/* ============================================================
   PORT & VESSEL LIVE JAPAN — design system
   Editorial marine atlas. Paper & deep-sea ink.
   Type: Cormorant Garamond / Shippori Mincho / Zen Kaku Gothic New
   ============================================================ */

:root {
  /* surfaces */
  --paper: #ECEBE3;
  --paper-2: #E4E2D6;
  --paper-3: #DBD9CB;
  --card: #F2F1EA;
  --deep: #0F1922;
  --deep-2: #15222E;
  --deep-3: #1B2B3A;

  /* ink */
  --ink: #1B242E;
  --ink-soft: #39434F;
  --muted: #6A7280;
  --fog: #E8E7DD;
  --fog-soft: #B9BDB4;
  --fog-muted: #8A9199;

  /* rules */
  --line: rgba(27, 36, 46, 0.16);
  --line-strong: rgba(27, 36, 46, 0.36);
  --line-dark: rgba(232, 231, 221, 0.14);
  --line-dark-strong: rgba(232, 231, 221, 0.32);

  /* categorical — light surface (validated) */
  --c-container: #2E64A6;
  --c-cargo: #B87A28;
  --c-pax: #0E8A7A;
  --c-tanker: #C14A32;
  --c-car: #7159A8;
  --c-other: #6B8034;

  /* categorical — dark surface (validated) */
  --cd-container: #4E86CC;
  --cd-cargo: #BD7E2C;
  --cd-pax: #1F9484;
  --cd-tanker: #CC5B41;
  --cd-car: #8268C6;
  --cd-other: #7A9639;

  --accent: #2E64A6;
  --accent-on-dark: #4E86CC;
  --alert: #C14A32;

  --f-en: "Cormorant Garamond", Georgia, serif;
  --f-min: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --f-got: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-got);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.95;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: rgba(46, 100, 166, 0.22); }

.wrap { max-width: 1220px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px); }
.wrap-narrow { max-width: 860px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px); }

/* ---------------- sample bar ---------------- */
.sample-bar {
  position: sticky; top: 0; z-index: 90;
  background: var(--deep);
  color: var(--fog);
  border-bottom: 1px solid var(--line-dark);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  padding: 8px 16px;
  text-align: center;
  line-height: 1.6;
}
.sample-bar b {
  color: #7FC4B4;
  font-weight: 500;
  margin-right: 1em;
}
.sample-bar span { opacity: 0.85; }
.sample-bar.warn b { color: #E89A85; }

/* ---------------- nav ---------------- */
.site-nav {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-nav .inner {
  max-width: 1220px; margin: 0 auto;
  padding: 18px clamp(20px, 5vw, 64px);
  display: flex; align-items: baseline; gap: 32px;
}
.brand {
  font-family: var(--f-en);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.14em;
  white-space: nowrap;
}
.brand small {
  display: block;
  font-family: var(--f-got);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.42em;
  color: var(--muted);
  margin-top: 1px;
}
.nav-links {
  display: flex; gap: 26px; margin-left: auto;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  white-space: nowrap;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a:hover { color: var(--ink); border-bottom-color: var(--line-strong); }
.nav-links a.active { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------------- hero ---------------- */
.hero {
  position: relative;
  background:
    radial-gradient(115% 90% at 78% -10%, #24384C 0%, rgba(36, 56, 76, 0) 55%),
    radial-gradient(90% 70% at 12% 108%, #182A38 0%, rgba(24, 42, 56, 0) 60%),
    linear-gradient(168deg, #101C27 0%, #0E1822 46%, #0B141D 100%);
  color: var(--fog);
  overflow: hidden;
}
.hero .chartlines {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
}
.hero .inner {
  position: relative;
  max-width: 1220px; margin: 0 auto;
  padding: clamp(84px, 14vh, 170px) clamp(20px, 5vw, 64px) clamp(64px, 10vh, 130px);
}
.hero .overline {
  font-size: 11px;
  letter-spacing: 0.42em;
  color: var(--fog-muted);
  margin-bottom: 34px;
}
.hero .overline em { font-style: normal; color: #E89A85; }
.hero h1 {
  font-family: var(--f-en);
  font-weight: 500;
  font-size: clamp(52px, 9.6vw, 122px);
  line-height: 0.98;
  letter-spacing: 0.02em;
  color: var(--fog);
}
.hero h1 .thin { font-weight: 400; font-style: italic; }
.hero .catch {
  font-family: var(--f-min);
  font-weight: 600;
  font-size: clamp(19px, 2.6vw, 27px);
  letter-spacing: 0.08em;
  margin-top: 40px;
  color: var(--fog);
}
.hero .lede {
  max-width: 620px;
  margin-top: 22px;
  font-weight: 300;
  font-size: 14.5px;
  color: var(--fog-soft);
}

