/* 朕宏 AI 實作案例 — 淺色儀表板風格（淺灰藍底 / 白卡 / 深藍面板 / 藍青高亮） */
:root{
  --bg:#eef2f9;--bg-2:#e6ebf5;--panel:#ffffff;--panel-solid:#ffffff;
  --line:#dfe6f2;--line-2:#c9d4e8;
  --ink:#1a2140;--muted:#66708c;--dim:#8a93ab;
  --navy:#1f2a5c;--navy-2:#151d44;--navy-3:#2a3a86;
  --blue:#3b6cf6;--cyan:#22c8e6;--teal:#22c8e6;--teal-2:#3b6cf6;--pink:#7c5cff;--gold:#3b6cf6;
  --tag:#eef3ff;--tag-ink:#2f4aa8;
  --shadow:0 10px 30px rgba(30,42,92,.08);--shadow-2:0 18px 50px rgba(30,42,92,.16);
  --glow:0 0 0 1px rgba(59,108,246,.25),0 18px 50px rgba(30,42,92,.16);
  --dark-grad:linear-gradient(135deg,#1b2557 0%,#25347a 55%,#1a2a6e 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans TC","Noto Sans CJK TC","PingFang TC","Microsoft JhengHei UI","Microsoft JhengHei",system-ui,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 10% -10%,rgba(59,108,246,.10),transparent 60%),radial-gradient(800px 500px at 95% 5%,rgba(34,200,230,.10),transparent 60%);background-attachment:fixed}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:900;letter-spacing:.01em}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.kicker{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.28em;margin-bottom:14px}
.lead{color:var(--muted);font-size:17px;max-width:760px}

/* header */
.top{background:var(--dark-grad);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 20px rgba(20,28,68,.25)}
.top-in{display:flex;align-items:center;gap:36px;height:72px}
.brand img{height:40px;width:auto}
.nav{display:flex;gap:26px;font-size:15px;font-weight:500}
.nav a{opacity:.86}.nav a:hover{opacity:1;color:#9fd8ff}

/* category bar */
.catbar{background:#fff;border-bottom:1px solid var(--line);scroll-margin-top:72px;box-shadow:0 6px 24px rgba(30,42,92,.05)}
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 20px}
.cat{border-left:3px solid var(--blue);padding:6px 0 6px 16px;border-radius:0 10px 10px 0;transition:background .15s}
.cat-name{font-weight:700;font-size:16px}
.cat-desc{color:var(--muted);font-size:13.5px;margin-top:2px}
.cat{cursor:pointer}.cat:hover{background:#f3f6fc}.cat.is-on{border-left-color:var(--cyan);background:#eef6ff}

