/* =========================================================
   homewifihk.com — v2「清」視覺系統
   黑白灰為主，一個行動色（WhatsApp 綠）。無漸變、無格線背景。
   大留白、大字、少框線、圓角卡片。
   ========================================================= */

:root {
  --ink: #1f1b16;
  --ink-2: #463f37;
  --muted: #857a6d;
  --muted-2: #a3927f;
  --muted-3: #8c7f70;
  --line: #e8e1d5;
  --line-strong: #d5caba;
  --surface: #f4ecdd;
  --surface-2: #fbf5e9;
  --paper: #fffcf7;
  --card: #fffdf9;
  --white: #ffffff;
  --track: #eae2d4;
  --track-strong: #cfc5b5;
  --hover: #efe7d9;
  --action: #15854c;
  --action-dark: #0f6b3c;
  --danger: #c0392b;

  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "Inter",
    "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", "Hiragino Sans", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --wrap: 1120px;
  --r-sm: 12px;
  --r: 18px;
  --r-lg: 28px;
  --pill: 980px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
}

::selection {
  background: var(--ink);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 8px 0;
}
.skip:focus {
  left: 0;
  top: 0;
}

.wrap {
  width: min(var(--wrap), calc(100% - 48px));
  margin-inline: auto;
}

/* ---------- type ---------- */

h1,
h2,
h3,
h4 {
  text-wrap: balance;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

p {
  margin: 0 0 1em;
}

.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin: 0 0 20px;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--action);
  flex: 0 0 6px;
}

.lede {
  text-wrap: pretty;
  font-size: 19px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 40ch;
  margin-inline: auto;
}

.mark {
  background: none;
  padding: 0;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  background: var(--surface);
  color: var(--ink);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease, color 0.18s ease;
}
.btn:hover {
  background: var(--hover);
}
.btn:active {
  transform: scale(0.985);
}

.btn--wa,
.btn--primary {
  background: var(--action);
  color: #fff;
}
.btn--wa:hover,
.btn--primary:hover {
  background: var(--action-dark);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn--ghost:hover {
  background: var(--surface);
  border-color: var(--line-strong);
}

.btn--ink {
  background: var(--ink);
  color: #fff;
}
.btn--ink:hover {
  background: #000;
}

.btn--lg {
  min-height: 54px;
  padding: 0 32px;
  font-size: 17px;
}

.btn--sm {
  min-height: 38px;
  padding: 0 18px;
  font-size: 14px;
}

.btn__ico {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
}

/* 文字連結 */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}
.link-arrow::after {
  content: "›";
  font-size: 20px;
  line-height: 1;
  transition: transform 0.18s ease;
}
.link-arrow:hover::after {
  transform: translateX(3px);
}

/* ---------- header ---------- */

.topbar {
  display: none;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 252, 247, 0.88);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.site-head__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 60px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--ink);
  flex: 0 0 auto;
}
.brand__mark {
  width: 27px;
  height: 27px;
  flex: 0 0 27px;
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand__name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.brand__hk {
  color: var(--ink);
}
.brand__tag {
  display: none;
}

.nav {
  display: flex;
  gap: 30px;
  margin-left: auto;
}
.nav a {
  font-size: 14px;
  font-weight: 400;
  color: var(--ink);
  text-decoration: none;
  padding: 4px 0;
  white-space: nowrap;
  opacity: 0.86;
  transition: opacity 0.15s ease;
}
.nav a:hover {
  opacity: 1;
}
.nav a.is-active {
  font-weight: 600;
  opacity: 1;
}

.site-head__act {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 36px;
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.18s ease, top 0.18s ease;
}
.nav-toggle span:nth-child(1) {
  top: 14px;
}
.nav-toggle span:nth-child(2) {
  top: 20px;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 17px;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  top: 17px;
  transform: rotate(-45deg);
}

/* ---------- hero（置中）---------- */

.hero {
  padding: 96px 0 0;
  text-align: center;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}
.hero__inner {
  max-width: 900px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 0 0 22px;
}
.hero .lede {
  font-size: clamp(17px, 1.6vw, 21px);
  max-width: none;
  margin-bottom: 0;
  color: var(--ink-2);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 34px 0 0;
}
.hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
  font-size: 13px;
  color: var(--muted);
}
.hero__meta li {
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero__meta li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line-strong);
}

.hero__visual {
  margin: 64px auto -1px;
  max-width: 960px;
  padding: 0 24px;
}

