/* 丰碩數位官網樣式：同源字型、零第三方依賴。 */
@font-face {
  font-family: "Noto Sans TC";
  src: url("/assets/fonts/noto-sans-tc.26be11646c.woff2") format("woff2");
  font-weight: 400 900;
  font-display: swap;
}

:root {
  --bg: #09090b;
  --bg-1: #0f0f12;
  --bg-2: #16161a;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f4f5;
  --muted: #b4b4bc;
  --dim: #8e8e98;
  --red: #ef4444;
  --orange: #f97316;
  --ember: linear-gradient(100deg, var(--red) 0%, #f5512a 45%, var(--orange) 100%);
  --ember-soft: rgba(239, 68, 68, 0.14);
  --ok: #fb923c;
  --radius: 14px;
  --radius-lg: 22px;
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(88px, 12vw, 168px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.85;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 800; text-wrap: balance; }
p, li { text-wrap: pretty; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--red); color: #fff; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 6px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 700;
}
.skip-link:focus { top: 16px; }

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.icon { width: 1.25em; height: 1.25em; flex: none; }

/* ---------- 文字 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--orange);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.display {
  font-size: clamp(2.5rem, 6.4vw, 5.6rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0;
}
.h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); font-weight: 850; line-height: 1.2; }
.h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 750; }
.lead { font-size: clamp(1.08rem, 1.5vw, 1.3rem); color: var(--muted); line-height: 1.85; max-width: 46em; }
.muted { color: var(--muted); }
.ember-text {
  background: var(--ember); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head { display: grid; gap: 20px; margin-bottom: clamp(40px, 6vw, 72px); max-width: 820px; }
.section-head.center { margin-inline: auto; text-align: center; justify-items: center; }
.fine { font-size: 0.875rem; color: var(--dim); }

/* ---------- 按鈕 ---------- */
.btn {
  --h: 52px;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: var(--h); padding: 0 26px; border-radius: 999px;
  font-weight: 700; font-size: 1rem; line-height: 1; white-space: nowrap;
  border: 1px solid transparent; cursor: pointer; isolation: isolate; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.3s, background-color 0.3s;
}
.btn .icon { transition: transform 0.4s var(--ease); }
.btn:hover .icon { transform: translateX(4px); }
.btn-primary { background: var(--ember); color: #fff; box-shadow: 0 10px 30px -12px rgba(239, 68, 68, 0.7); }
.btn-primary::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 0.9s var(--ease);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -14px rgba(249, 115, 22, 0.8); }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.06); }
.btn-sm { --h: 42px; padding: 0 18px; font-size: 0.94rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); }
.link-arrow .icon { color: var(--orange); transition: transform 0.4s var(--ease); }
.link-arrow:hover .icon { transform: translateX(4px); }

/* ---------- 頁首 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50; height: 76px; display: flex; align-items: center;
  transition: background-color 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(9, 9, 11, 0.78);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark { width: 36px; height: 36px; }
.brand-text { display: grid; line-height: 1.1; }
.brand-name { font-weight: 850; font-size: 1.22rem; letter-spacing: 0.04em; }
.brand-sub { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.22em; color: var(--orange); }
.nav-desktop { display: none; align-items: center; gap: 30px; font-size: 0.95rem; }
.nav-desktop > a:not(.btn) { position: relative; color: var(--muted); padding: 10px 0; transition: color 0.3s; }
.nav-desktop > a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 1px; background: var(--ember);
  transform: scaleX(0); transform-origin: left; transition: transform 0.5s var(--ease);
}
.nav-desktop > a:not(.btn):hover, .nav-desktop > a[aria-current="page"] { color: var(--text); }
.nav-desktop > a:not(.btn):hover::after, .nav-desktop > a[aria-current="page"]::after { transform: scaleX(1); }
.menu-toggle {
  display: inline-grid; place-content: center; gap: 7px; width: 48px; height: 48px;
  border: 1px solid var(--line-strong); border-radius: 50%; background: rgba(9, 9, 11, 0.6); cursor: pointer;
}
.menu-toggle-bar { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform 0.45s var(--ease); }
.menu-open .menu-toggle-bar:first-child { transform: translateY(4.25px) rotate(45deg); }
.menu-open .menu-toggle-bar:last-child { transform: translateY(-4.25px) rotate(-45deg); }
.mobile-menu {
  position: fixed; inset: 0; z-index: 40; background: rgba(9, 9, 11, 0.97);
  padding-top: 96px; opacity: 0; transition: opacity 0.35s var(--ease);
}
.mobile-menu.is-open { opacity: 1; }
.mobile-menu-inner { display: grid; gap: 4px; }
.mobile-menu-inner > a:not(.btn) {
  font-size: 1.6rem; font-weight: 800; padding: 14px 0; border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(14px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.mobile-menu-inner .btn { margin-top: 28px; }
.mobile-menu.is-open .mobile-menu-inner > a { opacity: 1; transform: none; }
.mobile-menu.is-open .mobile-menu-inner > a:nth-child(2) { transition-delay: 0.04s; }
.mobile-menu.is-open .mobile-menu-inner > a:nth-child(3) { transition-delay: 0.08s; }
.mobile-menu.is-open .mobile-menu-inner > a:nth-child(4) { transition-delay: 0.12s; }
.mobile-menu.is-open .mobile-menu-inner > a:nth-child(5) { transition-delay: 0.16s; }
body.menu-open { overflow: hidden; }
@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
  .menu-toggle, .mobile-menu { display: none !important; }
}

