/* Mainland Chinese Copy Checker. dminorstudio brand family.
   Layout: bright hero on a faint teal manuscript-paper grid, left-aligned copy with a before/after specimen;
   the two-pane workspace overlaps the hero edge; explainer sections alternate white and panel, with split heads. */
:root {
  color-scheme: light;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-zh: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", ui-sans-serif, system-ui, sans-serif;

  /* dminorstudio brand tokens */
  --white: #ffffff;
  --slate-950: #020617;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --panel: #efefef;
  --teal: #003333;
  --teal-text: #23595b;
  --teal-100: #cbe7e7;
  --teal-50: #eef7f7;
  --cyan-200: #a5f3fc;
  --brand-teal: #1590b0;
  --brand-teal-dark: #0e7490;
  --orange: #e85b23;
  --orange-dark: #c2410c;
  --sky-500: #0ea5e9;
  --sky-400: #38bdf8;

  /* verdict bands */
  --ok: #065f46;   --ok-bg: #d1fae5;   --ok-bar: #059669;
  --warn: #92400e; --warn-bg: #fef3c7; --warn-bar: #d97706;
  --risk: #9a3412; --risk-bg: #ffedd5; --risk-bar: #ea580c;

  /* highlights */
  --hl-trad-bg: #e0f2f1;
  --hl-trad-line: #23595b;
  --hl-reg-bg: #a5f3fc;
  --hl-reg-line: #003333;

  --radius: 0.375rem;
  --shadow-card: 0 24px 48px -24px rgb(14 116 144 / 0.35), 0 2px 8px rgb(0 51 51 / 0.06);
  --shadow: 0 1px 3px rgb(2 6 23 / 0.06), 0 1px 2px rgb(2 6 23 / 0.04);
  --focus: 0 0 0 3px rgb(14 165 233 / 0.55);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

body { margin: 0; font-family: var(--font-sans); font-size: 1rem; line-height: 1.6; color: var(--slate-600); background: var(--white); }

h1, h2, h3, h4 { color: var(--slate-800); line-height: 1.2; margin: 0 0 0.5em; text-wrap: balance; }
h1 { font-size: clamp(2.25rem, 5vw, 3rem); line-height: 1.05; font-weight: 700; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.25rem); line-height: 1.11; font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.0625rem; font-weight: 600; margin-top: 1.25rem; }
p { margin: 0 0 1rem; }
a { color: var(--brand-teal-dark); text-underline-offset: 2px; }
a:hover { color: var(--brand-teal); }
img { max-width: 100%; height: auto; }
[lang="zh-Hans"] { font-family: var(--font-zh); }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 2px; }

.container {
  max-width: 76rem; margin: 0 auto;
  padding-left: max(1.25rem, env(safe-area-inset-left, 0px));
  padding-right: max(1.25rem, env(safe-area-inset-right, 0px));
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 60; background: var(--white); color: var(--slate-950); padding: 0.5rem 1rem; }
.skip-link:focus { left: 1rem; top: 1rem; }

.eyebrow { font-size: 0.875rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--brand-teal-dark); margin: 0 0 0.75rem; }
.lead { font-size: 1.25rem; line-height: 1.6; max-width: 40rem; }
.label { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate-500); margin: 1.5rem 0 0.625rem; }
.fine { font-size: 0.875rem; color: var(--slate-500); margin: 0.75rem 0 0; }