/* ---------- 讀數卡 ---------- */

.readout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  border-bottom: 0;
  box-shadow: 0 24px 60px -24px rgba(64, 44, 24, 0.13);
  overflow: hidden;
  text-align: left;
}
.readout__bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.readout__bar strong {
  color: var(--ink);
  font-weight: 600;
}
.readout__rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.readout__rows li {
  padding: 26px 28px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.readout__rows li:last-child {
  border-right: 0;
}
.r-label {
  font-size: 13px;
  color: var(--muted);
}
.r-val {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.bar {
  height: 4px;
  border-radius: 4px;
  background: var(--track);
  overflow: hidden;
  margin-top: auto;
}
.bar i {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: var(--ink);
}
.bar i.is-good {
  background: var(--action);
}
.bar i.is-bad {
  background: var(--danger);
}
.readout__note {
  margin: 0;
  padding: 20px 28px 24px;
  border-top: 1px solid var(--line);
  background: var(--surface-2);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-2);
}
.readout__note b {
  color: var(--ink);
}
.readout__note small {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 大數字帶 ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.stat {
  padding: 40px 24px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.stat:last-child {
  border-right: 0;
}
.stat__v {
  display: block;
  font-size: clamp(25px, 2.4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.stat__k {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- sections ---------- */

.section {
  padding: 116px 0;
}
.section--white {
  background: var(--paper);
}
.section--soft {
  background: var(--surface);
}
.section--ink {
  background: var(--ink);
  color: #fff;
}
.section--ink .sec-title,
.section--ink h2,
.section--ink h3 {
  color: #fff;
}
.section--ink .sec-note,
.section--ink p {
  color: var(--muted-2);
}
.section--ink .sec-num {
  color: var(--muted-3);
}
.section--tight {
  padding: 72px 0;
}

.sec-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.sec-num {
  display: block;
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.sec-num span {
  display: none;
}
.sec-title {
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 0 0 14px;
}
.sec-note {
  text-wrap: pretty;
  font-size: 17px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 auto;
  max-width: 52ch;
}

/* ---------- 症狀 ---------- */

.symptoms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.symptom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--r);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.16s ease, transform 0.16s ease;
}
.symptom:hover {
  background: var(--hover);
  transform: translateY(-1px);
}
.symptom__n {
  display: none;
}
.symptom__body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.symptom__t {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.symptom__t svg {
  width: 14px;
  height: 14px;
  opacity: 0.35;
  transition: transform 0.16s ease, opacity 0.16s ease;
}
.symptom:hover .symptom__t svg {
  opacity: 1;
  transform: translateX(2px);
}
.symptom__d {
  font-size: 14px;
  color: var(--muted);
}
.symptoms__hint {
  margin: 28px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 死因 / 清單 ---------- */

.causes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 56px;
}
.causes--3 {
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 40px;
}
.cause {
  padding: 0;
}
.cause__n {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 8px;
}
.cause h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.cause p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ---------- 步驟 ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  background: var(--surface);
  border-radius: var(--r);
  padding: 28px 26px 30px;
}
.step__n {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 26px;
}
.step h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------- 卡片 ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.cards--2 {
  grid-template-columns: repeat(2, 1fr);
}
.card {
  display: flex;
  flex-direction: column;
  padding: 28px 26px;
  border-radius: var(--r);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: background 0.16s ease, transform 0.16s ease;
}
.card:hover {
  background: var(--hover);
  transform: translateY(-1px);
}
.card__tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.card h3 {
  font-size: 19px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.card p {
  font-size: 15px;
  line-height: 1.62;
  color: var(--ink-2);
  margin: 0 0 22px;
}
.card__foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}
.card__price {
  font-family: var(--mono);
  font-weight: 600;
}

/* ---------- 價目表 ---------- */

.price-group {
  margin-bottom: 64px;
}
.price-group:last-child {
  margin-bottom: 0;
}
.price-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.price-group__head h3 {
  font-size: 17px;
  margin: 0;
}
.price-group__head p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}
.price-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.price-table th,
.price-table td {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.price-table th {
  font-weight: 400;
  padding-right: 32px;
}
.price-table__item {
  display: block;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.price-table__note {
  display: block;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 6px;
  max-width: 58ch;
}
.price-table__price {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
  padding-left: 24px;
}
tr.is-featured > th {
  padding-left: 16px;
  border-left: 2px solid var(--action);
}
.tag {
  display: inline-block;
  margin-left: 10px;
  padding: 1px 8px 2px;
  border-radius: 40px;
  background: var(--action);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
  vertical-align: 2px;
  white-space: nowrap;
}