/* hero stats */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  margin-top: clamp(48px, 8vh, 88px);
}
.stat-row .stat { background: transparent; padding: 26px 22px 22px; }
.stat b {
  display: block;
  font-family: var(--f-en);
  font-weight: 500;
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--fog);
}
.stat b small { font-size: 0.45em; letter-spacing: 0.08em; margin-left: 4px; color: var(--fog-soft); }
.stat span {
  display: block;
  margin-top: 10px;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--fog-muted);
}

/* subpage hero */
.page-hero {
  background: linear-gradient(165deg, #111E29 0%, #0D1720 100%);
  color: var(--fog);
  padding: clamp(56px, 9vh, 110px) 0 clamp(44px, 7vh, 84px);
  border-bottom: 1px solid var(--line-dark);
}
.page-hero .kicker {
  font-size: 10.5px; letter-spacing: 0.4em; color: var(--fog-muted); margin-bottom: 22px;
}
.page-hero h1 {
  font-family: var(--f-en);
  font-weight: 500;
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: 0.02em;
}
.page-hero .ja {
  font-family: var(--f-min);
  font-weight: 600;
  font-size: clamp(16px, 2.2vw, 21px);
  letter-spacing: 0.12em;
  margin-top: 18px;
}
.page-hero .desc { max-width: 640px; margin-top: 18px; font-weight: 300; font-size: 14px; color: var(--fog-soft); }

/* ---------------- chapters ---------------- */
.chapter { padding: clamp(68px, 11vh, 130px) 0; }
.chapter + .chapter { border-top: 1px solid var(--line); }
.chapter.dark {
  background: var(--deep);
  color: var(--fog);
  border-top: none;
}
.ch-label {
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--muted);
  margin-bottom: 26px;
}
.dark .ch-label { color: var(--fog-muted); }
.ch-label .no { font-family: var(--f-en); font-size: 13px; letter-spacing: 0.2em; }
.ch-title {
  font-family: var(--f-min);
  font-weight: 600;
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.5;
  letter-spacing: 0.06em;
  max-width: 760px;
}
.ch-lead {
  max-width: 640px;
  margin-top: 26px;
  font-weight: 300;
  color: var(--ink-soft);
}
.dark .ch-lead { color: var(--fog-soft); }
.ch-en {
  font-family: var(--f-en);
  font-style: italic;
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 14px;
}
.dark .ch-en { color: var(--fog-muted); }

/* ---------------- data annotations ---------------- */
.src-note {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
  line-height: 1.9;
}
.dark .src-note { color: var(--fog-muted); }
.src-note .tag {
  display: inline-block;
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 0 7px;
  margin-right: 8px;
  font-size: 9.5px;
  letter-spacing: 0.2em;
}
.tag-sample { color: #A65440 !important; }
.dark .tag-sample { color: #E89A85 !important; }
.tag-est { color: #6E6428 !important; }
.dark .tag-est { color: #C9BC6A !important; }

/* ---------------- cards & grids ---------------- */
.grid { display: grid; gap: clamp(18px, 2.5vw, 30px); }
.grid.c2 { grid-template-columns: repeat(2, 1fr); }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 26px 26px 24px;
}
.dark .card {
  background: rgba(232, 231, 221, 0.04);
  border-color: var(--line-dark);
}

/* stat tiles (light) */
.tile b {
  display: block;
  font-family: var(--f-en);
  font-weight: 500;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.05;
  color: var(--ink);
}
.dark .tile b { color: var(--fog); }
.tile b small { font-size: 0.44em; letter-spacing: 0.06em; color: var(--muted); margin-left: 4px; }
.dark .tile b small { color: var(--fog-muted); }
.tile span { display: block; margin-top: 8px; font-size: 10.5px; letter-spacing: 0.18em; color: var(--muted); }
.dark .tile span { color: var(--fog-muted); }
.tile .sub { margin-top: 6px; font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-soft); line-height: 1.7; }
.dark .tile .sub { color: var(--fog-soft); }