/* Buttons: pills */
.btn {
  font: inherit; font-weight: 600; font-size: 1rem; line-height: 1.25; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 2.75rem; padding: 0.625rem 1.5rem; border-radius: 9999px; border: 0;
  text-decoration: none; transition: background-color .15s, color .15s, box-shadow .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--sky-500); color: var(--slate-950); }
.btn-primary:hover { background: var(--sky-400); color: var(--slate-950); }
.btn:disabled { opacity: 0.7; cursor: progress; }
.btn-accent { background: var(--orange); color: var(--white); }
.btn-accent:hover { background: var(--orange-dark); color: var(--white); }
.btn-outline { background: var(--white); color: var(--slate-700); box-shadow: inset 0 0 0 1px var(--slate-300); }
.btn-outline:hover { color: var(--brand-teal-dark); box-shadow: inset 0 0 0 1px var(--brand-teal); }
.btn-sm { min-height: 2.25rem; padding: 0.375rem 1rem; font-size: 0.9375rem; }
.btn-lg { min-height: 3.25rem; padding: 0.875rem 2rem; font-size: 1.125rem; }
.btn-wide { flex: 1 1 auto; }

/* Header */
.site-header { background: var(--white); border-bottom: 1px solid var(--slate-200); position: relative; z-index: 3; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.25rem; flex-wrap: wrap; padding-block: 0.5rem; }
.brand { display: inline-flex; align-items: center; }
.brand img { width: 146px; height: auto; display: block; }
.site-nav { display: flex; align-items: center; gap: 0.25rem 1.75rem; flex-wrap: wrap; }
.site-nav a:not(.btn) { color: var(--slate-800); text-decoration: none; font-weight: 500; }
.site-nav > a:not(.btn) { color: var(--slate-950); font-weight: 600; font-size: 1rem; white-space: nowrap; }
.site-nav a:not(.btn):hover { color: var(--brand-teal-dark); }
.nav-menu { position: relative; }
.nav-menu-btn {
  font: inherit; font-weight: 600; font-size: 1rem; color: var(--orange-dark); cursor: pointer; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 0.375rem; min-height: 40px; padding: 0; background: none; border: 0;
}
.nav-menu-btn:hover, .nav-menu-btn[aria-expanded="true"] { color: var(--orange); }
.nav-menu-chevron { transition: transform .15s; }
.nav-menu-btn[aria-expanded="true"] .nav-menu-chevron { transform: rotate(180deg); }
.nav-menu-icon { display: none; }
/* Compact header: hide the page links once they no longer fit on one line. */
@media (max-width: 880px) { .site-nav > a:not(.btn) { display: none; } }
.nav-menu-list {
  position: absolute; right: 0; top: calc(100% + 0.5rem); z-index: 30; width: min(20rem, calc(100vw - 2rem));
  list-style: none; margin: 0; padding: 0.375rem; background: var(--white);
  border: 1px solid var(--slate-200); border-radius: var(--radius); box-shadow: var(--shadow-card);
}
.nav-menu-list a { display: flex; flex-direction: column; gap: 0.125rem; padding: 0.625rem 0.75rem; border-radius: var(--radius); text-decoration: none; }
.nav-menu-list a:hover, .nav-menu-list a:focus-visible { background: var(--teal-50); }
.nav-menu-list strong { color: var(--slate-800); font-size: 0.9375rem; }
.nav-menu-list span { color: var(--slate-600); font-size: 0.8125rem; line-height: 1.4; }
/* Phones: icon-only tools toggle so the logo, menu and contact button share one row. */
@media (max-width: 520px) {
  .header-inner { flex-wrap: nowrap; gap: 0.5rem; }
  .site-nav { column-gap: 0.5rem; flex-wrap: nowrap; }
  .nav-menu-label { display: none; }
  .nav-menu-icon { display: block; }
  .site-nav .nav-menu-btn { min-width: 44px; min-height: 44px; justify-content: center; gap: 0.25rem; }
  .site-nav .btn-sm { padding-inline: 0.875rem; }
  .nav-menu { position: static; }
  .nav-menu-list { right: 1rem; left: auto; top: calc(100% - 0.25rem); }
  .site-header .header-inner { position: relative; }
}
@media (max-width: 360px) { .brand img { width: 110px; } }

