/* ===== Duo-Shou landing ===== */
:root {
  --brand: #FF6B47;
  --brand-deep: #E04A26;
  --sun: #FFD23F;
  --gain: #1FA86B;
  --loss: #E04A3A;
  --line-green: #06C755;
  --ink: #1A1612;
  --ink-2: #5A4F45;
  --ink-3: #8C8073;
  --bg: #FFFBF5;
  --tint: #FFF4E6;
  --surface: #FFFFFF;
  --hair: #EFE6D6;
  --shadow-sm: 0 1px 3px rgba(26, 22, 18, .06), 0 4px 14px rgba(26, 22, 18, .05);
  --shadow-lg: 0 18px 50px rgba(26, 22, 18, .16);
  --r: 14px;
  --r-lg: 22px;
  --max: 1120px;
  /* 中文(繁)主字體;Noto Sans JP 供日文 kana 正確字形,系統字體墊底 */
  --font: "Noto Sans TC", "Noto Sans JP", "PingFang TC", "Hiragino Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

/* 日文版改以 Noto Sans JP 為首(かな 字形更道地);app.js 會設 html[lang] */
html[lang="ja-JP"] {
  --font: "Noto Sans JP", "Noto Sans TC", "Hiragino Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0
}

html {
  scroll-behavior: smooth
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 已載入所有用到的字重(400/600/700/800)→ 關閉假粗體合成,粗細一律用真實字重,避免忽輕忽重 */
  font-synthesis: none
}

a {
  color: inherit;
  text-decoration: none
}

h1,
h2,
h3,
h4 {
  line-height: 1.18;
  letter-spacing: -.01em
}

section {
  padding: 0 20px
}

.accent {
  color: var(--brand)
}

.gain {
  color: var(--gain)
}

.loss {
  color: var(--loss)
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: 999px;
  padding: 13px 22px;
  font-size: 15px;
  cursor: pointer;
  border: none;
  transition: .18s;
  white-space: nowrap
}

.btn:hover {
  transform: translateY(-1px)
}

.btn-line {
  background: var(--line-green);
  color: #fff;
  box-shadow: 0 6px 18px rgba(6, 199, 85, .32)
}

.btn-line::before {
  content: "LINE";
  font-size: 11px;
  font-weight: 800;
  background: rgba(255, 255, 255, .22);
  padding: 2px 6px;
  border-radius: 5px
}

.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid var(--hair)
}

.btn-outline {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--ink)
}

.btn-sm {
  padding: 9px 16px;
  font-size: 14px
}

.btn-lg {
  padding: 16px 30px;
  font-size: 17px
}

.block {
  display: flex;
  width: 100%
}

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px max(20px, calc((100% - var(--max))/2));
  background: rgba(255, 251, 245, .86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hair)
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800
}

/* Logo 圖檔（全部用淺色版:白底深 mark,各種背景上都清晰） */
.brand-mark{width:30px;height:30px;border-radius:8px;display:block;flex-shrink:0;object-fit:contain;
  box-shadow:0 0 0 1px rgba(0,0,0,.06)}   /* 淺底上加細毛邊,避免白 logo 邊緣消融 */
.foot-brand .brand-mark{width:36px;height:36px;border-radius:9px;box-shadow:none}

.brand-name {
  font-size: 16px
}

.brand-sub {
  color: var(--ink-3);
  font-weight: 600;
  font-size: 13px
}

.nav-links {
  display: flex;
  gap: 22px;
  margin-left: 8px
}

.nav-links a {
  color: var(--ink-2);
  font-weight: 600;
  font-size: 14px
}

.nav-links a:hover {
  color: var(--brand)
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto
}

.lang {
  display: flex;
  border: 1px solid var(--hair);
  border-radius: 999px;
  overflow: hidden;
  background: #fff
}

.lang-btn {
  border: none;
  background: none;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-3);
  cursor: pointer
}