/* ---------- 主視覺 ---------- */
.hero {
  position: relative; min-height: min(100svh, 980px); display: grid; align-items: end;
  padding: 140px 0 clamp(56px, 9vw, 110px); isolation: isolate; overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img {
  width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%;
  transform: scale(1.06); will-change: transform;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(9, 9, 11, 0.96) 0%, rgba(9, 9, 11, 0.82) 38%, rgba(9, 9, 11, 0.25) 75%, rgba(9, 9, 11, 0.5) 100%),
    linear-gradient(0deg, var(--bg) 0%, transparent 35%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 30% 60%, #000 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 30% 60%, #000 10%, transparent 75%);
  opacity: 0.55;
}
.hero-scan {
  position: absolute; left: 0; right: 0; top: 0; height: 1px; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(249, 115, 22, 0.8), transparent);
  box-shadow: 0 0 24px 2px rgba(239, 68, 68, 0.45);
  animation: scan 7s var(--ease-in-out) infinite;
}
@keyframes scan { 0% { transform: translateY(12vh); opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { transform: translateY(92vh); opacity: 0; } }
.hero-content { display: grid; gap: 28px; max-width: 900px; }
.hero-content .lead { max-width: 38em; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 12px;
  font-family: var(--mono); font-size: 0.8rem; color: var(--dim); letter-spacing: 0.06em;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .icon { color: var(--orange); width: 1rem; height: 1rem; }
.hero-sub { min-height: auto; padding-top: 150px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.85rem; color: var(--dim); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb span[aria-hidden] { opacity: 0.5; }

/* 字元逐一顯現 */
.split-line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.split-line > span { display: inline-block; }
.js .split-line > span { transform: translateY(105%); }
.is-ready .split-line > span { animation: rise 0.55s var(--ease) forwards; }
.is-ready .split-line:nth-child(2) > span { animation-delay: 0.12s; }
.is-ready .split-line:nth-child(3) > span { animation-delay: 0.24s; }
@keyframes rise { to { transform: none; } }
.js .fade-up { opacity: 0; transform: translateY(18px); }
.is-ready .fade-up { animation: fadeUp 0.45s var(--ease) forwards; }
.is-ready .fade-up.d1 { animation-delay: 0.1s; }
.is-ready .fade-up.d2 { animation-delay: 0.15s; }
.is-ready .fade-up.d3 { animation-delay: 0.2s; }
@keyframes fadeUp { to { opacity: 1; transform: none; } }

/* 捲動顯現 */
.js [data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity 0.4s var(--ease), transform 0.4s var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal].d1 { transition-delay: 0.08s; }
[data-reveal].d2 { transition-delay: 0.16s; }
[data-reveal].d3 { transition-delay: 0.24s; }
[data-reveal].d4 { transition-delay: 0.32s; }
[data-reveal].d5 { transition-delay: 0.4s; }

/* ---------- 區塊 ---------- */
.section { padding: var(--section) 0; position: relative; }
.section-tight { padding: calc(var(--section) * 0.6) 0; }
.section-alt { background: var(--bg-1); border-block: 1px solid var(--line); }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); }