/* hero（首頁） */
.hero{padding:72px 20px 36px;position:relative}
.hero h1{font-size:clamp(30px,3.6vw,44px);margin-bottom:18px;color:var(--navy)}
.home-bg{position:absolute;inset:0;z-index:-1;overflow:hidden;opacity:.28;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent)}
.home-bg img{width:100%;height:100%;object-fit:cover}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 26px;scroll-margin-top:90px;align-items:center}
.filt{border:1px solid var(--line-2);background:#fff;border-radius:999px;padding:7px 16px;font:inherit;font-size:14px;color:var(--muted);cursor:pointer;transition:all .15s}
.filt:hover{color:var(--navy);border-color:var(--blue)}
.filt.is-on{background:var(--dark-grad);border-color:transparent;color:#fff;font-weight:700;box-shadow:0 8px 20px rgba(31,42,92,.25)}
.count{color:var(--dim);font-size:14px;margin-left:6px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-bottom:80px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:var(--shadow)}
.card[hidden]{display:none}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(59,108,246,.45)}
.series{grid-column:1/-1;padding:30px 0 6px;border-top:1px solid var(--line-2);margin-top:10px;display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px}
.series:first-child{border-top:0;margin-top:0;padding-top:4px}
.series h2{font-size:22px;margin-bottom:0;color:var(--navy)}
.series h2::before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:linear-gradient(135deg,var(--blue),var(--cyan));margin-right:12px;transform:rotate(45deg);vertical-align:2px}
.series p{color:var(--muted);font-size:15px;max-width:760px;flex-basis:100%}
.card-lead{grid-column:span 2}
.card-lead .card-cover{aspect-ratio:2/1}
.card-lead h3{font-size:24px}
.card-lead p{font-size:15.5px}
.card-lead + .card .card-cover{aspect-ratio:auto;flex:1;min-height:200px}
.card-lead + .card .card-body{flex:none}
.card-cover{position:relative;aspect-ratio:16/10;background:#e6ebf5}
.cover,.cover-img{width:100%;height:100%;object-fit:cover}
.cover{display:flex;align-items:center;justify-content:center;position:relative;color:rgba(255,255,255,.92)}
.cover svg{width:34%;height:auto}
.cover-cat{position:absolute;left:16px;bottom:12px;font-size:12px;letter-spacing:.2em;opacity:.8}
.cover-automation{background:radial-gradient(120% 120% at 20% 10%,#3b6cf6,#1b2557 70%)}
.cover-knowledge{background:radial-gradient(120% 120% at 20% 10%,#22c8e6,#164a6e 70%)}
.cover-content{background:radial-gradient(120% 120% at 20% 10%,#7c5cff,#2a1f66 70%)}
.cover-platform{background:radial-gradient(120% 120% at 20% 10%,#4f8cff,#17325f 70%)}
.badge{position:absolute;top:12px;right:12px;z-index:2;background:var(--cyan);color:#0a2a3a;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;box-shadow:0 4px 14px rgba(34,200,230,.45)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.06em}
.meta .year{color:var(--blue)}
.meta .client{color:var(--muted);font-weight:500;letter-spacing:.04em}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{background:var(--tag);color:var(--tag-ink);font-size:12.5px;padding:3px 10px;border-radius:999px}
.card h3{font-size:19px;color:var(--navy)}
.card p{color:var(--muted);font-size:14.5px;flex:1}
.more{color:var(--blue);font-weight:700;font-size:14px}

/* how / why */
.how{background:#fff;border-top:1px solid var(--line);padding:72px 0 80px}
.how h2{font-size:28px;margin-bottom:12px;color:var(--navy)}
.obs{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:28px}
.ob{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:18px;position:relative;overflow:hidden}
.ob::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.ob-n{width:30px;height:30px;border-radius:50%;background:var(--dark-grad);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.ob-t{font-weight:700;font-size:17px;margin-top:12px}
.ob-d{color:var(--muted);font-size:13.5px;margin-top:4px}
.whys{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}
.why{border-left:3px solid var(--cyan);padding-left:16px}
.why h4{font-size:17px;margin-bottom:6px}
.why p{color:var(--muted);font-size:14.5px}
.cta{margin-top:56px;background:var(--dark-grad);color:#fff;border-radius:18px;padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow-2)}
.cta h3{font-size:22px;margin-bottom:6px}
.cta p{opacity:.85;font-size:15px;max-width:640px}
.btn{background:#fff;color:var(--navy);font-weight:700;padding:12px 22px;border-radius:10px;white-space:nowrap;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.btn:hover{background:#eef6ff}

/* 共用區塊（工具、同系列、上下頁、照片） */
.sec{padding-top:56px}
.sec h2{font-size:28px;margin-bottom:22px;color:var(--navy)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:#fff;border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;font-size:14px;color:var(--ink)}
.rels{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.rel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:4px;transition:border-color .15s,box-shadow .15s;box-shadow:var(--shadow)}
.rel:hover{border-color:var(--blue);box-shadow:var(--shadow-2)}
.rel-t{font-weight:700}
.rel-m{color:var(--muted);font-size:13px}
.pn{display:flex;justify-content:space-between;gap:16px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line-2);font-size:14px;font-weight:500;color:var(--blue)}
.pn a:nth-child(2){color:var(--muted)}
.photos{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.ph{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.ph img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.ph-cap{display:block;padding:10px 14px;font-size:14px;color:var(--muted)}
.ph:hover{border-color:var(--blue)}
@media (max-width:640px){.photos{grid-template-columns:1fr}}

