@charset "UTF-8";
/* 株式会社石川商事 LP — 2026-09 刷新 */

:root {
  --navy: #0b2545;
  --navy-deep: #071a33;
  --navy-soft: #13375f;
  --ink: #1c1f26;
  --ink-soft: #4a5060;
  --line: #d9dbe0;
  --paper: #f6f5f1;
  --white: #ffffff;
  --gold: #b08d57;
  --gold-light: #d8bf8e;
  --cyan: #0bc0da;
  --serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --en: "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --max: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
  background: var(--white);
  letter-spacing: 0.02em;
  font-feature-settings: "palt";
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.4; }
p { margin: 0; }

.container { width: min(100% - var(--gutter) * 2, var(--max)); margin-inline: auto; }
.en { font-family: var(--en); letter-spacing: 0.18em; text-transform: uppercase; font-weight: 500; }

/* ---------- header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding: 22px 0;
  transition: background .35s ease, padding .35s ease, box-shadow .35s ease;
  color: var(--white);
}
.header.is-solid { background: rgba(255,255,255,.96); color: var(--navy); padding: 12px 0; box-shadow: 0 1px 0 rgba(11,37,69,.08); backdrop-filter: blur(8px); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; white-space: nowrap; flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-family: var(--serif); font-size: 20px; font-weight: 700; letter-spacing: .12em; }
.brand__sub { font-size: 10px; letter-spacing: .28em; opacity: .75; font-family: var(--en); }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-size: 14px; letter-spacing: .1em; position: relative; padding: 4px 0; white-space: nowrap; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .3s; }
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header__tel { display: flex; white-space: nowrap; flex-shrink: 0; align-items: center; gap: 10px; padding: 10px 18px; border: 1px solid currentColor; border-radius: 2px; font-family: var(--en); font-size: 18px; letter-spacing: .08em; transition: background .3s, color .3s; }
.header__tel small { font-family: var(--sans); font-size: 11px; letter-spacing: .1em; }
.header__tel:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }
.menu-btn { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; padding: 0; position: relative; color: inherit; }
.menu-btn span { position: absolute; left: 10px; width: 24px; height: 1.5px; background: currentColor; transition: transform .3s, opacity .3s, top .3s; }
.menu-btn span:nth-child(1) { top: 15px; } .menu-btn span:nth-child(2) { top: 22px; } .menu-btn span:nth-child(3) { top: 29px; }
.header.is-open .menu-btn span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.header.is-open .menu-btn span:nth-child(2) { opacity: 0; }
.header.is-open .menu-btn span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: grid; align-items: end;
  color: var(--white); background: var(--navy-deep); overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; animation: heroZoom 18s ease-out forwards; }
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero__bg::after { content: ""; position: absolute; inset: 0; background:
  linear-gradient(180deg, rgba(7,26,51,.35) 0%, rgba(7,26,51,.15) 40%, rgba(7,26,51,.85) 100%),
  linear-gradient(90deg, rgba(7,26,51,.55) 0%, rgba(7,26,51,0) 60%); }
.hero__inner { position: relative; padding: 160px 0 0; }
.hero__eyebrow { font-size: 13px; letter-spacing: .32em; opacity: .85; margin-bottom: 26px; display: flex; align-items: center; gap: 16px; }
.hero__eyebrow::before { content: ""; width: 48px; height: 1px; background: var(--gold-light); }
.hero__title { font-family: var(--serif); font-size: clamp(34px, 5.4vw, 68px); font-weight: 700; line-height: 1.35; letter-spacing: .06em; }
.hero__title span { display: block; }
.hero__lead { margin-top: 26px; font-size: clamp(14px, 1.4vw, 17px); letter-spacing: .12em; opacity: .9; }
.hero__stats { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.25); }
.hero__stats li { padding: 26px 28px 30px 0; border-right: 1px solid rgba(255,255,255,.25); }
.hero__stats li + li { padding-left: 28px; }
.hero__stats li:last-child { border-right: 0; }
.hero__stats .num { font-family: var(--en); font-size: clamp(34px, 3.6vw, 48px); line-height: 1; letter-spacing: .04em; color: var(--gold-light); }
.hero__stats .num small { font-family: var(--serif); font-size: .42em; margin-left: 4px; color: var(--white); letter-spacing: .1em; }
.hero__stats .lbl { font-size: 13px; letter-spacing: .1em; margin-top: 10px; opacity: .9; }
.hero__scroll { position: absolute; right: var(--gutter); bottom: 32px; font-family: var(--en); font-size: 11px; letter-spacing: .3em; writing-mode: vertical-rl; display: flex; align-items: center; gap: 12px; opacity: .8; }
.hero__scroll::after { content: ""; width: 1px; height: 56px; background: linear-gradient(180deg, var(--white), transparent); animation: scrollLine 2.2s ease-in-out infinite; }
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- sections ---------- */
.section { padding: clamp(80px, 10vw, 140px) 0; }
.section--paper { background: var(--paper); }
.section--navy { background: var(--navy); color: var(--white); }
.sec-head { margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head .en { display: block; font-size: 13px; color: var(--gold); margin-bottom: 14px; }
.section--navy .sec-head .en { color: var(--gold-light); }
.sec-head h2 { font-family: var(--serif); font-size: clamp(26px, 3.2vw, 40px); font-weight: 700; letter-spacing: .08em; line-height: 1.4; }
.sec-head p { margin-top: 18px; color: var(--ink-soft); max-width: 640px; }
.section--navy .sec-head p { color: rgba(255,255,255,.8); }
.sec-head--center { text-align: center; }
.sec-head--center p { margin-inline: auto; }