.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
@media (min-width: 720px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 720px) and (max-width: 1023px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }

/* 卡片：游標光暈 */
.card {
  position: relative; padding: clamp(24px, 3vw, 34px); border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line); overflow: hidden; isolation: isolate;
  transition: border-color 0.4s, transform 0.5s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.4s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(249, 115, 22, 0.13), transparent 60%);
}
.card:hover { border-color: var(--line-strong); }
.card:hover::before { opacity: 1; }
.card h3 { margin-bottom: 12px; }
.card p:last-child { margin-bottom: 0; }
.card-icon {
  display: inline-grid; place-items: center; width: 48px; height: 48px; margin-bottom: 22px; border-radius: 12px;
  background: var(--ember-soft); color: var(--orange); border: 1px solid rgba(249, 115, 22, 0.25);
}
.card-icon .icon { width: 22px; height: 22px; }
.card-index { position: absolute; top: 24px; right: 26px; font-family: var(--mono); font-size: 0.8rem; color: var(--dim); }

/* 服務卡（含圖） */
.service-card { padding: 0; display: grid; grid-template-rows: auto 1fr; }
.service-card:hover { transform: translateY(-4px); }
.service-card .media { aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.service-card .media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.service-card:hover .media img { transform: scale(1.05); }
.service-card .body { padding: 26px 28px 30px; display: grid; gap: 10px; align-content: start; }
.service-card .body p { color: var(--muted); font-size: 0.98rem; margin: 0; }
.service-card .tag { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; color: var(--orange); }
.service-card.featured { border-color: rgba(249, 115, 22, 0.35); }
@media (min-width: 1024px) {
  .service-card.featured { grid-column: span 2; grid-row: span 2; }
  .service-card.featured .media { aspect-ratio: auto; min-height: 380px; }
  .service-card.featured .body { padding: 36px 40px 40px; }
  .service-card.featured .h3 { font-size: 1.9rem; }
}

/* 統計 */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.stat { padding: 30px 0 6px; border-bottom: 1px solid var(--line); }
.stat:nth-child(odd) { padding-right: 18px; }
.stat-value { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 900; line-height: 1; white-space: nowrap; }
.stat-label { margin-top: 12px; color: var(--muted); font-size: 0.95rem; }
@media (min-width: 900px) { .stats { grid-template-columns: repeat(4, 1fr); } .stat { padding-right: 18px; } }

/* 雙欄 */
.split { display: grid; gap: clamp(32px, 6vw, 80px); align-items: center; }
@media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; } .split.wide-left { grid-template-columns: 1.15fr 0.85fr; } }
.media-frame { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 60%, rgba(9, 9, 11, 0.6));
}

/* 清單 */
.checklist { display: grid; gap: 14px; }
.checklist li { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; color: var(--muted); }
.checklist li strong { color: var(--text); font-weight: 700; }
.checklist .icon { color: var(--orange); margin-top: 0.3em; width: 1.1rem; height: 1.1rem; }
.xlist .icon { color: var(--dim); }

/* 對照表 */
.compare { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.compare-row { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--line); }
.compare-row:first-child { border-top: 0; }
.compare-row > div { padding: 18px 22px; }
.compare-head { background: var(--bg-2); font-weight: 800; }
.compare-head > div:nth-child(2) { color: var(--dim); }
.compare-head > div:nth-child(3) { color: var(--orange); }
.compare-label { font-weight: 700; }
.compare-old { color: var(--dim); }
.compare-new { color: var(--text); background: rgba(249, 115, 22, 0.04); }
.compare-row:not(.compare-head) .compare-old::before { content: "舊站　"; font-size: 0.8rem; color: var(--dim); }
.compare-row:not(.compare-head) .compare-new::before { content: "重建後　"; font-size: 0.8rem; color: var(--orange); }
.compare-head { display: none; }
@media (min-width: 820px) {
  .compare-row { grid-template-columns: 0.8fr 1fr 1.2fr; }
  .compare-head { display: grid; }
  .compare-row:not(.compare-head) .compare-old::before, .compare-row:not(.compare-head) .compare-new::before { content: none; }
}