/* 3D 整合架構（深藍面板） */
.map3d{margin-top:40px;background:radial-gradient(120% 140% at 20% 0%,#2a3a86 0%,#1b2557 55%,#141c40 100%);border-radius:18px;color:#fff;overflow:hidden;box-shadow:var(--shadow-2)}
.map3d-head{padding:26px 30px 0;position:relative;z-index:2}
.map3d-head h2{font-size:24px;margin-bottom:6px}
.map3d-head p{opacity:.72;font-size:14px;max-width:640px}
.map3d-canvas{height:520px;margin-top:-30px}
.map3d-canvas canvas{display:block;width:100%!important;height:100%!important}
@media (max-width:640px){.map3d-canvas{height:380px}.map3d-head{padding:20px 20px 0}}

/* footer */
.foot{background:var(--navy-2);color:#fff;padding:36px 0}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-name{font-weight:700}
.foot-en{opacity:.65;font-size:13px}
.foot-contact{display:flex;gap:20px;font-size:14px;opacity:.9}

@media (max-width:980px){
  .cats{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .rels{grid-template-columns:repeat(2,1fr)}
  .obs{grid-template-columns:repeat(3,1fr)}
  .whys{grid-template-columns:1fr}
}
@media (max-width:640px){
  .top-in{height:60px;gap:16px}.brand img{height:32px}.nav{gap:14px;font-size:14px}
  .cats{grid-template-columns:1fr;gap:10px;padding:16px 20px}
  .hero{padding:44px 20px 24px}
  .grid{grid-template-columns:1fr}
  .card-lead{grid-column:auto}.card-lead .card-cover{aspect-ratio:16/10}.card-lead h3{font-size:20px}
  .card-lead + .card .card-cover{aspect-ratio:16/10;flex:none}.card-lead + .card .card-body{flex:1}
  .obs{grid-template-columns:1fr}.rels{grid-template-columns:1fr}
  .cta{flex-direction:column;align-items:flex-start;padding:24px}
  .sec h2,.how h2{font-size:24px}
  .pn{flex-direction:column}
}

