/* ═══════════════════════════════════════════════════════════
   甲醫聯 NAILMED LINK — 前台視覺系統
   深墨綠 × 象牙白 × 霧銀 × 翡翠綠
   ═══════════════════════════════════════════════════════════ */

:root {
  --ink: #0b2e28;
  --ink-2: #104036;
  --ink-3: #17564a;
  --ivory: #f7f4ee;
  --ivory-2: #efeade;
  --paper: #fffdf9;
  --silver: #c3cbc6;
  --silver-2: #dfe4e0;
  --emerald: #2fbf87;
  --emerald-dark: #1d8f63;
  --amber: #c98a2e;
  --red: #b4483c;
  --text: #17241f;
  --text-soft: #4c5a54;
  --text-faint: #7a8781;

  --radius: 4px;
  --radius-lg: 10px;
  --shadow: 0 1px 2px rgba(11, 46, 40, .05), 0 8px 30px rgba(11, 46, 40, .06);
  --shadow-lg: 0 2px 6px rgba(11, 46, 40, .06), 0 24px 60px rgba(11, 46, 40, .1);

  --serif: "Noto Serif TC", "Songti TC", Georgia, serif;
  --sans: "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;

  --wrap: 1160px;
  --gutter: clamp(20px, 5vw, 56px);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
  background: var(--ivory);
  letter-spacing: .01em;
  font-feature-settings: "palt" 1;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink-3); text-decoration: none; }
a:hover { color: var(--emerald-dark); }
:focus-visible { outline: 2px solid var(--emerald); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.35; color: var(--ink); margin: 0 0 .6em; letter-spacing: .005em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.05rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p { margin: 0 0 1.1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(56px, 8vw, 108px); }
.section--tight { padding-block: clamp(40px, 5vw, 64px); }
.section--ink { background: var(--ink); color: var(--ivory); }
.section--ink h1, .section--ink h2, .section--ink h3 { color: var(--paper); }
.section--paper { background: var(--paper); }
.center { text-align: center; }

.eyebrow {
  font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--emerald-dark); font-weight: 700; margin-bottom: 1rem; display: block;
}
.section--ink .eyebrow { color: var(--emerald); }
.lead { font-size: 1.1rem; color: var(--text-soft); max-width: 62ch; }
.section--ink .lead { color: rgba(247, 244, 238, .8); }
.muted { color: var(--text-faint); font-size: .9rem; }

/* ─── 頂部導覽 ───────────────────────────────── */
.topbar {
  background: var(--ink); color: rgba(247, 244, 238, .78);
  font-size: .78rem; letter-spacing: .04em; padding: 7px 0;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.topbar a { color: var(--emerald); }

.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(247, 244, 238, .92);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--silver-2);
}
.nav .wrap { display: flex; align-items: center; gap: 28px; min-height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand__mark { width: 38px; height: 38px; flex: 0 0 38px; }
.brand__zh { font-family: var(--serif); font-size: 1.32rem; font-weight: 700; color: var(--ink); line-height: 1.1; letter-spacing: .06em; }
.brand__en { font-size: .6rem; letter-spacing: .3em; color: var(--text-faint); text-transform: uppercase; }

.nav__links { display: flex; gap: 22px; align-items: center; list-style: none; margin: 0; padding: 0; }
.nav__links a { font-size: .92rem; color: var(--text-soft); font-weight: 500; padding: 6px 0; position: relative; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px;
  background: var(--emerald); transition: right .25s ease;
}
.nav__links a:hover::after, .nav__links a[aria-current="page"]::after { right: 0; }
.nav__links a[aria-current="page"] { color: var(--ink); }

.nav__toggle { display: none; background: none; border: 1px solid var(--silver); border-radius: var(--radius); padding: 8px 11px; cursor: pointer; }
.nav__toggle span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px 0; }

@media (max-width: 940px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column;
    align-items: flex-start; gap: 0; background: var(--paper); border-bottom: 1px solid var(--silver-2);
    padding: 8px var(--gutter) 20px; box-shadow: var(--shadow); display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links li { width: 100%; border-bottom: 1px solid var(--ivory-2); }
  .nav__links a { display: block; padding: 13px 0; width: 100%; }
  .nav__links .btn { margin-top: 12px; }
}