.lang-btn.active {
  background: var(--ink);
  color: #fff
}

/* hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 54px 20px 30px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-deep);
  background: #FFE9E0;
  padding: 6px 13px;
  border-radius: 999px;
  margin-bottom: 18px
}

.hero h1 {
  font-size: clamp(34px, 5.6vw, 58px);
  font-weight: 800
}

.lead {
  font-size: clamp(16px, 2.1vw, 19px);
  color: var(--ink-2);
  margin: 18px 0 26px;
  max-width: 30em
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap
}

.microtrust {
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--ink-3)
}

/* hero visual / phone */
.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 440px
}

.phone {
  position: relative;
  width: 266px;
  height: 540px;
  background: #0E0B09;
  border-radius: 42px;
  padding: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  flex-shrink: 0
}

.vcard {
  overflow-wrap: break-word;
  word-break: keep-all
}

.vcard-price b {
  white-space: nowrap
}

.vcard-name {
  white-space: normal
}

/* Dynamic Island（現代 iPhone 風格的膠囊,不是凸出的瀏海） */
.phone-notch {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 88px;
  height: 25px;
  background: #0E0B09;
  border-radius: 999px;
  z-index: 5;
  box-shadow: inset 0 0 0 1px #000
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #D7E5D2;
  border-radius: 32px;
  overflow: hidden;
  display: flex;
  flex-direction: column
}

/* ── LINE 對話 mockup（hero） ─────────────────────────── */
.chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  font-size: 11px;
  line-height: 1.4;
  background: #fff4e7
}

/* 狀態列融進綠色 header（同一條綠帶,Dynamic Island 居中浮在上方） */
.chat-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  padding: 0 16px;
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  background: var(--line-green)
}

.chat-status .cs-r {
  display: inline-flex;
  align-items: center;
  gap: 4px
}

.chat-status .cs-sig {
  display: inline-block;
  width: 13px;
  height: 8px;
  background: linear-gradient(90deg, #fff 0 2px, transparent 2px 4px, #fff 4px 6px, transparent 6px 8px, #fff 8px 10px, transparent 10px 12px, #fff 12px 13px) center/100% 100% no-repeat;
  /* 簡單的 3 段訊號條 */
  background: none;
  position: relative
}

.chat-status .cs-sig::before,
.chat-status .cs-sig::after,
.chat-status .cs-sig i {
  content: "";
  display: inline-block;
  width: 2px;
  background: #fff;
  border-radius: 1px;
  margin-right: 1.5px;
  vertical-align: bottom
}

.chat-status .cs-sig::before {
  height: 4px
}

.chat-status .cs-sig i {
  height: 6px
}

.chat-status .cs-sig::after {
  height: 8px;
  margin-right: 0
}

.chat-status .cs-bat {
  display: inline-block;
  width: 18px;
  height: 9px;
  border: 1px solid #fff;
  border-radius: 2px;
  position: relative;
  padding: 1px
}

.chat-status .cs-bat::after {
  content: "";
  position: absolute;
  right: -3px;
  top: 2px;
  width: 2px;
  height: 3px;
  background: #fff;
  border-radius: 0 1px 1px 0
}

.chat-status .cs-bat i {
  display: block;
  width: 100%;
  height: 100%;
  background: #fff;
  border-radius: 1px
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 4px 12px 9px;
  background: var(--line-green);
  color: #fff
}

.chat-back {
  font-size: 18px;
  font-weight: 700;
  opacity: .95
}

/* 對話 header 內的 bot logo（淺色版,白底在綠標頭上自然顯眼） */
.chat-avatar{width:28px;height:28px;border-radius:7px;display:block;flex-shrink:0;object-fit:contain}

.chat-title {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0
}

.chat-title b {
  font-size: 13px
}

.chat-title span {
  font-size: 10px;
  opacity: .88
}

.chat-body {
  flex: 1;
  padding: 7px 8px 4px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  overflow: hidden;
  min-height: 0
}

