media img{transform:scale(1.05)}
.selx-card .body{display:flex;flex-direction:column;gap:8px;padding:20px 22px 24px}
.selx-card .t{font-size:20px;font-weight:700}
.selx-card .d{font-size:13.5px;line-height:1.6;color:#A9A29A}
.selx-card.txt{padding-top:30px}
.selx-card.txt .big{display:block;padding:0 22px;font-size:clamp(36px,4vw,48px);font-weight:700;color:#fff}
.selx-card.selected{border-color:#8B84E8;box-shadow:0 0 0 3px rgba(79,70,181,.3)}
.selx-card{position:relative}
.selx-card.selected::after{content:"✓";position:absolute;top:12px;right:12px;width:28px;height:28px;border-radius:50%;background:#4F46B5;color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center}
.selx-nav{margin-top:30px;display:flex;justify-content:flex-start}

.selx-chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.selx-chips .chip{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:99px;color:#DDD8CF;font:inherit;font-size:12.5px;font-weight:600;padding:7px 14px;cursor:pointer;transition:.2s}
.selx-chips .chip:hover{border-color:#8B84E8;color:#fff}

.selx-result .hero-card{display:grid;grid-template-columns:1.05fr 1fr;background:#15120F;border:1px solid rgba(255,255,255,.09);border-radius:22px;overflow:hidden}
.selx-result .hero-card .media{min-height:420px}
.selx-result .hero-card .media img{width:100%;height:100%;object-fit:cover}
.selx-result .hero-card .body{padding:40px 44px;display:flex;flex-direction:column;justify-content:center}
.selx-result .kicker{display:block;font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:#9D97F1;margin-bottom:12px}
.selx-result h2{font-size:clamp(28px,3.4vw,40px);line-height:1.12;font-weight:700}
.selx-result .ptype{margin-top:8px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#A9A29A}
.selx-result .why{margin-top:14px;font-size:15.5px;line-height:1.75;color:#D9D3CA}
.selx-result .specs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;border-top:1px solid rgba(255,255,255,.12);margin-top:24px;padding-top:20px}
.selx-result .specs b{display:block;font-family:var(--ff-display);font-size:20px;color:#fff}
.selx-result .specs span{font-size:12px;color:#A9A29A;line-height:1.5;display:block;margin-top:4px}
.selx-result .ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.selx-shots{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.selx-shots figure{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:4/3;margin:0}
.selx-shots img{width:100%;height:100%;object-fit:cover}
.selx-shots figcaption{position:absolute;left:12px;bottom:12px;background:rgba(11,10,9,.72);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:99px;backdrop-filter:blur(4px)}
.selx-also .lbl{margin:36px 0 12px;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:#A9A29A}
.also-card{display:grid;grid-template-columns:250px 1fr;background:#12100D;border:1px solid rgba(255,255,255,.08);border-radius:16px;overflow:hidden;transition:border-color .25s}
.also-card:hover{border-color:rgba(157,151,241,.55)}
.also-card img{width:100%;height:100%;min-height:170px;object-fit:cover}
.also-card .body{display:flex;flex-direction:column;gap:8px;padding:22px 26px}
.also-card b{font-size:19px;font-weight:700}
.also-card .body>span{font-size:13.5px;line-height:1.6;color:#A9A29A}
.also-card .go{color:#9D97F1;font-size:13.5px;font-weight:600}
.selx-share{margin-top:36px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;border-top:1px dashed rgba(255,255,255,.14);padding-top:28px}
.selx-share span{font-size:14.5px;color:#A9A29A}

@keyframes selxF{from{opacity:0;transform:translateX(38px)}to{opacity:1;transform:none}}
@keyframes selxB{from{opacity:0;transform:translateX(-38px)}to{opacity:1;transform:none}}
@keyframes selxU{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.selx-panel.fwd h2,.selx-panel.fwd .sub{animation:selxF .5s cubic-bezier(.22,1,.36,1) both}
.selx-panel.fwd .selx-card{animation:selxF .55s cubic-bezier(.22,1,.36,1) both;animation-delay:calc(60ms + var(--d,0ms))}
.selx-panel.back h2,.selx-panel.back .sub{animation:selxB .5s cubic-bezier(.22,1,.36,1) both}
.selx-panel.back .selx-card{animation:selxB .55s cubic-bezier(.22,1,.36,1) both;animation-delay:calc(60ms + var(--d,0ms))}
.selx-panel.result .selx-chips{animation:selxU .5s cubic-bezier(.22,1,.36,1) both}
.selx-panel.result .hero-card{animation:selxU .6s cubic-bezier(.22,1,.36,1) .08s both}
.selx-panel.result .selx-shots{animation:selxU .6s cubic-bezier(.22,1,.36,1) .18s both}
.selx-panel.result .selx-also,.selx-panel.result .selx-share{animation:selxU .6s cubic-bezier(.22,1,.36,1) .28s both}
@media(prefers-reduced-motion:reduce){
  .selx-panel h2,.selx-panel .sub,.selx-card,.selx-panel.result *{animation:none!important}
  .selx-progress .fill{transition:none}
  .mobile-menu,.mm-links{transition:none}
}