/* ─── 按鈕 ───────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 100px; border: 1px solid transparent;
  font-family: var(--sans); font-size: .93rem; font-weight: 600; letter-spacing: .04em;
  cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  text-align: center;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--ink-3); color: var(--paper); }
.btn--emerald { background: var(--emerald); color: #06251c; }
.btn--emerald:hover { background: var(--emerald-dark); color: #fff; }
.btn--ghost { border-color: var(--silver); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); background: rgba(11, 46, 40, .04); }
.btn--light { background: var(--paper); color: var(--ink); }
.btn--outline-light { border-color: rgba(247, 244, 238, .4); color: var(--paper); }
.btn--outline-light:hover { border-color: var(--emerald); color: var(--emerald); }
.btn--sm { padding: 9px 18px; font-size: .84rem; }
.btn--block { width: 100%; }

/* ─── HERO ───────────────────────────────────── */
.hero { position: relative; background: var(--ink); color: var(--ivory); overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(700px 380px at 82% 18%, rgba(47, 191, 135, .17), transparent 65%),
    radial-gradient(520px 320px at 12% 88%, rgba(47, 191, 135, .08), transparent 60%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center; padding-block: clamp(64px, 10vw, 128px); }
.hero h1 { color: var(--paper); letter-spacing: -.01em; }
.hero h1 em { font-style: normal; color: var(--emerald); }
.hero__sub { font-size: 1.12rem; color: rgba(247, 244, 238, .82); max-width: 46ch; margin-bottom: 2rem; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__note { margin-top: 2.4rem; padding-top: 1.4rem; border-top: 1px solid rgba(247, 244, 238, .16); font-size: .82rem; color: rgba(247, 244, 238, .6); max-width: 52ch; }
.hero__art { display: grid; place-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } .hero__art { display: none; } }

/* ─── 網格與卡片 ─────────────────────────────── */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper); border: 1px solid var(--silver-2); border-radius: var(--radius-lg);
  padding: 30px 28px; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--silver); }
.card h3 { margin-bottom: .45em; }
.card p { color: var(--text-soft); font-size: .95rem; margin-bottom: .6em; }
.card__meta { margin-top: auto; padding-top: 14px; font-size: .78rem; color: var(--text-faint); display: flex; gap: 12px; align-items: center; }
.card--ink { background: var(--ink-2); border-color: rgba(247, 244, 238, .12); color: rgba(247, 244, 238, .8); }
.card--ink p { color: rgba(247, 244, 238, .72); }

.card__num {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .16em; color: var(--emerald-dark);
  border: 1px solid var(--silver-2); border-radius: 100px; padding: 3px 11px; align-self: flex-start; margin-bottom: 16px;
}
.card--ink .card__num { color: var(--emerald); border-color: rgba(47, 191, 135, .4); }

/* ─── 核心精神流程 ───────────────────────────── */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: step; }
@media (max-width: 900px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .flow { grid-template-columns: 1fr; } }
.flow__step {
  border-top: 2px solid var(--emerald); padding-top: 18px;
  background: linear-gradient(180deg, rgba(47, 191, 135, .06), transparent 60%);
}
.flow__key { font-family: var(--mono); font-size: 1.02rem; letter-spacing: .18em; color: var(--ink); font-weight: 700; }
.section--ink .flow__key { color: var(--paper); }
.flow__desc { font-size: .88rem; color: var(--text-soft); margin: 6px 0 0; }
.section--ink .flow__desc { color: rgba(247, 244, 238, .72); }

/* ─── 症狀清單 ───────────────────────────────── */
.signals { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; list-style: none; padding: 0; margin: 0; }
.signals li {
  background: var(--paper); border: 1px solid var(--silver-2); border-left: 3px solid var(--emerald);
  border-radius: var(--radius); padding: 14px 18px; font-size: .93rem; color: var(--text-soft);
}
.signals li strong { color: var(--ink); font-weight: 600; }

/* ─── 分級標記 ───────────────────────────────── */
.level { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; font-weight: 700; letter-spacing: .06em; padding: 4px 12px; border-radius: 100px; }
.level::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.level--red { background: rgba(180, 72, 60, .1); color: var(--red); }
.level--amber { background: rgba(201, 138, 46, .12); color: #96651c; }
.level--green { background: rgba(47, 191, 135, .13); color: var(--emerald-dark); }