/* message */
.message { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
.message__lead { font-family: var(--serif); font-size: clamp(24px, 2.8vw, 36px); font-weight: 700; letter-spacing: .08em; line-height: 1.6; color: var(--navy); }
.message__lead .en { display: block; font-size: 12px; color: var(--gold); margin-bottom: 20px; }
.message__body { margin-top: 28px; color: var(--ink-soft); font-size: 15.5px; line-height: 2.1; }
.message__fig { position: relative; }
.message__fig img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.message__fig::before { content: ""; position: absolute; inset: 24px -24px -24px 24px; border: 1px solid var(--gold-light); z-index: -1; }

/* services */
.services { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.services li { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 32px 26px 30px; background: var(--white); transition: background .3s; }
.services li:hover { background: #fbfaf7; }
.services .idx { font-family: var(--en); font-size: 13px; letter-spacing: .2em; color: var(--gold); }
.services h3 { margin-top: 14px; font-size: 17px; font-weight: 600; letter-spacing: .06em; color: var(--navy); }
.services p { margin-top: 10px; font-size: 13px; color: var(--ink-soft); line-height: 1.8; }

/* business (alternating) */
.biz { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 6vw, 88px); align-items: center; }
.biz + .biz { margin-top: clamp(80px, 9vw, 130px); }
.biz--rev .biz__fig { order: 2; }
.biz__tag { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; letter-spacing: .18em; color: var(--gold); border: 1px solid var(--gold-light); padding: 5px 14px; border-radius: 999px; }
.biz h3 { margin-top: 20px; font-family: var(--serif); font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; letter-spacing: .06em; color: var(--navy); }
.biz .sub { margin-top: 10px; font-size: 15px; font-weight: 600; color: var(--navy-soft); letter-spacing: .06em; }
.biz .txt { margin-top: 22px; color: var(--ink-soft); font-size: 15px; line-height: 2.05; }
.biz .txt strong { color: var(--navy); font-weight: 600; }
.biz__fig img { width: 100%; object-fit: cover; }
.biz__fig--single img { aspect-ratio: 5 / 4; }
.pills { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.pills li { font-family: var(--serif); font-size: 15px; font-weight: 700; letter-spacing: .1em; color: var(--navy); border: 1px solid var(--navy); padding: 8px 22px; }
.pills li.gold { color: var(--gold); border-color: var(--gold); }
.badges { margin-top: 28px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.badges li { text-align: center; padding: 18px 8px; background: var(--navy); color: var(--white); font-family: var(--serif); font-size: 15px; font-weight: 700; letter-spacing: .14em; position: relative; }
.badges li::after { content: ""; position: absolute; inset: 5px; border: 1px solid rgba(216,191,142,.7); pointer-events: none; }
.link-arrow { display: inline-flex; align-items: center; gap: 14px; margin-top: 30px; font-size: 14px; letter-spacing: .14em; color: var(--navy); font-weight: 600; }
.link-arrow .arr { width: 44px; height: 44px; border: 1px solid var(--navy); border-radius: 50%; display: grid; place-items: center; transition: background .3s, color .3s; }
.link-arrow:hover .arr { background: var(--navy); color: var(--white); }
.link-arrow svg { width: 16px; height: 16px; }
.anniv { display: flex; align-items: baseline; gap: 10px; margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); }
.anniv .num { font-family: var(--en); font-size: 64px; line-height: 1; color: var(--gold); letter-spacing: .02em; }
.anniv .num sup { font-size: .32em; vertical-align: top; top: .3em; position: relative; }
.anniv .lbl { font-size: 13px; letter-spacing: .12em; color: var(--ink-soft); line-height: 1.5; }
.anniv .lbl b { display: block; color: var(--navy); font-size: 15px; }