/* ===== 案例內頁：捲動敘事 ===== */
.story-page .top{position:fixed;left:0;right:0;top:0;background:rgba(27,37,87,.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.story h1,.story h2{font-family:"Noto Serif TC","Noto Serif CJK TC","Source Han Serif TC","PMingLiU",serif;font-weight:900;letter-spacing:.02em}
/* 開場 */
.s-hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--navy-2);color:#fff}
.s-hero-media{position:absolute;inset:-6% 0;will-change:transform}
.s-hero-media .cover-img,.s-hero-media .cover,.s-hero-video{width:100%;height:100%;object-fit:cover;display:block}
.s-hero-media .cover svg{width:22%}
.s-hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(21,29,68,.5) 0%,rgba(21,29,68,.35) 30%,rgba(21,29,68,.9) 68%,#1b2557 100%)}
.s-hero-text{position:relative;z-index:2;padding-bottom:14vh;padding-top:22vh;max-width:1180px}
.s-hero-text > *{animation:fadeUp 1s cubic-bezier(.2,.7,.2,1) both}
.s-hero-text > :nth-child(2){animation-delay:.12s}.s-hero-text > :nth-child(3){animation-delay:.24s}.s-hero-text > :nth-child(4){animation-delay:.36s}.s-hero-text > :nth-child(5){animation-delay:.48s}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.s-hero-media{animation:heroIn 2.2s cubic-bezier(.2,.7,.2,1) both}
@keyframes heroIn{from{transform:scale(1.18)}to{transform:scale(1)}}
.s-hero-text .crumb{color:rgba(255,255,255,.7);margin-bottom:14px;font-size:14px}.s-hero-text .crumb a{color:#9fd8ff}
.s-hero-text .meta .year{color:var(--cyan)}.s-hero-text .meta .client{color:rgba(255,255,255,.8)}
.s-hero-text h1{font-size:clamp(34px,5.2vw,68px);line-height:1.15;margin:14px 0 18px;max-width:18em;text-shadow:0 4px 30px rgba(0,0,0,.45)}
.s-hero-text .tags{margin-bottom:20px}.s-hero-text .tag{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.2)}
.s-hero-text .lead{color:rgba(255,255,255,.86);font-size:clamp(16px,1.35vw,20px);max-width:44em}
.s-hero .badge{position:static}
.s-scroll{position:absolute;right:28px;bottom:26px;z-index:2;color:rgba(255,255,255,.7);font-size:12px;letter-spacing:.25em;writing-mode:vertical-rl}
.s-scroll span{display:inline-block;margin-top:8px;animation:bob 1.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}
/* 挑戰段：背景圖＋深色罩 */
.s-dark{position:relative;background:var(--dark-grad);color:#fff;padding:12vh 0 10vh;overflow:hidden;min-height:100vh;display:flex;align-items:center}
.s-dark .wrap{width:100%}
.s-bg{position:absolute;inset:-10% 0;width:100%;height:120%;object-fit:cover;opacity:.35;will-change:transform;mix-blend-mode:screen}
.s-bg.is-video{opacity:.6;mix-blend-mode:normal}
.s-bg-veil{position:absolute;inset:0;background:linear-gradient(180deg,#1b2557 0%,rgba(27,37,87,.35) 30%,rgba(27,37,87,.5) 70%,#1a2a6e 100%)}
.s-dark .wrap{position:relative;z-index:2}
.s-split{display:grid;grid-template-columns:1fr 1.4fr;gap:60px;align-items:start}
.s-sticky{position:sticky;top:120px}
.s-sticky h2{font-size:clamp(30px,3.6vw,50px);line-height:1.2}
.s-list{list-style:none;margin:0;padding:0}
.s-list li{--glow:1;display:grid;grid-template-columns:70px 1fr;gap:18px;padding:30px 26px;margin-bottom:12px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(8px);align-items:start}
.s-list .num{font-family:"Noto Serif TC",serif;font-size:44px;line-height:1;color:var(--cyan);opacity:var(--glow);font-weight:900}
.s-list p{font-size:clamp(17px,1.4vw,21px);line-height:1.7;color:rgba(255,255,255,.92)}
/* 整合段：左釘（3D 或圖）、右步驟 */
.s-integrate{display:grid;grid-template-columns:1fr 1fr;background:var(--bg);color:var(--ink);position:relative}
.s-pin{height:100vh;position:sticky;top:0;align-self:start;z-index:1}
.s-integrate .map3d{margin:0;border-radius:0;height:100%;box-shadow:none;background:radial-gradient(120% 140% at 30% 20%,#2a3a86 0%,#1b2557 55%,#141c40 100%)}
.s-integrate .map3d-head{padding:110px 40px 0;position:relative;z-index:2;pointer-events:none}
.s-integrate .map3d-canvas{position:absolute;inset:0;height:auto;margin:0}
.s-steps{padding:16vh 6vw 16vh 5vw;background:#fff;color:var(--ink)}
.s-steps-in{max-width:560px}
.s-steps h2{font-size:clamp(28px,3vw,42px);margin-bottom:34px;color:var(--navy)}