/* 流程 */
.steps { counter-reset: step; display: grid; gap: 0; border-left: 1px solid var(--line); margin-left: 8px; }
.step { position: relative; padding: 0 0 44px 40px; }
.step:last-child { padding-bottom: 0; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; left: -17px; top: -2px; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; background: var(--bg); border: 1px solid rgba(249, 115, 22, 0.5);
  font-family: var(--mono); font-size: 0.78rem; color: var(--orange);
}
.step h3 { font-size: 1.25rem; margin-bottom: 8px; }
.step p { color: var(--muted); margin: 0; }
.step .fine { margin-top: 8px; }
@media (min-width: 960px) {
  .steps.horizontal { grid-template-columns: repeat(5, 1fr); border-left: 0; border-top: 1px solid var(--line); margin-left: 0; gap: 24px; }
  .steps.horizontal .step { padding: 44px 0 0; }
  .steps.horizontal .step::before { left: 0; top: -17px; }
}

/* 價格 */
.pricing { display: grid; gap: 20px; align-items: stretch; }
@media (min-width: 960px) { .pricing { grid-template-columns: repeat(3, 1fr); } }
.plan { display: grid; gap: 18px; align-content: start; }
.plan.recommended { border-color: rgba(249, 115, 22, 0.5); background: linear-gradient(180deg, rgba(239, 68, 68, 0.08), rgba(255, 255, 255, 0.01)); }
.plan-badge {
  position: absolute; top: 22px; right: 22px; font-size: 0.75rem; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  background: var(--ember); color: #fff;
}
.plan-name { font-size: 1.15rem; font-weight: 800; }
.plan-price { font-size: clamp(2.2rem, 3.6vw, 2.9rem); font-weight: 900; line-height: 1; }
.plan-price small { font-size: 1rem; font-weight: 600; color: var(--muted); margin-left: 4px; }
.plan-note { color: var(--muted); font-size: 0.95rem; margin: 0; }
.plan .checklist { font-size: 0.97rem; }
.plan .btn { margin-top: 8px; width: 100%; }
.addon { display: grid; gap: 12px; padding: 26px 28px; border: 1px dashed var(--line-strong); border-radius: var(--radius-lg); margin-top: 20px; }
@media (min-width: 820px) { .addon { grid-template-columns: 1fr auto; align-items: center; } }

/* 自我檢查 */
.check-panel { display: grid; gap: 24px; }
@media (min-width: 960px) { .check-panel { grid-template-columns: 1.2fr 0.8fr; align-items: start; } }
.check-list { display: grid; gap: 10px; }
.check-item {
  display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: center; cursor: pointer;
  padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.3s, background-color 0.3s;
}
.check-item:hover { border-color: var(--line-strong); }
.check-item input { appearance: none; width: 22px; height: 22px; margin: 0; border: 1.5px solid var(--line-strong); border-radius: 6px; display: grid; place-items: center; cursor: pointer; transition: background-color 0.2s, border-color 0.2s; }
.check-item input::after { content: ""; width: 10px; height: 6px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg) scale(0); transition: transform 0.25s var(--ease); margin-top: -3px; }
.check-item input:checked { background: var(--red); border-color: var(--red); }
.check-item input:checked::after { transform: rotate(-45deg) scale(1); }
.check-item:has(input:checked) { border-color: rgba(239, 68, 68, 0.5); background: rgba(239, 68, 68, 0.06); }
.check-result { position: sticky; top: 100px; display: grid; gap: 16px; }
.meter { height: 8px; border-radius: 999px; background: var(--bg-2); overflow: hidden; }
.meter > span { display: block; height: 100%; width: 100%; background: var(--ember); transform-origin: left; transform: scaleX(0); transition: transform 0.7s var(--ease); }
.check-score { font-size: 3rem; font-weight: 900; line-height: 1; }
.check-verdict { font-size: 1.15rem; font-weight: 800; }

/* FAQ */
.faq { display: grid; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex; justify-content: space-between; gap: 20px; align-items: center; cursor: pointer;
  padding: 24px 0; font-size: 1.12rem; font-weight: 750; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; flex: none; width: 12px; height: 12px; border-right: 2px solid var(--orange); border-bottom: 2px solid var(--orange);
  transform: rotate(45deg) translateY(-4px); transition: transform 0.4s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(-135deg) translateY(-4px); }
.faq-answer { padding: 0 0 26px; color: var(--muted); max-width: 52em; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer a { color: var(--orange); text-decoration: underline; text-underline-offset: 3px; }