.reform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.reform-grid img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.reform-grid img:first-child { grid-column: 1 / -1; aspect-ratio: 16 / 10; }
.deflist { margin-top: 26px; display: grid; gap: 14px; }
.deflist dt { font-weight: 600; color: var(--navy); font-size: 15px; letter-spacing: .06em; padding-left: 14px; border-left: 2px solid var(--gold); line-height: 1.4; }
.deflist dd { margin: 6px 0 0 16px; color: var(--ink-soft); font-size: 14px; line-height: 1.9; }
.two-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.two-photos img { aspect-ratio: 4 / 3; object-fit: cover; }
.values { margin-top: 24px; display: flex; gap: 14px; flex-wrap: wrap; }
.values li { width: 78px; height: 78px; border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-size: 13px; font-weight: 700; letter-spacing: .06em; color: var(--navy); background: var(--white); border: 1px solid var(--line); box-shadow: 0 6px 20px rgba(11,37,69,.06); }

/* works */
.works { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.works figure { margin: 0; }
.works .ph { overflow: hidden; aspect-ratio: 4 / 5; background: var(--navy-deep); }
.works img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s ease; }
.works figure:hover img { transform: scale(1.05); }
.works figcaption { margin-top: 14px; display: flex; flex-direction: column; gap: 2px; }
.works .en { font-size: 11px; color: var(--gold-light); }
.works .nm { font-family: var(--serif); font-size: 16px; font-weight: 700; letter-spacing: .06em; }
.works-note { margin-top: 32px; font-size: 13px; color: rgba(255,255,255,.7); letter-spacing: .08em; }

/* awards */
.awards { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
.award-list { margin-top: 32px; display: grid; gap: 18px; }
.award-list li { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; padding: 22px 26px; background: var(--white); border: 1px solid var(--line); }
.award-list .no { font-family: var(--en); font-size: 34px; color: var(--gold); line-height: 1; }
.award-list .no small { font-size: .4em; letter-spacing: .1em; display: block; margin-top: 2px; color: var(--ink-soft); }
.award-list .ttl { font-weight: 600; color: var(--navy); font-size: 16px; letter-spacing: .04em; }
.award-list .wk { font-size: 13px; color: var(--ink-soft); font-family: var(--en); letter-spacing: .06em; text-transform: none; }
.awards__fig { position: relative; padding: 32px; background: var(--white); border: 1px solid var(--line); }
.awards__fig img { width: 100%; }
.awards__fig .seal { position: absolute; top: -18px; right: 28px; padding: 10px 18px; background: var(--navy); color: var(--gold-light); font-family: var(--serif); font-size: 13px; font-weight: 700; letter-spacing: .14em; }

/* president */
.president { display: grid; grid-template-columns: 380px 1fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.president__fig { position: sticky; top: 100px; }
.president__fig img { width: 100%; aspect-ratio: 375 / 458; object-fit: cover; }
.president__name { margin-top: 20px; }
.president__name .pos { font-size: 12px; letter-spacing: .2em; color: var(--gold); }
.president__name .jp { font-family: var(--serif); font-size: 28px; font-weight: 700; letter-spacing: .1em; color: var(--navy); line-height: 1.3; }
.president__name .en { font-size: 12px; color: var(--ink-soft); }
.president__quote { font-family: var(--serif); font-size: clamp(18px, 1.8vw, 22px); font-weight: 700; line-height: 1.9; letter-spacing: .06em; color: var(--navy); padding-left: 24px; border-left: 2px solid var(--gold); }
.president__cols { margin-top: 40px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.president__cols h4 { font-size: 13px; letter-spacing: .2em; color: var(--gold); padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.president__cols li { font-size: 14px; color: var(--ink-soft); padding: 5px 0 5px 16px; position: relative; line-height: 1.7; }
.president__cols li::before { content: ""; position: absolute; left: 0; top: 16px; width: 6px; height: 1px; background: var(--gold); }