/* Hero */
.hero {
  position: relative; overflow: hidden; color: var(--slate-800);
  background-color: var(--white);
  background-image:
    linear-gradient(rgb(14 116 144 / 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgb(14 116 144 / 0.07) 1px, transparent 1px),
    radial-gradient(60% 80% at 88% 20%, rgb(165 243 252 / 0.75), transparent 70%),
    radial-gradient(50% 70% at 0% 100%, rgb(203 231 231 / 0.8), transparent 70%);
  background-size: 32px 32px, 32px 32px, 100% 100%, 100% 100%;
  padding-block: 4rem 9rem;
}
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 3rem; align-items: center; }
.hero h1 { color: var(--teal); margin-bottom: 1.25rem; }
.hero .lead { color: var(--teal-text); margin-bottom: 1.75rem; }
.hero-points { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; font-size: 0.9375rem; font-weight: 500; color: var(--teal-text); }
.hero-points li { display: inline-flex; align-items: center; gap: 0.5rem; }
.hero-points li::before {
  content: ""; width: 1.125rem; height: 1.125rem; flex: none; border-radius: 9999px;
  background: var(--brand-teal-dark) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%23ffffff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 0.875rem no-repeat;
}

.specimen { margin: 0; padding: 1.5rem; border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-card); transform: rotate(1deg); }
.specimen-cap { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate-500); margin-bottom: 0.5rem; }
.specimen-line { font-size: 1.75rem; color: var(--slate-950); margin: 0 0 0.375rem; letter-spacing: 0.04em; }
.specimen-line .hl { color: var(--slate-950); cursor: default; }
.specimen-note { font-size: 0.875rem; color: var(--brand-teal-dark); margin: 0 0 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px dashed var(--slate-300); }
.specimen-fix { color: var(--ok); border-bottom: 2px solid var(--ok-bar); }

@media (max-width: 860px) {
  .hero { padding-block: 3rem 7rem; }
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .specimen { max-width: 26rem; }
}
@media (max-width: 600px) {
  .specimen { display: none; }
  .hero { padding-block: 2.5rem 7rem; }
}

/* Workspace */
.workspace { position: relative; z-index: 2; margin-top: -6rem; padding-bottom: 3rem; }
.workspace-grid { display: grid; grid-template-columns: minmax(0, 1fr); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-card); overflow: hidden; }
@media (min-width: 960px) {
  .workspace-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .input-pane { border-right: 1px solid var(--slate-200); }
}
.pane { padding: 1.5rem; min-width: 0; }
.output-pane { background: var(--white); border-top: 1px solid var(--slate-200); }
@media (min-width: 960px) { .output-pane { border-top: 0; } .pane { padding: 2rem; } }
.pane-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.pane-title { font-size: 1.25rem; margin: 0; display: flex; align-items: center; gap: 0.625rem; }
.pane-meta { font-size: 0.875rem; color: var(--slate-500); font-variant-numeric: tabular-nums; }
.pane-meta.over { color: var(--risk); font-weight: 600; }
.step-num {
  display: inline-grid; place-items: center; width: 1.75rem; height: 1.75rem; flex: none;
  border-radius: 9999px; background: var(--brand-teal-dark); color: var(--white); font-size: 0.875rem; font-weight: 700;
}

textarea#copy {
  display: block; width: 100%; min-height: 20rem; resize: vertical;
  font-family: var(--font-zh); font-size: 1.0625rem; line-height: 1.85; color: var(--slate-950);
  background: var(--white); border: 1px solid var(--slate-300); border-radius: var(--radius); padding: 0.875rem 1rem;
}
textarea#copy:focus-visible { border-color: var(--sky-500); }
textarea#copy::placeholder { color: var(--slate-400); }

.samples { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0.875rem 0 1.25rem; font-size: 0.9375rem; }
.samples > span { color: var(--slate-500); margin-right: 0.25rem; }
.sample-btn {
  font: inherit; font-size: 0.875rem; font-weight: 600; cursor: pointer;
  border: 1px solid var(--teal-100); background: var(--teal-50); color: var(--teal-text);
  border-radius: 9999px; padding: 0.3125rem 0.875rem;
}
.sample-btn:hover { border-color: var(--brand-teal); }
.sample-btn[aria-pressed="true"] { background: var(--brand-teal-dark); border-color: var(--brand-teal-dark); color: var(--white); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