/* ---------------- tables ---------------- */
.tbl-scroll { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  line-height: 1.7;
}
table.data th {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}
.dark table.data th { color: var(--fog-muted); border-bottom-color: var(--line-dark-strong); }
table.data td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  white-space: nowrap;
}
.dark table.data td { border-bottom-color: var(--line-dark); }
table.data td.num { font-variant-numeric: tabular-nums; }
table.data .name { font-weight: 500; letter-spacing: 0.04em; }
table.data tr:hover td { background: rgba(46, 100, 166, 0.05); }
.dark table.data tr:hover td { background: rgba(232, 231, 221, 0.04); }

/* type dot */
.tdot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  margin-right: 8px; vertical-align: 1px;
}

/* chips */
.chip {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.14em;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 2px 9px;
  color: var(--ink-soft);
  white-space: nowrap;
}
.dark .chip { border-color: var(--line-dark-strong); color: var(--fog-soft); }
.chip.ok { border-color: rgba(14, 138, 122, 0.55); color: #0B6E61; }
.dark .chip.ok { border-color: rgba(31, 148, 132, 0.7); color: #4BB8A8; }
.chip.warn { border-color: rgba(193, 74, 50, 0.5); color: #A03D28; }
.dark .chip.warn { border-color: rgba(204, 91, 65, 0.7); color: #E08A73; }
.chip.mid { border-color: rgba(184, 122, 40, 0.55); color: #8E5E1E; }
.dark .chip.mid { border-color: rgba(189, 126, 44, 0.7); color: #D9A45C; }

/* buttons */
.btn {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.24em;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  padding: 11px 26px;
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.dark .btn { border-color: var(--line-dark-strong); color: var(--fog); }
.dark .btn:hover { background: var(--fog); color: var(--deep); }
.btn.solid { background: var(--ink); color: var(--paper); }
.btn.solid:hover { background: var(--ink-soft); }

.seg { display: inline-flex; border: 1px solid var(--line-dark-strong); border-radius: 2px; overflow: hidden; }
.seg button {
  background: transparent; border: 0; color: var(--fog-soft);
  font-size: 10.5px; letter-spacing: 0.16em; padding: 8px 16px;
}
.seg button + button { border-left: 1px solid var(--line-dark); }
.seg button.on { background: var(--fog); color: var(--deep); }

/* ---------------- map ---------------- */
.map-frame {
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: 3px;
  background:
    radial-gradient(120% 100% at 70% 0%, #17293A 0%, rgba(23, 41, 58, 0) 60%),
    linear-gradient(170deg, #13222F 0%, #0E1B26 100%);
  overflow: hidden;
}
.map-frame svg.baymap { display: block; width: 100%; height: auto; }
.map-legend {
  display: flex; flex-wrap: wrap; gap: 14px 22px;
  padding: 14px 18px;
  border-top: 1px solid var(--line-dark);
  font-size: 10px; letter-spacing: 0.14em; color: var(--fog-muted);
}
.map-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 7px; }

/* vessel detail panel */
.vessel-panel {
  border: 1px solid var(--line-dark);
  border-radius: 3px;
  background: rgba(232, 231, 221, 0.03);
  padding: 24px 26px;
  min-height: 300px;
}
.vessel-panel .vp-empty { color: var(--fog-muted); font-size: 12.5px; font-weight: 300; letter-spacing: 0.08em; }
.vp-name {
  font-family: var(--f-en);
  font-weight: 600;
  font-size: 26px;
  letter-spacing: 0.05em;
  line-height: 1.1;
  color: var(--fog);
}
.vp-type { margin-top: 6px; font-size: 11px; letter-spacing: 0.2em; color: var(--fog-muted); }
.vp-rows { margin-top: 18px; }
.vp-row {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 12.5px;
}
.vp-row dt { color: var(--fog-muted); letter-spacing: 0.1em; font-size: 11px; padding-top: 2px; white-space: nowrap; }
.vp-row dd { color: var(--fog); text-align: right; font-variant-numeric: tabular-nums; }
.vp-big {
  display: flex; gap: 30px; margin-top: 18px;
}
.vp-big b { display: block; font-family: var(--f-en); font-weight: 500; font-size: 38px; line-height: 1; color: var(--fog); }
.vp-big b small { font-size: 0.4em; color: var(--fog-muted); letter-spacing: 0.1em; }
.vp-big span { display: block; font-size: 9.5px; letter-spacing: 0.18em; color: var(--fog-muted); margin-top: 7px; }