/* 案例 */
.case { display: grid; gap: 14px; }
.case-tag { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.12em; color: var(--orange); }
.case dl { display: grid; gap: 10px; margin: 6px 0 0; }
.case dt { font-size: 0.8rem; color: var(--dim); }
.case dd { margin: 0; color: var(--muted); font-size: 0.97rem; }

/* 行動呼籲帶 */
.cta-band {
  position: relative; overflow: hidden; isolation: isolate; border-radius: var(--radius-lg);
  padding: clamp(40px, 7vw, 88px); border: 1px solid rgba(249, 115, 22, 0.3);
  background: radial-gradient(800px 400px at 85% 120%, rgba(239, 68, 68, 0.35), transparent 60%),
              radial-gradient(600px 300px at 0% -20%, rgba(249, 115, 22, 0.18), transparent 60%), var(--bg-1);
  display: grid; gap: 28px;
}
@media (min-width: 960px) { .cta-band { grid-template-columns: 1.4fr auto; align-items: center; } }

/* 表單 */
.form { display: grid; gap: 18px; }
.form-row { display: grid; gap: 18px; }
@media (min-width: 720px) { .form-row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 8px; }
.field label, .field legend { font-size: 0.92rem; font-weight: 700; }
.field .req { color: var(--orange); margin-left: 4px; }
.input, .select, .textarea {
  width: 100%; min-height: 52px; padding: 13px 16px; border-radius: 12px; border: 1px solid var(--line-strong);
  background: var(--bg-1); color: var(--text); font: inherit; font-size: 1rem; transition: border-color 0.25s, box-shadow 0.25s;
}
.textarea { min-height: 150px; resize: vertical; line-height: 1.7; }
.input::placeholder, .textarea::placeholder { color: #85858f; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.18); }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 22px) 23px, calc(100% - 16px) 23px; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 44px; }
.consent { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; font-size: 0.92rem; color: var(--muted); }
.consent input { width: 20px; height: 20px; margin-top: 4px; accent-color: var(--red); }
.consent a { color: var(--orange); text-decoration: underline; text-underline-offset: 3px; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form-status { min-height: 1.6em; font-weight: 700; }
.form-status.ok { color: var(--orange); }
.form-status.err { color: #fca5a5; }
.btn[aria-busy="true"] { opacity: 0.7; pointer-events: none; }
.contact-info { display: grid; gap: 22px; }
.contact-info a, .contact-info p { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; margin: 0; color: var(--muted); }
.contact-info .icon { color: var(--orange); margin-top: 0.35em; }
.contact-info strong { display: block; color: var(--text); }

/* 法律頁 */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.4rem; margin: 2.2em 0 0.7em; }
.prose p, .prose li { color: var(--muted); }
.prose ul { list-style: disc; padding-left: 1.4em; display: grid; gap: 6px; margin-bottom: 1em; }
.prose a { color: var(--orange); text-decoration: underline; text-underline-offset: 3px; }

/* 頁尾 */
.site-footer { border-top: 1px solid var(--line); padding: 72px 0 36px; background: var(--bg); font-size: 0.95rem; }
.footer-grid { display: grid; gap: 40px; }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; } }
.footer-tagline { color: var(--muted); margin-top: 18px; }
.footer-col { display: grid; gap: 10px; align-content: start; }
.footer-col a, .footer-address { color: var(--muted); margin: 0; transition: color 0.25s; }
.footer-col a { padding: 4px 0; }
.footer-col a:hover { color: var(--text); }
.footer-title { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.16em; color: var(--dim); margin: 0 0 6px; text-transform: uppercase; }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--dim); font-size: 0.85rem; }
.footer-legal p { margin: 0; }

/* 減少動態 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .hero-scan { display: none; }
  .js [data-reveal], .js .fade-up { opacity: 1; transform: none; }
  .js .split-line > span { transform: none; }
  .hero-media img { transform: none; }
}
.m0 { margin: 0; }