.msg {
  display: flex;
  gap: 5px;
  align-items: flex-end
}

.msg-ava {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 9.5px;
  flex-shrink: 0
}

.bubble {
  background: #fff;
  border-radius: 12px;
  padding: 5px 9px;
  max-width: 80%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .06);
  color: var(--ink);
  font-size: 10.5px;
  line-height: 1.4
}

.bubble-sub {
  margin-top: 2px;
  color: var(--ink-3);
  font-size: 9.5px
}

.bubble-dark {
  background: #1A1612;
  color: #fff
}

.bubble-dark .bubble-sub {
  color: #B8AC9C
}

/* 估值卡（聊天訊息形式）— 加寬、字級縮一階、各行保持單行不破 */
.msg-card {
  background: #fff;
  border-radius: 13px;
  overflow: hidden;
  width: 88%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .08)
}

.card-top {
  background: linear-gradient(135deg, #FFE9DD, #FFF6E4);
  padding: 7px 9px;
  display: flex;
  gap: 8px;
  align-items: center
}

.card-thumb {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
  flex-shrink: 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .08)
}

.card-head {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2
}

.card-conf {
  font-size: 8.5px;
  color: var(--brand-deep);
  font-weight: 800
}

.card-name {
  font-size: 13px;
  margin-top: 1px;
  white-space: nowrap
}

.card-spec {
  font-size: 9px;
  color: var(--ink-3);
  white-space: nowrap
}

.card-body {
  padding: 7px 10px 9px
}

.card-fairlbl {
  font-size: 9px;
  color: var(--ink-3)
}

.card-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 1px 0 5px;
  flex-wrap: nowrap
}

.card-price b {
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap
}

.card-price span {
  color: var(--ink-3);
  font-size: 10.5px;
  white-space: nowrap
}

.card-bar {
  height: 4px;
  background: #F1E8D8;
  border-radius: 3px;
  margin: 2px 0 7px;
  position: relative
}

.card-bar i {
  display: block;
  height: 100%;
  width: 46%;
  background: linear-gradient(90deg, var(--brand), var(--sun));
  border-radius: 3px
}

.card-bar::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 46%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 2px var(--brand)
}

.card-stats {
  display: flex;
  gap: 8px;
  font-size: 8.5px;
  color: var(--ink-3);
  margin-bottom: 5px
}

.card-stats>div {
  flex: 1;
  min-width: 0
}

.card-stats b {
  display: block;
  font-size: 10px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis
}

.pill-a {
  display: inline-block;
  background: var(--gain);
  color: #fff;
  padding: 0 5px;
  border-radius: 999px;
  font-size: 9px;
  font-weight: 800;
  font-style: normal;
  margin-right: 2px;
  line-height: 1.4
}

.card-advice {
  background: #FFF7E2;
  border: 1px solid #F6E5B3;
  border-radius: 7px;
  padding: 5px 7px;
  font-size: 9.5px;
  line-height: 1.45;
  color: #5A4A1F
}

.card-advice b {
  color: #7A5800;
  font-weight: 800
}

/* quick replies */
.qr-row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  padding-left: 25px;
  margin-top: 0
}

.qr {
  font-size: 9.5px;
  background: #fff;
  border: 1px solid #D6DECF;
  color: var(--ink);
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
  line-height: 1.4
}

/* LINE 風格輸入列 */
.chat-input {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  background: #F4F2EE;
  border-top: 1px solid #DCD8D1
}

.ci-plus {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  color: #7B7B7B;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid #DCD8D1
}

.ci-field {
  flex: 1;
  background: #fff;
  border: 1px solid #DCD8D1;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 10px;
  color: var(--ink-3)
}

.ci-cam {
  font-size: 13px;
  color: #7B7B7B
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
  z-index: 1
}