/* ---------- 案例 ---------- */

.cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.case {
  background: var(--surface);
  border-radius: var(--r);
  padding: 32px;
  display: flex;
  flex-direction: column;
}
.case__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}
.case__where {
  font-size: 13px;
  color: var(--muted);
}
.case__price {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
}
.case h3 {
  font-size: 21px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.case p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-2);
  margin: 0 0 26px;
}
.case__stats {
  margin-top: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.kpi__v {
  display: block;
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.kpi__v.is-good {
  color: var(--action);
}
.kpi__k {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

/* ---------- 四個理由 ---------- */

.reasons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.reason {
  padding: 0;
}
.reason__n {
  display: none;
}
.reason h3 {
  font-size: 18px;
  margin: 0 0 8px;
}
.reason p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------- 地區 ---------- */

.areas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
}
.areas li {
  font-size: 13px;
  padding: 7px 14px;
  border-radius: var(--pill);
  background: var(--surface);
  color: var(--ink-2);
}
.areas a {
  text-decoration: none;
  color: inherit;
}
.areas a:hover {
  color: var(--ink);
}
.areas li.is-out {
  background: transparent;
  border: 1px dashed var(--line-strong);
  color: var(--muted);
}

/* ---------- FAQ ---------- */

.faq {
  max-width: 780px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}
.faq__item {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding: 24px 0;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  list-style: none;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq__sign {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  margin-top: 6px;
}
.faq__sign::before,
.faq__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
  background: var(--muted);
}
.faq__sign::after {
  transform: rotate(90deg);
  transition: transform 0.2s ease;
}
details[open] .faq__sign::after {
  transform: rotate(0deg);
}
.faq__body {
  padding: 0 0 26px;
}
.faq__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ---------- CTA ---------- */

.cta-band {
  background: #241e17;
  color: #fff;
  padding: 96px 0;
  text-align: center;
}
.cta-band__inner {
  display: block;
}
.cta-band h2 {
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -0.035em;
  margin: 0 0 14px;
  color: #fff;
}
.cta-band p {
  margin: 0 auto 32px;
  color: var(--muted-2);
  font-size: 18px;
  max-width: 46ch;
}
.cta-band__act {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.cta-band__small {
  margin: 0;
  font-size: 13px;
  color: var(--muted-3) !important;
}

/* ---------- 內頁 hero ---------- */

.page-hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.page-hero .crumbs {
  margin-bottom: 32px;
}
.crumbs {
  font-size: 13px;
  color: var(--muted);
}
.crumbs a {
  text-decoration: none;
}
.crumbs a:hover {
  color: var(--ink);
}
.crumbs span {
  margin: 0 8px;
  opacity: 0.5;
}
.page-hero h1 {
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 0 20px;
  max-width: 18ch;
}
.page-hero .lede {
  max-width: 50ch;
  margin-inline: 0;
  font-size: 19px;
  color: var(--ink-2);
}
.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--muted);
}
.page-hero__meta b {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- compare / split ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.panel {
  background: var(--surface);
  border-radius: var(--r);
  padding: 28px 30px;
}
.panel--ink {
  background: var(--ink);
  color: #fff;
}
.panel--ink h3,
.panel--ink p {
  color: #fff;
}
.panel h3 {
  font-size: 17px;
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel h3 .badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 40px;
  background: var(--ink);
  color: #fff;
}
.panel--yes h3 .badge {
  background: var(--action);
}
.panel--no h3 .badge {
  background: var(--danger);
}
.tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tick-list li {
  position: relative;
  padding: 11px 0 11px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
}
.tick-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.tick-list li::before {
  position: absolute;
  left: 0;
  top: 11px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.tick-list--yes li::before {
  content: "✓";
  color: var(--action);
}
.tick-list--no li::before {
  content: "✕";
  color: var(--danger);
  font-size: 13px;
}
.tick-list strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- timeline ---------- */

.timeline {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 760px;
}
.timeline li {
  position: relative;
  padding: 0 0 34px 28px;
  border-left: 1px solid var(--line);
}
.timeline li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
}
.timeline__t {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}
.timeline h3 {
  font-size: 18px;
  margin: 0 0 6px;
}
.timeline p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-2);
  max-width: 62ch;
}