/* Output */
.placeholder { text-align: center; padding: 2.5rem 1rem; color: var(--slate-500); }
.placeholder strong { color: var(--slate-800); }
.placeholder p { margin: 0 0 0.375rem; }
.placeholder-grid { display: inline-grid; grid-template-columns: repeat(4, 2.75rem); margin-bottom: 1.25rem; border: 1px solid var(--teal-100); }
.placeholder-grid span { height: 2.75rem; display: grid; place-items: center; font-family: var(--font-zh); font-size: 1.375rem; color: var(--teal-text); border-right: 1px solid var(--teal-100); }
.placeholder-grid span:last-child { border-right: 0; }

.verdict { --band: var(--slate-600); --band-bg: var(--slate-100); --band-bar: var(--slate-400); margin-bottom: 0.5rem; }
.verdict[data-band="mainland"] { --band: var(--ok); --band-bg: var(--ok-bg); --band-bar: var(--ok-bar); }
.verdict[data-band="edits"] { --band: var(--warn); --band-bg: var(--warn-bg); --band-bar: var(--warn-bar); }
.verdict[data-band="not-ready"] { --band: var(--risk); --band-bg: var(--risk-bg); --band-bar: var(--risk-bar); }
.verdict-head { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.band-pill { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.125rem; color: var(--band); background: var(--band-bg); border-radius: 9999px; padding: 0.25rem 0.875rem; }
.band-pill::before { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 9999px; background: var(--band-bar); }
.score-text { color: var(--slate-800); font-weight: 600; font-variant-numeric: tabular-nums; }
.meter { position: relative; height: 0.75rem; border-radius: 9999px; background: var(--slate-200); overflow: hidden; }
.meter-fill { position: absolute; inset: 0 auto 0 0; background: var(--band-bar); border-radius: 9999px; transition: width .5s ease; }
.meter-tick { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--white); }
.meter-scale { position: relative; height: 1.25rem; margin-top: 0.375rem; font-size: 0.75rem; color: var(--slate-500); }
.meter-scale span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.meter-scale span:last-child { transform: translateX(-70%); }
@media (max-width: 480px) { .meter-scale span:first-child { transform: translateX(-70%); } .meter-scale span:nth-child(2) { display: none; } }

.chips { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip { display: inline-flex; align-items: center; gap: 0.375rem; font-size: 0.875rem; color: var(--slate-700); background: var(--white); border: 1px solid var(--slate-200); border-radius: 9999px; padding: 0.25rem 0.75rem; }
.chip strong { color: var(--slate-950); font-variant-numeric: tabular-nums; }
.swatch { width: 0.75rem; height: 0.75rem; border-radius: 2px; flex: none; }
.swatch-trad { background: var(--hl-trad-bg); box-shadow: inset 0 -2px 0 var(--hl-trad-line); }
.swatch-reg { background: var(--hl-reg-bg); box-shadow: inset 0 -2px 0 var(--hl-reg-line); }