.blob-1 {
  width: 230px;
  height: 230px;
  background: radial-gradient(circle, rgba(255, 107, 71, .42), transparent 68%);
  top: -10px;
  right: 0
}

.blob-2 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 210, 63, .5), transparent 68%);
  bottom: 0;
  left: -10px
}

/* strip */
.strip {
  max-width: var(--max);
  margin: 14px auto 8px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px
}

.strip-item {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  padding: 18px;
  text-align: center;
  box-shadow: var(--shadow-sm)
}

.strip-item b {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--brand)
}

.strip-item span {
  font-size: 13px;
  color: var(--ink-2)
}

/* sections */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 20px
}

.section-tint {
  max-width: none;
  background: var(--tint);
  border-block: 1px solid var(--hair)
}

.section-tint>* {
  max-width: var(--max);
  margin-inline: auto
}

.section-head {
  text-align: center;
  max-width: 46em;
  margin: 0 auto 38px
}

.eyebrow {
  font-size: 13px;
  font-weight: 800;
  color: var(--brand);
  letter-spacing: .08em;
  text-transform: uppercase
}

.section-head h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800;
  margin: 10px 0
}

.section-head p {
  color: var(--ink-2);
  font-size: 16px
}

/* feature cards */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px
}

.card {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: .2s
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg)
}

.card-ico {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 25px;
  margin-bottom: 14px
}

.ico-orange {
  background: #FFE9E0
}

.ico-red {
  background: #FCE2DE
}

.ico-green {
  background: #DEF3E9
}

.ico-gold {
  background: #FFF2CC
}

.card h3 {
  font-size: 19px;
  margin-bottom: 8px
}

.card p {
  color: var(--ink-2);
  font-size: 14.5px
}

/* steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px
}

.step {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm)
}

.step-n {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--sun);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 17px;
  margin-bottom: 14px
}

.step h4 {
  font-size: 17px;
  margin-bottom: 6px
}

.step p {
  color: var(--ink-2);
  font-size: 14px
}

/* why grid */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px
}

.why {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  padding: 22px;
  box-shadow: var(--shadow-sm)
}

.why b {
  display: block;
  font-size: 16px;
  margin-bottom: 7px
}

.why p {
  color: var(--ink-2);
  font-size: 14px
}

/* pricing */
.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 320px));
  gap: 22px;
  justify-content: center
}

.plan {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: relative
}

.plan-pro {
  border: 2px solid var(--brand);
  background: linear-gradient(180deg, #fff, #FFF6E4)
}

.plan-ribbon {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--brand);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 11px;
  border-radius: 7px;
  white-space: nowrap
}

.plan-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-2)
}

.plan-price {
  margin: 8px 0
}

.plan-price b {
  font-size: 40px;
  font-weight: 800
}

.plan-price span {
  color: var(--ink-3);
  font-size: 15px;
  margin-left: 3px
}

.plan-note {
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 14px
}

.plan ul {
  list-style: none;
  margin: 14px 0 20px;
  display: flex;
  flex-direction: column;
  gap: 9px
}

.plan li {
  font-size: 14px;
  color: var(--ink-2)
}

.plan li.muted {
  color: var(--ink-3);
  opacity: .7
}

/* cta */
.cta {
  background: var(--ink);
  color: #fff;
  padding: 64px 20px;
  margin-top: 10px
}

.cta-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center
}

.cta h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800
}

.cta-sub,
.cta p {
  color: #D8CCB4;
  margin: 14px 0 26px;
  font-size: 16px
}

.cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  flex-wrap: wrap
}

.cta-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: #B8AC9C
}

.cta-qr img {
  background: #fff;
  border-radius: 12px;
  padding: 7px;
  display: block
}

/* footer */
.footer {
  background: #120F0C;
  color: #B8AC9C;
  padding: 42px 20px 30px;
  font-size: 13px
}