.step{display:flex;gap:18px;align-items:flex-start;padding:22px 22px;margin-bottom:12px;border-radius:14px;background:var(--bg);border:1px solid var(--line)}
.step .n{flex:none;width:34px;height:34px;border-radius:50%;background:var(--dark-grad);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px;margin-top:2px}
.step p{font-size:17px;line-height:1.75;font-weight:500}
/* 整合段（無 3D）：釘住的圖 */
.s-pin-media{position:absolute;inset:0;overflow:hidden;background:var(--navy-2)}
.s-pin-media .cover-img,.s-pin-media .cover,.s-pin-media .s-pin-img,.s-pin-media video{width:100%;height:100%;object-fit:cover;transform:scale(1.06)}
.s-pin-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(21,29,68,.5),rgba(21,29,68,.15) 45%,rgba(21,29,68,.92))}
.s-pin-text{position:absolute;left:40px;right:40px;bottom:48px;color:#fff}
.s-pin-text h2{font-size:clamp(26px,2.6vw,38px);line-height:1.25}
/* 成果段：滿版大圖 */
.s-outcome{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden;color:#fff;background:var(--navy-2)}
.s-outcome-media{position:absolute;inset:-14% 0;width:100%;height:128%;object-fit:cover;will-change:transform}
.s-outcome-veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(21,29,68,.94) 0%,rgba(21,29,68,.8) 45%,rgba(21,29,68,.3) 100%)}
.s-outcome-text{position:relative;z-index:2;padding-top:12vh;padding-bottom:12vh}
.s-outcome h2{font-size:clamp(30px,3.6vw,50px);margin-bottom:28px}
.s-oc{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:900px}
.s-oc li{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(8px);border-radius:14px;padding:20px 22px;font-size:16.5px;line-height:1.7}
.s-oc li:first-child{grid-column:1/-1;background:linear-gradient(120deg,rgba(34,200,230,.28),rgba(59,108,246,.28));border-color:rgba(34,200,230,.6);font-size:19px;font-weight:700}
/* 照片列 */
.s-photos{padding-top:64px}
.s-photos .photos{grid-template-columns:repeat(2,1fr)}
.story .sec h2{font-size:26px}
.story .sec{color:var(--ink)}
.no-motion .s-hero-media{transform:none}
@media (max-width:980px){
  .s-split{grid-template-columns:1fr;gap:20px}.s-sticky{position:static}
  .s-integrate{grid-template-columns:1fr}.s-pin{height:70vh;position:relative}.s-integrate .map3d-head{padding:80px 24px 0}
  .s-steps{padding:60px 20px;border-left:0}
  .s-oc{grid-template-columns:1fr}
  .s-outcome-veil{background:linear-gradient(180deg,rgba(21,29,68,.6),rgba(21,29,68,.92))}
}
@media (max-width:640px){
  .s-hero-text{padding-top:16vh;padding-bottom:12vh}.s-list li{grid-template-columns:48px 1fr;padding:22px 18px}.s-list .num{font-size:30px}
  .s-scroll{display:none}
}
/* 右側頁點（滾輪翻頁用） */
.s-dots{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:30}
.s-dots button{width:10px;height:10px;border-radius:50%;border:0;padding:0;background:rgba(255,255,255,.35);box-shadow:0 0 0 1px rgba(27,37,87,.35);cursor:pointer;transition:transform .2s,background .2s}
.s-dots button.is-on{background:var(--cyan);transform:scale(1.35);box-shadow:0 0 12px rgba(34,200,230,.8)}
@media (max-width:980px){.s-dots{display:none}}
/* 開場影片牆（assets/video/<slug>/*.mp4） */
.s-video-wall{display:grid;gap:3px;background:#0f1633}
.vw-2{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr)}
.vw-3{grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr}
.vw-tile{width:100%;height:100%;object-fit:cover;display:block;opacity:0;animation:vwIn 1.6s ease-out both,vwDrift 18s ease-in-out infinite alternate;filter:saturate(1.05) brightness(.85)}
.vw-tile:nth-child(2){animation-direction:normal,alternate-reverse}
@keyframes vwIn{from{opacity:0;transform:scale(1.06)}to{opacity:1;transform:scale(1)}}
@keyframes vwDrift{from{transform:scale(1)}to{transform:scale(1.08)}}
.s-hero-media.s-video-wall{animation:none}
@media (max-width:640px){.vw-2{grid-template-columns:1fr 1fr}}
/* Demo 按鈕 */
.demo-row{margin-top:22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn-demo{background:linear-gradient(90deg,var(--cyan),var(--blue));color:#fff;box-shadow:0 10px 26px rgba(59,108,246,.35)}
.btn-demo:hover{filter:brightness(1.08);background:linear-gradient(90deg,var(--cyan),var(--blue))}
.demo-hint{font-size:13px;color:rgba(255,255,255,.7)}
.cta .btn-demo{margin-left:10px}