.highlighted {
  white-space: pre-wrap; word-break: break-word; line-height: 2.1; font-size: 1.0625rem; color: var(--slate-950);
  background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius);
  padding: 0.875rem 1rem; max-height: 24rem; overflow: auto;
}
.hl { cursor: pointer; border-radius: 2px; color: var(--slate-950); padding: 0.1em 0; }
.hl-trad { background: var(--hl-trad-bg); box-shadow: inset 0 -2px 0 var(--hl-trad-line); }
.hl-reg { background: var(--hl-reg-bg); box-shadow: inset 0 -2px 0 var(--hl-reg-line); }
.hl-ctx { background: transparent; border-bottom: 2px dotted var(--brand-teal-dark); border-radius: 0; }
.hl-reg .trad-in { text-decoration: underline dotted var(--hl-trad-line); text-underline-offset: 5px; }
.highlighted .hl:hover, .highlighted .hl.active { background: var(--brand-teal-dark); color: var(--white); box-shadow: none; }
.highlighted .hl-ctx:hover, .highlighted .hl-ctx.active { background: var(--teal-50); color: var(--slate-950); border-bottom-style: solid; }
.legend { list-style: none; padding: 0; margin: 0.625rem 0 0; display: flex; flex-wrap: wrap; gap: 0.375rem 1.25rem; font-size: 0.8125rem; color: var(--slate-600); }
.legend li { display: inline-flex; align-items: center; gap: 0.375rem; }
.legend .hl { cursor: default; font-family: var(--font-zh); }
.highlighted .hl:focus-visible { box-shadow: var(--focus); }

.popover {
  position: absolute; z-index: 40; max-width: 19rem; background: var(--slate-950); color: var(--white);
  border-radius: var(--radius); padding: 0.75rem 0.875rem; font-size: 0.875rem; line-height: 1.5;
  box-shadow: 0 12px 28px rgb(2 6 23 / 0.3);
}
.popover .pop-term { font-size: 1.125rem; color: var(--cyan-200); font-weight: 700; }
.popover .pop-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate-950); background: var(--cyan-200); border-radius: 9999px; padding: 0 0.5rem; margin: 0.125rem 0 0.375rem; }
.popover dl { margin: 0.375rem 0 0; display: grid; grid-template-columns: auto 1fr; gap: 0.125rem 0.625rem; }
.popover dt { color: var(--slate-400); }
.popover dd { margin: 0; }

.top-issues { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.issue { background: var(--white); border: 1px solid var(--slate-200); border-left: 3px solid var(--hl-reg-line); border-radius: var(--radius); padding: 0.625rem 0.875rem; font-size: 0.9375rem; }
.issue.trad { border-left-color: var(--hl-trad-line); border-left-style: dotted; }
.issue.ctx { border-left: 3px dotted var(--brand-teal-dark); background: var(--white); }
.issue .meta.note { color: var(--slate-500); }
.issue .terms { font-size: 1.125rem; color: var(--slate-950); display: flex; align-items: center; flex-wrap: wrap; gap: 0.25rem; }
.issue .terms .arrow { color: var(--slate-400); padding: 0 0.125rem; }
.issue .meta { font-size: 0.8125rem; color: var(--slate-600); margin-top: 0.125rem; }
.count-badge-soft { background: var(--teal-50) !important; color: var(--teal-text) !important; box-shadow: inset 0 0 0 1px var(--teal-100); }
.count-badge { display: inline-block; background: var(--brand-teal-dark); color: var(--white); border-radius: 9999px; padding: 0 0.5rem; font-size: 0.75rem; font-weight: 700; font-family: var(--font-sans); vertical-align: middle; font-variant-numeric: tabular-nums; }
.group-note { font-size: 0.875rem; color: var(--slate-600); margin: 0 0 0.75rem; }
.group-empty { margin: 0; color: var(--slate-600); }
.result-summary { font-size: 0.875rem; color: var(--slate-600); margin: 0.75rem 0 0; }
.form-status { font-size: 0.9375rem; color: var(--risk); margin: 0.5rem 0 0; }
.form-status:empty { display: none; }
.disclaimer { font-size: 0.875rem; color: var(--slate-600); border-top: 1px solid var(--slate-200); padding-top: 0.875rem; margin: 1.25rem 0 0; }