@media(max-width:1000px){
  .grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}
  .spec-flex{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .site-header .container{gap:20px}
  .header-cta{margin-left:auto}
  .nav-toggle{display:flex}
  .selx-grid.n3,.selx-grid.n4{grid-template-columns:repeat(2,1fr)}
  .selx-result .hero-card{grid-template-columns:1fr}
  .selx-result .hero-card .media{min-height:280px}
  .selx-result .hero-card .body{padding:30px 28px}
}
@media(max-width:640px){
  /* grid — 全部單欄 */
  .grid.c2,.grid.c3,.grid.c4,.gallery{grid-template-columns:1fr}
  /* container padding 收緊 */
  .container{padding:0 20px}

  /* --- hero 手機完整改版 --- */
  .hero .container{padding-top:40px;padding-bottom:40px}
  /* h1 手機字級：更大 clamp 底值，讓小螢幕也能看 */
  .hero h1{font-size:clamp(28px,7vw,48px)}
  .hero p.lead{font-size:16px;max-width:100%}
  /* CTA 按鈕手機改成堆疊單欄 */
  .hero .actions{flex-direction:column;gap:12px}
  .hero .actions .btn{width:100%}
  /* stat badges 手機 2x2 grid */
  .hero .stat-badges{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:24px}
  .stat-badge{padding:12px 14px}
  .stat-badge b{font-size:18px}
  .stat-badge span{font-size:11px}

  /* --- sections spacing 手機縮減 --- */
  .section{padding:60px 0}
  .section.tight{padding:48px 0}
  .sec-head{margin-bottom:32px}
  .sec-head p{font-size:15px}

  /* --- product cards 手機 --- */
  .pcard .body{padding:16px 20px 20px}
  .pcard h3{font-size:18px}
  .pcard .meta{flex-direction:column;align-items:flex-start;gap:8px}

  /* --- numstrip 手機 2 欄 grid --- */
  .numstrip{display:grid;grid-template-columns:repeat(2,1fr);border-bottom:none}
  .numstrip .cell{flex:none;padding:20px 10px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
  /* 奇數末尾格去掉右 border（避免單格最後一欄溢出線） */
  .numstrip .cell:nth-child(2n){border-right:none}
  .numstrip b{font-size:clamp(22px,5vw,34px)}

  /* --- vcard cap 字級 --- */
  .vcard .cap b{font-size:16px}

  /* --- CTA band 手機 --- */
  .ctaband{padding:32px 20px;flex-direction:column;align-items:stretch}
  .ctaband h2{font-size:22px}
  .ctaband .actions{flex-direction:column;gap:10px}
  .ctaband .actions .btn{width:100%}

  /* --- footer 手機 --- */
  .site-footer{margin-top:48px;padding:40px 0 0}
  .site-footer .bottom{flex-direction:column;text-align:center;gap:16px}
  .site-footer .socials{justify-content:center}
  .site-footer .copy{margin-top:0}

  /* --- selector / wizard pages --- */
  .header-cta{display:none}
  .nav-toggle{margin-left:auto}
  .selx-grid.n3,.selx-grid.n4,.selx-shots{grid-template-columns:1fr}
  .selx-head{padding-top:48px}
  .selx-result .specs{grid-template-columns:1fr 1fr}
  .selx-result .ctas .btn{width:100%;justify-content:center}
  .also-card{grid-template-columns:1fr}
  .also-card img{max-height:200px}
}

/* 480px — footer 單欄，解決 2 欄過窄問題 */
@media(max-width:480px){
  .site-footer .cols{grid-template-columns:1fr}
}