/* ---------- 方案卡 ---------- */

.packages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}
.pkg {
  background: var(--surface);
  border-radius: var(--r);
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
}
.pkg--hero {
  background: var(--ink);
  color: #fff;
}
.pkg--hero h3,
.pkg--hero .pkg__price,
.pkg--hero .pkg__label,
.pkg--hero .pkg__sub,
.pkg--hero ul {
  color: #fff;
}
.pkg--hero .pkg__sub {
  border-bottom-color: rgba(255, 255, 255, 0.18);
}
.pkg--hero .btn--ghost {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}
.pkg__label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 14px;
}
.pkg__price {
  font-family: var(--mono);
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
}
.pkg__price small {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}
.pkg__sub {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.pkg ul {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  font-size: 15px;
  color: var(--ink-2);
}
.pkg ul li {
  padding: 6px 0;
}
.pkg .btn {
  margin-top: auto;
  width: 100%;
}

/* ---------- prose ---------- */

.prose {
  max-width: 70ch;
}
.prose h2 {
  font-size: 26px;
  margin: 48px 0 14px;
  letter-spacing: -0.02em;
}
.prose h3 {
  font-size: 19px;
  margin: 32px 0 10px;
}
.prose p,
.prose li {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}
.prose ul {
  padding-left: 20px;
}
.prose li {
  margin-bottom: 8px;
}
.prose strong {
  color: var(--ink);
}
.prose a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- footer ---------- */

.footer {
  background: #f3ecdf;
  color: var(--ink-2);
  padding: 64px 0 32px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.brand--footer {
  color: var(--ink);
}
.footer__desc {
  margin: 16px 0 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 34ch;
}
.footer__wa {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}
.footer__wa:hover {
  border-bottom-color: var(--ink);
}
.footer h3 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 4px 0 14px;
}
.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer li {
  margin-bottom: 10px;
}
.footer ul a {
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
}
.footer ul a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer__small {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 10px;
}
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  font-size: 12px;
  color: var(--muted);
}
.footer__bottom p {
  margin: 0;
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.footer__legal a {
  color: var(--muted);
  text-decoration: none;
}
.footer__legal a:hover {
  color: var(--ink);
}

/* ---------- sticky mobile ---------- */

.sticky-bar {
  display: none;
}

/* ---------- responsive ---------- */

@media (max-width: 1000px) {
  .hero {
    padding-top: 72px;
  }
  .readout__rows {
    grid-template-columns: repeat(2, 1fr);
  }
  .readout__rows li:nth-child(2) {
    border-right: 0;
  }
  .readout__rows li:nth-child(1),
  .readout__rows li:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }
  .symptoms,
  .cards,
  .packages {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .reasons {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 860px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 16px;
    margin: 0;
  }
  .nav.is-open {
    display: flex;
  }
  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }
  .nav a:last-child {
    border-bottom: 0;
  }
  .nav-toggle {
    display: block;
  }
  .site-head__act {
    margin-left: auto;
  }
}

@media (max-width: 760px) {
  body {
    padding-bottom: 76px;
    font-size: 16px;
  }
  .wrap {
    width: calc(100% - 40px);
  }
  .site-head__inner {
    min-height: 56px;
    gap: 12px;
  }
  .brand__mark {
    width: 24px;
    height: 24px;
    flex-basis: 24px;
  }
  .brand__name {
    font-size: 17px;
  }
  .site-head__act .btn--wa {
    display: none;
  }

  .hero {
    padding: 56px 0 0;
  }
  .hero h1 {
    font-size: clamp(32px, 9.2vw, 42px);
    line-height: 1.08;
  }
  .hero .lede {
    font-size: 17px;
    max-width: 30ch;
  }
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    margin-top: 28px;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .hero__meta {
    font-size: 12px;
  }
  .hero__visual {
    margin-top: 44px;
    padding: 0 20px;
  }
  .readout {
    border-radius: 20px 20px 0 0;
  }
  .readout__bar {
    padding: 14px 20px;
  }
  .readout__rows li {
    padding: 18px 20px;
  }
  .r-val {
    font-size: 19px;
  }
  .readout__note {
    padding: 16px 20px 20px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat {
    padding: 28px 16px;
  }
  .stat:nth-child(2) {
    border-right: 0;
  }
  .stat:nth-child(1),
  .stat:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }

  .section {
    padding: 64px 0;
  }
  .section--tight {
    padding: 48px 0;
  }
  .sec-head {
    margin-bottom: 36px;
    text-align: left;
  }
  .sec-title {
    font-size: 27px;
  }
  .sec-note {
    font-size: 15.5px;
    margin: 0;
  }

  .symptoms,
  .cards,
  .cards--2,
  .packages,
  .split,
  .cases {
    grid-template-columns: 1fr;
  }
  .symptom {
    padding: 18px 20px;
  }
  .causes {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .reasons {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .step {
    padding: 24px 22px;
  }
  .step__n {
    margin-bottom: 18px;
  }