/* Preview card: placed in the input pane on desktop, under the score on phones */
.preview-slot:empty { display: none; }
#preview-slot-desktop { margin-top: 1.5rem; }
#preview-slot-mobile { margin-top: 1rem; }
.preview-card { border: 1px solid var(--teal-100); background: linear-gradient(140deg, var(--cyan-50), var(--white) 60%); border-radius: var(--radius); padding: 1.25rem; }
.preview-card h3 { margin: 0 0 0.25rem; color: var(--teal); }
.preview-card > p { margin: 0 0 0.875rem; font-size: 0.9375rem; }
.preview-blur { filter: blur(4px); user-select: none; pointer-events: none; margin-bottom: 1rem; background: var(--white); border-radius: var(--radius); padding: 0.5rem 0.75rem; box-shadow: var(--shadow); }
.preview-table { font-size: 0.9375rem; margin-bottom: 0.5rem; }
.preview-table td { padding: 0.25rem 0.5rem; }
.preview-text { margin: 0; font-size: 0.9375rem; color: var(--slate-800); line-height: 1.7; }

.reviewer-card { margin-top: 1.5rem; border-radius: var(--radius); border: 1px solid var(--teal-100); background: linear-gradient(120deg, var(--cyan-50), var(--teal-50)); padding: 1.75rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.25rem 2rem; align-items: center; }
.reviewer-card h2 { font-size: 1.5rem; color: var(--teal); margin-bottom: 0.375rem; }
.reviewer-card p { margin: 0; }
@media (max-width: 760px) { .reviewer-card { grid-template-columns: minmax(0, 1fr); justify-items: start; } }

/* Gate */
.gate { margin-top: 1.5rem; border-radius: var(--radius); background: linear-gradient(120deg, var(--cyan-50), var(--teal-50)); border: 1px solid var(--teal-100); color: var(--slate-700); display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding: 1.75rem; }
@media (min-width: 860px) { .gate { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); padding: 2.5rem; gap: 3rem; } }
.gate h2 { color: var(--teal); font-size: 1.75rem; }
.gate-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.gate-list li { display: flex; gap: 0.625rem; }
.gate-list li::before { content: ""; flex: none; width: 0.5rem; height: 0.5rem; margin-top: 0.55rem; border-radius: 9999px; background: var(--brand-teal); }
.gate-form { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.5rem; display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.875rem; color: var(--slate-600); align-content: start; }
@media (min-width: 560px) { .gate-form { grid-template-columns: 1fr 1fr; } .gate-form .field:nth-child(3), .gate-form .consent, .gate-form .btn, .gate-form .form-error { grid-column: 1 / -1; } }
.field label .optional { font-weight: 400; color: var(--slate-500); }
.field label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--slate-800); margin-bottom: 0.25rem; }
.field input { width: 100%; font: inherit; color: var(--slate-950); background: var(--white); border: 1px solid var(--slate-300); border-radius: var(--radius); padding: 0.5625rem 0.75rem; min-height: 2.75rem; }
.field input:focus-visible { border-color: var(--sky-500); }
.field input[aria-invalid="true"] { border-color: var(--risk); }
.consent { display: flex; gap: 0.625rem; align-items: flex-start; font-size: 0.875rem; }
.consent input { margin-top: 0.25rem; width: 1.125rem; height: 1.125rem; flex: none; accent-color: var(--teal); }
.form-error { color: var(--risk); font-size: 0.9375rem; margin: 0; }
.form-error:empty { display: none; }