/* ---------- WebGL 場景 ---------- */
.scene-fixed { position: fixed; inset: 0; z-index: -1; background: var(--bg); }
.scene-fixed canvas, .hero-media canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.scene-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; transition: opacity 0.45s var(--ease); }
.is-live .scene-poster { opacity: 0; }
.hero-home { min-height: 100svh; align-items: center; padding-bottom: 120px; }
.hero-home::before {
  background: linear-gradient(90deg, rgba(9, 9, 11, 0.88) 0%, rgba(9, 9, 11, 0.55) 40%, transparent 72%),
              linear-gradient(0deg, rgba(9, 9, 11, 0.6) 0%, transparent 30%);
}
.scroll-cue { display: inline-flex; align-items: center; gap: 12px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.14em; color: var(--dim); }
.scroll-cue::after { content: ""; width: 1px; height: 42px; background: linear-gradient(var(--orange), transparent); animation: cue 2.4s var(--ease-in-out) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

.chapters { position: relative; }
.after-scene { position: relative; background: var(--bg); }
.after-scene::before { content: ""; position: absolute; left: 0; right: 0; top: -30vh; height: 30vh; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.principle-num { font-family: var(--mono); font-size: 0.8rem; color: var(--orange); letter-spacing: 0.12em; }
.pain { border-left: 2px solid rgba(239, 68, 68, 0.6); padding: 4px 0 4px 20px; }
.pain h3 { font-size: 1.15rem; margin-bottom: 6px; }
.pain p { color: var(--muted); margin: 0; }
.quote { font-size: clamp(1.35rem, 2.6vw, 2rem); font-weight: 800; line-height: 1.5; max-width: 30em; }
.quote em { font-style: normal; color: var(--orange); }
.hero-service { min-height: min(94svh, 920px); align-items: center; }
.hero-service::before {
  background: linear-gradient(90deg, rgba(9, 9, 11, 0.92) 0%, rgba(9, 9, 11, 0.6) 42%, rgba(9, 9, 11, 0.05) 78%),
              linear-gradient(0deg, var(--bg) 0%, transparent 28%);
}
.hero-service .display { font-size: clamp(2.6rem, 6vw, 5.2rem); }
.section-quote { padding: calc(var(--section) * 0.75) 0; border-block: 1px solid var(--line); background: radial-gradient(900px 300px at 10% 50%, rgba(239, 68, 68, 0.1), transparent 70%); }
/* 橫式畫面文字收在左側 56%，右側留給 3D 建築；直式畫面文字放下方，建築在上方 */
@media (min-width: 768px) and (orientation: landscape) { .hero-service .hero-content { max-width: min(900px, 56vw); } }
@media (max-width: 767px), (orientation: portrait) and (max-width: 1180px) {
  .hero-service { align-items: end; }
  .hero-service::before { background: linear-gradient(0deg, rgba(9, 9, 11, 0.96) 30%, rgba(9, 9, 11, 0.4) 70%, rgba(9, 9, 11, 0.2) 100%); }
}
/* 手機文字較長：主視覺上方留 44% 畫面高給 3D 建築，文字從下方開始，不壓在建築上 */
@media (max-width: 767px) {
  .hero-service { min-height: auto; padding-top: 44svh; }
  .hero-service::before { background: linear-gradient(0deg, rgba(9, 9, 11, 0.94) 0%, rgba(9, 9, 11, 0.86) calc(100% - 50svh), rgba(9, 9, 11, 0.1) calc(100% - 36svh)); }
}
/* 描述型標題較長，縮小字級讓它在語意處換行 */
.chapter-card .h2 { font-size: clamp(1.5rem, 2.1vw, 1.95rem); line-height: 1.35; word-break: keep-all; }
.hero-home .display { font-size: clamp(2.3rem, 4.6vw, 4.3rem); }
.hero-home .hero-content { max-width: 980px; }
.hero-service .display { font-size: clamp(2.2rem, 4.2vw, 3.9rem); }
.hero-service .display .split-line:nth-child(2) { font-size: 0.72em; margin-top: 0.15em; }
.h2 { word-break: keep-all; }
@media (max-width: 480px) { .h2, .chapter-card .h2 { word-break: normal; } }