/* company */
.company { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 80px); align-items: start; }
.company table { width: 100%; border-collapse: collapse; font-size: 15px; }
.company th, .company td { padding: 16px 0; border-bottom: 1px solid var(--line); vertical-align: top; text-align: left; }
.company th { width: 120px; font-weight: 600; color: var(--navy); letter-spacing: .1em; }
.company td { color: var(--ink-soft); }
.company td a { color: var(--navy); font-weight: 600; }
.map { aspect-ratio: 4 / 3; width: 100%; border: 0; filter: grayscale(.2); }
.contact-box { margin-top: 32px; padding: 28px 30px; background: var(--navy); color: var(--white); display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.contact-box .lbl { font-size: 13px; letter-spacing: .16em; color: var(--gold-light); }
.contact-box .tel { font-family: var(--en); font-size: 38px; letter-spacing: .04em; line-height: 1.1; }
.contact-box .hours { font-size: 12px; opacity: .8; letter-spacing: .08em; margin-top: 4px; }

/* footer */
.footer { background: var(--navy-deep); color: rgba(255,255,255,.75); padding: 56px 0 32px; font-size: 13px; }
.footer__top { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
.footer .brand__name { color: var(--white); }
.footer__nav { display: flex; gap: 26px; flex-wrap: wrap; font-size: 13px; letter-spacing: .1em; }
.footer__nav a:hover { color: var(--white); }
.footer__bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; letter-spacing: .06em; font-size: 12px; }

/* reveal */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s ease; }
.rv.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } .hero__bg img { animation: none; } }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .works { grid-template-columns: repeat(2, 1fr); }
  .president { grid-template-columns: 300px 1fr; }
  .nav { display: none; }
}
@media (max-width: 860px) {
  .header { padding: 14px 0; }
  .header__tel { display: none; }
  .menu-btn { display: block; }
  .nav { display: none; position: fixed; inset: 0; background: var(--navy); color: var(--white); flex-direction: column; justify-content: center; gap: 28px; z-index: 90; font-size: 18px; }
  .header.is-open .nav { display: flex; }
  .header.is-open { color: var(--white); background: transparent; box-shadow: none; }
  .header.is-open .brand, .header.is-open .menu-btn { position: relative; z-index: 95; }
  .nav a { font-family: var(--serif); font-size: 20px; letter-spacing: .16em; }
  .nav .nav__tel { margin-top: 20px; font-family: var(--en); font-size: 30px; letter-spacing: .04em; }
  .hero { min-height: 92svh; }
  .hero__inner { padding-top: 120px; }
  .hero__stats { grid-template-columns: 1fr; border-top: 0; }
  .hero__stats li { border-right: 0; border-top: 1px solid rgba(255,255,255,.25); padding: 18px 0; display: flex; align-items: baseline; gap: 16px; }
  .hero__stats li + li { padding-left: 0; }
  .hero__stats .num { font-size: 32px; }
  .hero__stats .lbl { margin-top: 0; }
  .hero__scroll { display: none; }
  .hero__eyebrow { font-size: 11px; letter-spacing: .22em; }
  html.menu-open, html.menu-open body { overflow: hidden; }
  .message, .biz, .awards, .president, .company { grid-template-columns: 1fr; }
  .biz--rev .biz__fig { order: 0; }
  .message__fig::before { inset: 16px -12px -12px 16px; }
  .president__fig { position: static; max-width: 360px; }
  .president__cols { grid-template-columns: 1fr; gap: 28px; }
  .contact-box .tel { font-size: 32px; }
}
@media (max-width: 480px) {
  .services { grid-template-columns: 1fr; }
  .works { grid-template-columns: 1fr 1fr; gap: 14px; }
  .badges li { font-size: 13px; letter-spacing: .08em; padding: 14px 4px; }
  .brand__name { font-size: 17px; }
  .company th { width: 92px; }
}

/* 全体の写しを撮る時だけ（?shot） */
.shot .hero { min-height: 800px; }
.shot .rv { opacity: 1; transform: none; transition: none; }
.shot .hero__bg img { animation: none; }
.shot .header { position: absolute; }