/* ─── 文章 ───────────────────────────────────── */
.article-head { background: var(--paper); border-bottom: 1px solid var(--silver-2); padding-block: clamp(40px, 6vw, 72px); }
.article-meta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: .82rem; color: var(--text-faint); margin-top: 18px; }
.prose { font-size: 1.04rem; line-height: 2; color: var(--text); }
.prose h2 { margin-top: 2.2em; font-size: 1.45rem; padding-bottom: .35em; border-bottom: 1px solid var(--silver-2); }
.prose h3 { margin-top: 1.9em; font-size: 1.16rem; color: var(--ink-3); }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.3em; }
.prose li { margin-bottom: .5em; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose blockquote { margin: 1.6em 0; padding: 18px 24px; background: var(--paper); border-left: 3px solid var(--emerald); border-radius: 0 var(--radius) var(--radius) 0; color: var(--text-soft); }
.prose h3 + ul { background: var(--paper); border: 1px solid var(--silver-2); border-radius: var(--radius-lg); padding: 22px 22px 22px 42px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.tag {
  font-size: .78rem; color: var(--text-soft); background: var(--ivory-2);
  border-radius: 100px; padding: 4px 13px; border: 1px solid transparent;
}
a.tag:hover { border-color: var(--emerald); color: var(--emerald-dark); }

/* ─── 篩選列 ─────────────────────────────────── */
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 34px; }
.chip {
  padding: 8px 17px; border-radius: 100px; border: 1px solid var(--silver-2);
  font-size: .86rem; color: var(--text-soft); background: var(--paper);
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.searchbox { display: flex; gap: 8px; margin-left: auto; }
.searchbox input {
  border: 1px solid var(--silver-2); border-radius: 100px; padding: 9px 18px;
  font-family: var(--sans); font-size: .88rem; background: var(--paper); min-width: 210px; color: var(--text);
}
.searchbox input:focus { outline: none; border-color: var(--emerald); }

/* ─── 表單 ───────────────────────────────────── */
.form { display: grid; gap: 20px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .86rem; font-weight: 600; color: var(--ink); }
.field .req { color: var(--red); margin-left: 3px; }
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: .96rem; color: var(--text);
  border: 1px solid var(--silver); border-radius: var(--radius); padding: 12px 14px;
  background: var(--paper); width: 100%; transition: border-color .18s ease, box-shadow .18s ease;
}
.field textarea { min-height: 130px; resize: vertical; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--emerald); box-shadow: 0 0 0 3px rgba(47, 191, 135, .15);
}
.field__hint { font-size: .78rem; color: var(--text-faint); }
.field__error { font-size: .8rem; color: var(--red); font-weight: 600; }
.field--error input, .field--error select, .field--error textarea { border-color: var(--red); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 620px) { .field-row { grid-template-columns: 1fr; } }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.checkgrid { display: grid; gap: 10px; }
.checkitem {
  display: flex; gap: 13px; align-items: flex-start; padding: 15px 18px;
  border: 1px solid var(--silver-2); border-radius: var(--radius-lg); background: var(--paper); cursor: pointer;
  transition: border-color .18s ease, background .18s ease;
}
.checkitem:hover { border-color: var(--silver); }
.checkitem input { margin-top: 6px; width: 17px; height: 17px; accent-color: var(--emerald-dark); flex: 0 0 auto; }
.checkitem__text { font-size: .95rem; color: var(--text); line-height: 1.65; }
.checkitem:has(input:checked) { border-color: var(--emerald); background: rgba(47, 191, 135, .05); }

/* ─── 提示框 ─────────────────────────────────── */
.notice {
  border-radius: var(--radius-lg); padding: 20px 24px; font-size: .92rem;
  border: 1px solid var(--silver-2); background: var(--paper); color: var(--text-soft);
}
.notice--emerald { border-color: rgba(47, 191, 135, .45); background: rgba(47, 191, 135, .07); }
.notice--amber { border-color: rgba(201, 138, 46, .4); background: rgba(201, 138, 46, .07); }
.notice--red { border-color: rgba(180, 72, 60, .35); background: rgba(180, 72, 60, .06); }
.notice strong { color: var(--ink); }
.notice__title { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; color: var(--ink); margin-bottom: .4em; }