/* 閱讀節奏：sticky 只延長自然捲動距離，不攔截 wheel／touch／鍵盤。 */
.chapter {
  position: relative; display: block; padding: var(--chapter-arrival, 24vh) 0 0;
  min-height: 0; height: var(--chapter-height, auto);
}
.chapter > .container { position: relative; }
.chapter.has-reading-hold > .container { position: sticky; top: var(--reading-top); }
.chapter-card {
  position: relative; max-width: 540px; padding: clamp(24px, 3.4vw, 40px); border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(15, 15, 18, 0.94), rgba(9, 9, 11, 0.92));
  border: 1px solid var(--line); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  display: grid; gap: 16px;
}
.chapter-card .eyebrow { margin: 0; }
.chapter-index { display: flex; align-items: center; gap: 12px; margin: 0; font-family: var(--mono); font-size: 0.8rem; color: var(--dim); letter-spacing: 0.1em; }
.chapter-index b { color: var(--orange); font-weight: 600; }
.badge { font-family: var(--font); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.04em; padding: 3px 10px; border-radius: 999px; background: var(--ember); color: #fff; }
.chapter-card .lead { font-size: 1.06rem; margin: 0; }
.chapter-points { display: grid; gap: 8px; color: var(--muted); font-size: 0.97rem; }
.chapter-points li { display: flex; gap: 10px; align-items: baseline; }
.chapter-points li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); transform: translateY(-2px); }
.chapter-card .link-arrow { min-height: 44px; }
/* sticky 位置不與 reveal 的位移競爭，正文到達閱讀區時維持穩定。 */
.js .chapter-card[data-reveal] { transform: none; transition-duration: 0.35s; }
.chapter-rail {
  position: fixed; right: clamp(16px, 2.4vw, 36px); top: 50%; z-index: 30; transform: translateY(-50%);
  display: none; flex-direction: column; gap: 0; opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.25s, visibility 0.25s;
}
.chapter-rail.is-on { opacity: 1; visibility: visible; pointer-events: auto; }
.chapter-rail a { min-height: 44px; display: flex; align-items: center; justify-content: flex-end; gap: 12px; font-size: 0.8rem; color: var(--dim); }
.chapter-rail a span { opacity: 0; transform: translateX(6px); transition: opacity 0.2s, transform 0.2s; white-space: nowrap; }
.chapter-rail a::after { content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--line-strong); transition: width 0.25s, background-color 0.25s; }
.chapter-rail a:hover span, .chapter-rail a:focus-visible span, .chapter-rail a[aria-current] span { opacity: 1; transform: none; }
.chapter-rail a[aria-current] { color: var(--text); }
.chapter-rail a[aria-current]::after { width: 40px; background: var(--ember); }
.chapter-switcher {
  position: fixed; top: 76px; left: 0; right: 0; z-index: 35; height: 56px;
  display: flex; align-items: center; gap: 12px; padding: 0 var(--gutter);
  background: rgba(9, 9, 11, 0.96); border-bottom: 1px solid var(--line-strong);
}
.chapter-switcher[hidden] { display: none; }
.chapter-switcher label, .page-contents label { flex: none; font-size: 0.85rem; color: var(--muted); }
.chapter-switcher select, .page-contents select {
  min-width: 0; width: 100%; min-height: 44px; padding: 8px 12px;
  font: inherit; font-size: 0.94rem; font-weight: 400; color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 8px; background: var(--bg-1);
}
@media (max-width: 767px) {
  .chapter-card { padding: 22px; gap: 12px; background: rgba(9, 9, 11, 0.96); }
  .chapter-points { font-size: 0.94rem; gap: 6px; }
  .chapter-card .lead { font-size: 1rem; }
}
@media (min-width: 1100px) {
  .chapter-rail { display: flex; }
  .chapter-switcher { display: none; }
}
.menu-open .chapter-switcher { visibility: hidden; }
.page-contents {
  position: sticky; top: 76px; z-index: 25; border-block: 1px solid var(--line-strong); background: rgba(9, 9, 11, 0.97);
}
.page-contents-inner { min-height: 64px; display: flex; align-items: center; gap: 20px; padding-block: 8px; }
.contents-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; }
.contents-links a { display: inline-flex; align-items: center; min-height: 44px; font-size: 0.94rem; color: var(--muted); border-bottom: 2px solid transparent; }
.contents-links a:hover, .contents-links a[aria-current] { color: var(--text); border-bottom-color: var(--orange); }
.page-contents select { display: none; }
html:has([data-page-contents]) { scroll-padding-top: calc(96px + var(--contents-height, 64px)); }
@media (max-width: 959px) {
  .page-contents-inner { min-height: 64px; gap: 12px; }
  .js .contents-links { display: none; }
  .js .page-contents select { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  .chapter.has-reading-hold > .container { position: relative; }
  .chapter-rail, .chapter-rail a span, .chapter-rail a::after { transition: none; }
}