/* map vessel marks */
.vmark { cursor: pointer; }
.vmark .halo { fill: transparent; }
.vmark:hover .halo { fill: rgba(232, 231, 221, 0.1); }
.vmark.sel .halo { fill: rgba(232, 231, 221, 0.14); stroke: rgba(232,231,221,.5); stroke-width: 0.8; }
.map-tip {
  position: absolute;
  pointer-events: none;
  background: rgba(10, 17, 24, 0.94);
  border: 1px solid var(--line-dark-strong);
  border-radius: 2px;
  color: var(--fog);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  padding: 8px 12px;
  transform: translate(-50%, calc(-100% - 12px));
  white-space: nowrap;
  z-index: 5;
  display: none;
}
.map-tip small { color: var(--fog-muted); }

/* ---------------- tide card ---------------- */
.tide-card .port-en {
  font-family: var(--f-en); font-weight: 500; font-size: 13px; letter-spacing: 0.3em; color: var(--muted);
}
.tide-card .port-ja { font-family: var(--f-min); font-weight: 600; font-size: 22px; letter-spacing: 0.1em; margin-top: 2px; }
.tide-now { display: flex; align-items: baseline; gap: 12px; margin-top: 14px; }
.tide-now b { font-family: var(--f-en); font-weight: 500; font-size: 46px; line-height: 1; }
.tide-now b small { font-size: 0.38em; letter-spacing: 0.06em; color: var(--muted); }
.trend {
  font-size: 11px; letter-spacing: 0.16em; padding: 2px 10px; border-radius: 2px; border: 1px solid;
}
.trend.up { color: #0B6E61; border-color: rgba(14, 138, 122, 0.5); }
.trend.down { color: #8E5E1E; border-color: rgba(184, 122, 40, 0.55); }
.tide-rows { margin-top: 14px; font-size: 12.5px; }
.tide-rows .vp-row dt { color: var(--muted); }
.tide-rows .vp-row { border-bottom-color: var(--line); }
.tide-rows .vp-row dd { color: var(--ink); }

/* ---------------- charts ---------------- */
.chartbox { position: relative; }
.chartbox svg { display: block; width: 100%; height: auto; }
.chart-tip {
  position: absolute; pointer-events: none; display: none;
  background: rgba(20, 28, 38, 0.95); color: var(--fog);
  border: 1px solid var(--line-dark-strong); border-radius: 2px;
  font-size: 11px; line-height: 1.6; letter-spacing: 0.05em;
  padding: 7px 11px; white-space: nowrap; z-index: 5;
  transform: translate(-50%, calc(-100% - 10px));
}

/* bar list (composition) */
.barlist { margin-top: 6px; }
.barlist .row { display: grid; grid-template-columns: 120px 1fr 44px; align-items: center; gap: 12px; padding: 7px 0; }
.barlist .lbl { font-size: 11.5px; letter-spacing: 0.06em; color: var(--ink-soft); white-space: nowrap; }
.dark .barlist .lbl { color: var(--fog-soft); }
.barlist .bar { height: 12px; border-radius: 0 3px 3px 0; min-width: 2px; }
.barlist .val { font-size: 12px; font-variant-numeric: tabular-nums; text-align: right; color: var(--ink); }
.dark .barlist .val { color: var(--fog); }

/* ---------------- rough sea tool ---------------- */
.tool-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  margin-bottom: 18px;
}
.tool-bar .hint { font-size: 11px; letter-spacing: 0.1em; color: var(--fog-muted); }
.preset-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.preset-chips button {
  background: transparent; border: 1px solid var(--line-dark-strong);
  color: var(--fog-soft); border-radius: 2px;
  font-size: 10.5px; letter-spacing: 0.12em; padding: 6px 13px;
  transition: all 0.15s;
}
.preset-chips button:hover, .preset-chips button.on { background: var(--fog); color: var(--deep); border-color: var(--fog); }

.ai-comment {
  border-left: 2px solid var(--accent-on-dark);
  padding: 6px 0 6px 22px;
  font-size: 13.5px;
  font-weight: 300;
  line-height: 2.1;
  color: var(--fog-soft);
}
.ai-comment .who { font-size: 10px; letter-spacing: 0.28em; color: var(--fog-muted); display: block; margin-bottom: 8px; }