.foot-top {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .08)
}

.foot-brand {
  display: flex;
  gap: 12px;
  align-items: center
}

.foot-brand .brand-name {
  color: #fff
}

.foot-tag {
  margin-top: 3px;
  font-size: 12.5px
}

.foot-links {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap
}

.foot-links a:hover {
  color: var(--sun)
}

.disclaimer {
  max-width: var(--max);
  margin: 18px auto 0;
  font-size: 11.5px;
  line-height: 1.7;
  color: #7A6F62
}

.copyright {
  max-width: var(--max);
  margin: 14px auto 0;
  font-size: 12px;
  color: #5C534A
}

/* reveal animation — 只有在 JS 開啟時才先隱藏(避免無 JS 時整頁空白) */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease
}

.js .reveal.in {
  opacity: 1;
  transform: none
}

/* ░░ ABOUT PAGE ░░ */
.nav-links a.active{color:var(--brand)}
.about-hero{max-width:860px;margin:0 auto;padding:64px 20px 40px;text-align:center}
.about-hero h1{font-size:clamp(30px,5vw,48px);font-weight:800;margin:14px 0}
.about-hero .lead{color:var(--ink-2);font-size:clamp(15px,2vw,18px);max-width:38em;margin:0 auto}
.story{max-width:720px;margin:0 auto}
.story p{font-size:16px;line-height:1.85;color:var(--ink-2);margin-bottom:18px}
.story p:last-child{margin-bottom:0}
.founder{max-width:820px;margin:0 auto;display:flex;gap:30px;align-items:flex-start;background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-sm)}
.founder-mark{flex-shrink:0}
.founder-mark img{border-radius:18px;display:block;box-shadow:var(--shadow-sm)}
.founder-body{flex:1;min-width:0}
.founder-body h3{font-size:24px;margin-bottom:4px}
.founder-role{color:var(--ink-3);font-size:13px;font-weight:600;margin-bottom:14px}
.founder-body p{color:var(--ink-2);line-height:1.7;margin-bottom:14px;font-size:15px}
.founder-bullets{list-style:none;margin:14px 0;display:flex;flex-direction:column;gap:9px}
.founder-bullets li{color:var(--ink-2);font-size:14.5px;line-height:1.6}
.founder-note{color:var(--ink-3);font-size:13px;font-style:italic;margin-top:14px}
.rules{max-width:920px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.rule{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);padding:18px 18px 16px;box-shadow:var(--shadow-sm);position:relative}
.rule-n{position:absolute;top:14px;right:14px;width:26px;height:26px;border-radius:50%;background:var(--ink);color:var(--sun);display:grid;place-items:center;font-weight:800;font-size:12px}
.rule b{display:block;font-size:15px;margin-bottom:5px;padding-right:30px}
.rule p{color:var(--ink-2);font-size:13.5px;line-height:1.6}

@media (max-width:680px){
  .founder{flex-direction:column;text-align:left;gap:18px;padding:22px}
  .founder-mark img{width:72px;height:72px}
  .rules{grid-template-columns:1fr}
}

/* hero mockup card：信心分級（exact）— 標籤列 + 約X明確數字 + 區間小字 */
.card-fairlbl {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px
}

.card-tier {
  font-style: normal;
  font-size: 8px;
  font-weight: 800;
  color: var(--brand-deep);
  background: #FFE9E0;
  padding: 1px 5px;
  border-radius: 999px;
  white-space: nowrap
}

.card-approx {
  color: var(--ink-3);
  font-size: 11px;
  font-weight: 700;
  margin-right: 1px
}

.card-range {
  font-size: 9px;
  color: var(--ink-3);
  margin: 1px 0 5px
}

/* ░░ 信心分級展示區 ░░ */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px
}

.tier-card {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--hair);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: .2s
}