/* Report */
.report { background: var(--panel); padding-block: 3.5rem; }
.report-head { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.report-head h2 { margin: 0; }
.report-section { background: var(--white); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.25rem; box-shadow: var(--shadow); }
.report-section h3 { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.report-section-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.report-section-head h3 { margin: 0; }
.issue-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr)); }
.char-grid { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.375rem; }
.char-grid li { display: inline-flex; align-items: center; gap: 0.25rem; background: var(--hl-trad-bg); border-radius: var(--radius); padding: 0.125rem 0.5rem; color: var(--slate-950); }
.char-grid .arrow { color: var(--slate-500); font-size: 0.875rem; }
.corrected { white-space: pre-wrap; word-break: break-word; background: var(--teal-50); border-radius: var(--radius); padding: 1rem 1.125rem; line-height: 1.9; color: var(--slate-950); margin: 0; font-size: 1rem; }
.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.9375rem; }
th, td { text-align: left; padding: 0.625rem 0.75rem; border-bottom: 1px solid var(--slate-200); vertical-align: top; }
thead th { color: var(--slate-800); background: var(--slate-100); font-weight: 600; font-size: 0.875rem; }
td.zh { color: var(--slate-950); font-size: 1.0625rem; white-space: nowrap; }
td a { white-space: nowrap; }
.report-totals { margin: 0.375rem 0 0; font-weight: 600; color: var(--slate-700); font-variant-numeric: tabular-nums; }
.cell-note { display: block; font-size: 0.8125rem; color: var(--slate-500); white-space: normal; margin-top: 0.125rem; font-family: var(--font-sans); }
.glossary-table td.zh { white-space: normal; min-width: 8rem; }
.report-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; padding: 1.25rem 1.5rem; border-radius: var(--radius); background: var(--white); border: 1px solid var(--teal-100); }
.report-cta p { margin: 0; color: var(--slate-700); }
.print-only { display: none; }

/* Explainer sections */
.section { padding-block: 5rem; }
.section-panel { background: var(--panel); }
.section-head { max-width: 40rem; margin-bottom: 2.5rem; }
.section-head h2 { margin-bottom: 0.75rem; }
.split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem 4rem; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } .split .section-head { margin-bottom: 0; } }
.prose { max-width: 42rem; font-size: 1.0625rem; }
.prose ul { padding-left: 1.25rem; margin: 0; }
.prose li { margin-bottom: 0.75rem; }
.prose li::marker { color: var(--brand-teal); }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; } }
.steps li { background: var(--teal-50); border-radius: var(--radius); padding: 1.5rem; }
.steps .step-num { width: 2.25rem; height: 2.25rem; font-size: 1rem; margin-bottom: 1rem; }
.steps p { margin: 0; }

.checks { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; }
@media (min-width: 640px) { .checks { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .checks { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.check-card { background: var(--white); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.check-card p:last-child { margin: 0; }
.check-demo { font-size: 1.5rem; color: var(--slate-950); display: flex; align-items: center; gap: 0.625rem; padding-bottom: 1rem; margin-bottom: 1rem; border-bottom: 1px solid var(--slate-200); }
.check-demo .hl { cursor: default; }
.check-arrow { color: var(--slate-400); font-size: 1rem; }
.check-tag { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--teal-text); background: var(--teal-50); border-radius: 9999px; padding: 0.125rem 0.625rem; }

.table-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); }
.compare th[scope="row"] { color: var(--slate-800); font-weight: 600; white-space: nowrap; background: var(--white); }
.compare td { min-width: 11rem; }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.terms-title { margin-top: 2rem; }
.term-pairs { list-style: none; padding: 0; margin: 0 0 1.5rem; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 11rem), 1fr)); gap: 0.5rem; }
.term-pairs li { background: var(--white); border-radius: var(--radius); padding: 0.75rem 1rem; display: flex; flex-direction: column; gap: 0.125rem; box-shadow: var(--shadow); }
.term-en { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate-500); }
.term-pairs [lang] { font-size: 1.125rem; color: var(--slate-600); }
.term-pairs b { color: var(--slate-950); font-weight: 600; }
.callout { border-left: 3px solid var(--brand-teal); padding: 0.25rem 0 0.25rem 1rem; color: var(--slate-700); max-width: 50rem; margin: 0; }