/* ---------------- prose / philosophy ---------------- */
.prose { max-width: 680px; font-weight: 300; color: var(--ink-soft); }
.prose p + p { margin-top: 1.6em; }
.prose strong { font-weight: 500; color: var(--ink); }
.dark .prose { color: var(--fog-soft); }
.dark .prose strong { color: var(--fog); }
.pull {
  font-family: var(--f-min);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 2;
  letter-spacing: 0.1em;
  max-width: 760px;
}
.pull-en {
  font-family: var(--f-en); font-style: italic; font-weight: 400;
  font-size: 15px; letter-spacing: 0.08em; color: var(--muted); margin-top: 16px;
}
.dark .pull-en { color: var(--fog-muted); }

/* numbered steps */
.steps { counter-reset: step; max-width: 720px; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.dark .step { border-bottom-color: var(--line-dark); }
.step .n { font-family: var(--f-en); font-weight: 400; font-size: 34px; color: var(--muted); line-height: 1; }
.dark .step .n { color: var(--fog-muted); }
.step h3 { font-family: var(--f-min); font-weight: 600; font-size: 17px; letter-spacing: 0.08em; margin-bottom: 8px; }
.step p { font-weight: 300; font-size: 13.5px; color: var(--ink-soft); }
.dark .step p { color: var(--fog-soft); }

/* ---------------- disclaimer ---------------- */
.disclaimer {
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 30px 32px;
  font-size: 12.5px;
  font-weight: 300;
  line-height: 2.1;
  color: var(--ink-soft);
  max-width: 860px;
}
.dark .disclaimer { border-color: var(--line-dark-strong); color: var(--fog-soft); }
.disclaimer h4 {
  font-family: var(--f-min); font-weight: 600; font-size: 15px; letter-spacing: 0.14em;
  margin-bottom: 12px; color: var(--ink);
}
.dark .disclaimer h4 { color: var(--fog); }

/* ---------------- footer ---------------- */
.site-footer {
  background: var(--deep);
  color: var(--fog-soft);
  padding: clamp(56px, 9vh, 100px) 0 40px;
  font-weight: 300;
  font-size: 12.5px;
}
.site-footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-footer h5 {
  font-size: 10px; font-weight: 500; letter-spacing: 0.3em; color: var(--fog-muted); margin-bottom: 16px;
}
.site-footer .fbrand { font-family: var(--f-en); font-weight: 600; font-size: 20px; letter-spacing: 0.12em; color: var(--fog); margin-bottom: 14px; }
.site-footer a { border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.site-footer a:hover { border-bottom-color: var(--fog-muted); }
.site-footer ul { list-style: none; }
.site-footer li { padding: 4px 0; }
.site-footer .legal {
  margin-top: 54px; padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  font-size: 10.5px; letter-spacing: 0.1em; color: var(--fog-muted); line-height: 2;
}

/* ---------------- section pattern divider ---------------- */
.sea-quote {
  background:
    radial-gradient(100% 130% at 50% 130%, #1A2E40 0%, rgba(26, 46, 64, 0) 60%),
    linear-gradient(170deg, #0F1B26 0%, #0C161F 100%);
  color: var(--fog);
  text-align: center;
  padding: clamp(80px, 14vh, 150px) 24px;
  position: relative;
  overflow: hidden;
}
.sea-quote .q-ja {
  font-family: var(--f-min); font-weight: 600;
  font-size: clamp(20px, 3.4vw, 32px); letter-spacing: 0.22em; line-height: 2.2;
}
.sea-quote .q-en {
  font-family: var(--f-en); font-style: italic; font-weight: 400;
  font-size: 14px; letter-spacing: 0.18em; color: var(--fog-muted); margin-top: 26px;
}

/* ---------------- responsive ---------------- */
@media (max-width: 960px) {
  .grid.c4 { grid-template-columns: repeat(2, 1fr); }
  .grid.c3 { grid-template-columns: repeat(2, 1fr); }
  .site-footer .cols { grid-template-columns: 1fr; gap: 30px; }
  .map-cols { grid-template-columns: 1fr !important; }
}
@media (max-width: 620px) {
  body { font-size: 14px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .stat-row .stat:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
  .grid.c2, .grid.c3 { grid-template-columns: 1fr; }
  .barlist .row { grid-template-columns: 92px 1fr 40px; }
  .step { grid-template-columns: 44px 1fr; }
  .step .n { font-size: 26px; }
}