  .price-table th,
  .price-table td {
    padding: 16px 0;
  }
  .price-table__item {
    font-size: 16px;
  }
  .price-table__price {
    font-size: 15px;
  }
  .price-group {
    margin-bottom: 40px;
  }

  .case {
    padding: 24px 22px;
  }
  .case__stats {
    gap: 8px;
  }

  .cta-band {
    padding: 64px 0;
  }
  .cta-band p {
    font-size: 16px;
  }
  .cta-band__act .btn {
    width: 100%;
  }

  .page-hero {
    padding: 40px 0 44px;
  }
  .page-hero .crumbs {
    margin-bottom: 24px;
  }
  .page-hero h1 {
    max-width: none;
    font-size: clamp(30px, 8.4vw, 38px);
  }
  .page-hero .lede {
    font-size: 17px;
  }
  .page-hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-hero__actions .btn {
    width: 100%;
  }

  .faq summary {
    padding: 20px 0;
    font-size: 16px;
  }

  .footer {
    padding: 48px 0 24px;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 10px;
  }

  .sticky-bar {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    gap: 8px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 252, 247, 0.94);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--line);
  }
  .sticky-bar__cta {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    background: var(--action);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--pill);
  }
  .sticky-bar__cta svg {
    width: 18px;
    height: 18px;
  }
  .sticky-bar__price {
    display: flex;
    align-items: center;
    padding: 0 16px;
    border: 1px solid var(--line-strong);
    border-radius: var(--pill);
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    text-decoration: none;
    white-space: nowrap;
  }
}

@media (max-width: 400px) {
  .symptoms {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}



@media (max-width: 760px) {
  .br-lg {
    display: none;
  }
}



/* ---------- 案例詳細頁 ---------- */
.case-hero {
  max-width: 780px;
  margin: 0 0 48px;
}
.case-hero__where {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 10px;
}
.case-hero h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  letter-spacing: -0.035em;
  margin: 0 0 16px;
}
.case-hero > p:last-child {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 64ch;
  margin: 0;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px 56px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}
.case-block h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}
.case-block p {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-2);
  margin: 0;
}
.case-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.case-foot__stats {
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
}
.case-foot__money {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 13px;
  color: var(--muted);
}
.case-foot__money strong {
  font-family: var(--mono);
  font-size: 26px;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.case-lesson {
  margin: 28px 0 0;
  padding: 22px 26px;
  background: var(--surface);
  border-radius: var(--r);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
}
.case-lesson strong {
  color: var(--ink);
}

/* ---------- 訊號前後圖 ---------- */
.sigchart {
  border-top: 1px solid var(--line);
  padding-top: 4px;
}
.sigchart__head,
.sigrow {
  display: grid;
  grid-template-columns: 68px 1fr 1fr;
  gap: 14px;
  align-items: center;
}
.sigchart__head {
  padding: 10px 0;
  font-size: 12px;
  color: var(--muted);
}
.sigrow {
  padding: 9px 0;
  border-top: 1px solid var(--line);
}
.sigrow__k {
  font-size: 14px;
  color: var(--ink-2);
}
.sigrow__cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.sigbar {
  flex: 1;
  height: 5px;
  border-radius: 5px;
  background: var(--track);
  overflow: hidden;
  min-width: 40px;
}
.sigbar i {
  display: block;
  height: 100%;
  border-radius: 5px;
}
.sigbar--before i {
  background: var(--track-strong);
}
.sigbar--after i {
  background: var(--action);
}
.sigrow__v {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  min-width: 62px;
  text-align: right;
}
.sigrow__v.is-good {
  color: var(--action);
  font-weight: 600;
}
.sigchart__note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--muted);
}

@media (max-width: 760px) {
  .case-grid {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 28px;
  }
  .case-foot__stats {
    gap: 24px;
  }
  .case-foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }
  .sigchart__head,
  .sigrow {
    grid-template-columns: 52px 1fr 1fr;
    gap: 10px;
  }
  .sigrow__v {
    font-size: 11px;
    min-width: 52px;
  }
  .sigbar {
    min-width: 24px;
  }
}

.case h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin: 0 0 6px;
}
.case h4:not(:first-of-type) {
  margin-top: 18px;
}
@media (max-width: 1000px) {
  .causes--3 {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 760px) {
  .causes--3 {
    grid-template-columns: 1fr;
  }
}