.tier-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg)
}

.tier-exact {
  border-top-color: var(--gain)
}

.tier-range {
  border-top-color: var(--sun)
}

.tier-unknown {
  border-top-color: var(--ink-3)
}

.tier-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 14px
}

.tier-exact .tier-tag {
  background: #DEF3E9;
  color: #0F7A4D
}

.tier-range .tier-tag {
  background: #FFF2CC;
  color: #7A5800
}

.tier-unknown .tier-tag {
  background: #EFE9E0;
  color: var(--ink-2)
}

.tier-demo {
  background: var(--tint);
  border: 1px solid var(--hair);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 16px
}

.tier-demo-unknown {
  background: #F7F3EC
}

.tier-demo-lbl {
  font-size: 12px;
  color: var(--ink-3);
  display: block
}

.tier-demo-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 4px 0 2px;
  flex-wrap: wrap
}

.tier-demo-price em {
  font-style: normal;
  color: var(--ink-3);
  font-size: 15px;
  font-weight: 700
}

.tier-demo-price b {
  font-size: 26px;
  font-weight: 800;
  color: var(--ink)
}

.tier-demo-none {
  font-size: 16px;
  font-weight: 800;
  color: var(--ink-2)
}

.tier-demo-sub {
  font-size: 11.5px;
  color: var(--ink-3)
}

.tier-card h3 {
  font-size: 17px;
  margin-bottom: 7px
}

.tier-card>p {
  color: var(--ink-2);
  font-size: 14px
}

/* ░░ FAQ accordion（純 <details>，無 JS 也可用）░░ */
.faq {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  box-shadow: var(--shadow-sm);
  overflow: hidden
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 18px;
  font-weight: 700;
  font-size: 15.5px;
  color: var(--ink);
  position: relative
}

.faq-item summary::-webkit-details-marker {
  display: none
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 21px;
  font-weight: 700;
  color: var(--brand);
  transition: transform .2s
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg)
}

.faq-item summary:hover {
  color: var(--brand)
}

.faq-item p {
  padding: 0 18px 16px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.7
}

/* ░░ 信任訊號帶 ░░ */
.trustbar-wrap {
  background: var(--tint);
  border-block: 1px solid var(--hair);
  padding: 18px 20px
}

.trustbar {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 26px
}

.tb-item {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-2);
  white-space: nowrap
}

/* responsive */
@media (max-width:880px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 34px
  }

  .hero-visual {
    order: -1;
    min-height: auto;
    margin-bottom: 6px
  }

  /* 手機 mockup 在小螢幕按比例縮放,給卡片內文夠寬不會擠到斷詞 */
  .phone {
    width: min(84vw, 300px);
    height: auto;
    aspect-ratio: 266/540
  }

  .cards,
  .why-grid,
  .steps,
  .tiers {
    grid-template-columns: 1fr
  }

  .strip {
    grid-template-columns: repeat(2, 1fr)
  }

  .plans {
    grid-template-columns: 1fr
  }

  .nav-links {
    display: none
  }
}

@media (max-width:420px) {
  .hero h1 {
    font-size: 32px
  }

  .btn {
    padding: 12px 18px;
    font-size: 14px
  }

  /* 超窄螢幕(<420px)再縮一點卡片字級,確保價格/型號名一行不破 */
  .vcard-name {
    font-size: 18px
  }

  .vcard-price b {
    font-size: 24px
  }
}

@media (prefers-reduced-motion:reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none
  }

  .btn:hover {
    transform: none
  }
}
/* a11y:鍵盤焦點環 + 觸控目標 */
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.lang-btn{min-height:44px}

/* 創辦人聯絡連結 */
.founder-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.founder-links a{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--ink-2);text-decoration:none;padding:7px 13px;border:1px solid var(--hair);border-radius:999px;background:var(--surface);transition:all .15s;min-height:40px}
.founder-links a:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.founder-links svg{flex-shrink:0}

/* Enterprise 方案卡 */
.plan-ent{border-color:#1FA86B}
.plan-ent .plan-name{color:#0E7A4B}