.sources { list-style: none; padding: 0; margin: 0; counter-reset: src; display: grid; gap: 1rem; }
.sources li { counter-increment: src; position: relative; padding: 1.25rem 1.25rem 1.25rem 3.75rem; border: 1px solid var(--slate-200); border-radius: var(--radius); }
.sources li::before {
  content: counter(src); position: absolute; left: 1.25rem; top: 1.25rem; width: 1.75rem; height: 1.75rem; border-radius: 9999px;
  background: var(--brand-teal-dark); color: var(--white); display: grid; place-items: center; font-weight: 700; font-size: 0.875rem;
}
.trust { font-size: 0.9375rem; color: var(--slate-700); border-left: 3px solid var(--brand-teal); padding-left: 0.875rem; }
.sources h3 { font-size: 1.0625rem; margin-bottom: 0.375rem; }
.sources p { margin: 0; }
.sources li:target { border-color: var(--brand-teal); box-shadow: 0 0 0 3px var(--teal-100); }

/* CTA and footer */
.cta {
  color: var(--teal-text); padding-block: 4.5rem 3.5rem;
  background-color: var(--teal-50);
  background-image: linear-gradient(rgb(14 116 144 / 0.06) 1px, transparent 1px), linear-gradient(90deg, rgb(14 116 144 / 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  border-top: 1px solid var(--teal-100);
}
.cta-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem 3rem; align-items: center; }
@media (max-width: 760px) { .cta-inner { grid-template-columns: minmax(0, 1fr); justify-items: start; } }
.cta h2 { color: var(--teal); }
.cta .lead { color: var(--teal-text); margin: 0; }
.more-tools { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--teal-100); }
.more-tools-title { color: var(--teal); font-size: 1.375rem; margin-bottom: 1rem; }
.tool-cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
@media (min-width: 760px) { .tool-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.tool-card {
  display: flex; flex-direction: column; gap: 0.5rem; height: 100%; padding: 1.5rem; text-decoration: none;
  background: var(--white); border: 1px solid var(--teal-100); border-top: 4px solid var(--brand-teal); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: box-shadow .15s, transform .15s, border-color .15s;
}
.tool-card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); border-color: var(--brand-teal); }
.tool-name { font-size: 1.25rem; font-weight: 700; color: var(--slate-800); line-height: 1.25; }
.tool-desc { color: var(--slate-600); }
.tool-go { margin-top: auto; padding-top: 0.25rem; font-weight: 700; color: var(--brand-teal-dark); }
.tool-card:hover .tool-go { text-decoration: underline; }
.site-footer { background: var(--slate-950); color: var(--slate-400); font-size: 0.875rem; padding-block: 2rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; }
.footer-inner p { margin: 0; }
.site-footer a { color: inherit; }
.site-footer a:hover { color: var(--white); }
.footer-logo img { width: 120px; display: block; }

/* Print: the result and full report as a clean PDF */
@media print {
  @page { margin: 16mm 14mm; }
  body { font-size: 10.5pt; color: #000; background: #fff; }
  .site-nav, .hero, .input-pane, .gate, .preview-card, .reviewer-card, .skip-link, .section, .cta, .site-footer, .no-print, .popover, #report-actions, .report-cta .btn { display: none !important; }
  .report-cta { break-inside: avoid; border: 1px solid #ccc; }
  .print-only { display: block; margin-bottom: 1rem; }
  .site-header { border: 0; }
  .workspace { margin: 0; padding: 0; }
  .workspace-grid { display: block; box-shadow: none; border: 1px solid #ccc; }
  .output-pane { border: 0; background: #fff; }
  .highlighted { max-height: none; overflow: visible; }
  .report { background: none; padding: 0; break-before: page; }
  .report-section { box-shadow: none; border: 1px solid #ccc; }
  .report-section h3, .issue, tr, .char-grid li { break-inside: avoid; }
  h2, h3, h4 { break-after: avoid; }
  table { font-size: 9pt; }
  td a { white-space: normal; }
  th, td { padding: 0.375rem 0.5rem; }
  .hl-trad, .hl-reg, .meter, .meter-fill, .band-pill, .chip, .issue, .count-badge, thead th, .step-num, .char-grid li, .corrected, .swatch {
    -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }
}