/* ─── 結果面板 ───────────────────────────────── */
.result { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--silver-2); background: var(--paper); }
.result__head { padding: 26px 30px; color: #fff; }
.result--red .result__head { background: var(--red); }
.result--amber .result__head { background: #b07a26; }
.result--green .result__head { background: var(--emerald-dark); }
.result--none .result__head { background: var(--ink-3); }
.result__head h3 { color: #fff; margin: 0 0 .3em; font-size: 1.35rem; }
.result__head p { margin: 0; color: rgba(255, 255, 255, .9); font-size: .93rem; }
.result__body { padding: 26px 30px; }
.result__body h4 { font-family: var(--serif); font-size: 1.02rem; color: var(--ink); margin: 0 0 .7em; }
.result__body ul { padding-left: 1.2em; margin: 0 0 1.5em; color: var(--text-soft); font-size: .94rem; }
.result__body li { margin-bottom: .45em; }
.result__disclaimer { border-top: 1px solid var(--silver-2); padding: 16px 30px; font-size: .8rem; color: var(--text-faint); background: var(--ivory); }

/* ─── 步驟流程 ───────────────────────────────── */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; counter-reset: s; }
.steps li {
  background: var(--paper); border: 1px solid var(--silver-2); padding: 24px 28px 24px 78px; position: relative;
  counter-increment: s;
}
.steps li:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.steps li:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.steps li::before {
  content: counter(s, decimal-leading-zero); position: absolute; left: 28px; top: 24px;
  font-family: var(--mono); font-size: .86rem; color: var(--emerald-dark); font-weight: 700; letter-spacing: .06em;
}
.steps h4 { font-family: var(--serif); font-size: 1.08rem; margin: 0 0 .3em; color: var(--ink); }
.steps p { margin: 0; font-size: .92rem; color: var(--text-soft); }

/* ─── 表格 ───────────────────────────────────── */
.table-scroll { overflow-x: auto; border: 1px solid var(--silver-2); border-radius: var(--radius-lg); background: var(--paper); }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 560px; }
table.data th, table.data td { text-align: left; padding: 15px 20px; border-bottom: 1px solid var(--ivory-2); vertical-align: top; }
table.data th { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); font-weight: 700; background: var(--ivory); }
table.data tr:last-child td { border-bottom: none; }
table.data td strong { color: var(--ink); }

/* ─── 不做什麼 ───────────────────────────────── */
.nots { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.nots li { padding: 14px 20px 14px 46px; position: relative; background: var(--paper); border: 1px solid var(--silver-2); border-radius: var(--radius); font-size: .94rem; color: var(--text-soft); }
.nots li::before { content: "✕"; position: absolute; left: 20px; color: var(--red); font-weight: 700; }

/* ─── 頁尾 ───────────────────────────────────── */
.footer { background: var(--ink); color: rgba(247, 244, 238, .68); padding-block: 64px 32px; font-size: .9rem; }
.footer h4 { color: var(--paper); font-family: var(--sans); font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1.1em; }
.footer a { color: rgba(247, 244, 238, .68); display: block; padding: 4px 0; }
.footer a:hover { color: var(--emerald); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 820px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer__grid { grid-template-columns: 1fr; } }
.footer__legal { margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(247, 244, 238, .14); font-size: .78rem; color: rgba(247, 244, 238, .5); line-height: 1.9; }
.footer__legal strong { color: rgba(247, 244, 238, .8); }

/* ─── 分頁 ───────────────────────────────────── */
.pager { display: flex; gap: 8px; justify-content: center; margin-top: 48px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius); border: 1px solid var(--silver-2); font-size: .88rem; color: var(--text-soft); background: var(--paper); padding: 0 12px;
}
.pager .is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.breadcrumb { font-size: .82rem; color: var(--text-faint); margin-bottom: 18px; }
.breadcrumb a { color: var(--text-faint); }
.breadcrumb a:hover { color: var(--emerald-dark); }

.divider { height: 1px; background: var(--silver-2); border: 0; margin: 0; }

.stat { display: grid; gap: 4px; }
.stat__n { font-family: var(--serif); font-size: 2.3rem; color: var(--emerald); line-height: 1; }
.stat__l { font-size: .84rem; color: rgba(247, 244, 238, .7); }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 12px; top: 12px; z-index: 200; background: var(--paper); padding: 10px 16px; border-radius: var(--radius); }

@media print { .nav, .footer, .topbar, .hero__cta { display: none; } body { background: #fff; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; } }