/*
Theme Name: 颐本方官网
Theme URI: http://127.0.0.1:8080/
Author: 颐本方
Description: 颐本方品牌官方网站主题。
Version: 2.0.4
Text Domain: yibenfang-clean
*/

:root {
  --brand-blue: #334155;
  --brand-sky: #0EA5E9;
  --brand-deep: #0F172A;
  --ink: #0F172A;
  --ink-soft: #52606D;
  --paper: #F6F8FB;
  --white: #fff;
  --mist: #EAF3F7;
  --mint: #E9F4F1;
  --amber: #E9785B;
  --line: rgba(51, 65, 85, .15);
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Public Sans", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shadow: 0 30px 80px rgba(15, 23, 42, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: -100px;
  left: 18px;
  padding: 10px 15px;
  color: #fff;
  background: var(--brand-deep);
}
.skip-link:focus { top: 18px; }

.site-nav {
  position: fixed;
  z-index: 30;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 clamp(22px, 5.5vw, 88px);
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
body.admin-bar .site-nav { top: 32px; }
.site-nav.is-scrolled {
  border-color: rgba(7, 52, 84, .09);
  background: rgba(251, 250, 245, .86);
  backdrop-filter: blur(14px);
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--brand-deep);
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
}
.brand-symbol {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--brand-blue);
  border-radius: 50%;
  color: var(--brand-blue);
  font-family: var(--sans);
  font-size: 17px;
}
.brand-mark small {
  margin-left: 5px;
  color: var(--brand-blue);
  font-family: var(--sans);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .15em;
  vertical-align: middle;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(17px, 2.8vw, 38px);
  color: var(--ink-soft);
  font-size: 13px;
}
.nav-links > a:not(.nav-cta) { position: relative; }
.nav-links > a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--brand-blue);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s ease;
}
.nav-links > a:not(.nav-cta):hover::after,
.nav-links > a:not(.nav-cta):focus-visible::after { transform: scaleX(1); }
.nav-cta {
  padding: 9px 15px;
  border-radius: 99px;
  color: #fff;
  background: var(--brand-deep);
  transition: background .18s ease, transform .18s ease;
}
.nav-cta:hover, .nav-cta:focus-visible { background: var(--brand-blue); transform: translateY(-2px); }
.menu-toggle { display: none; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 19px;
  color: var(--brand-blue);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .17em;
  line-height: 1.2;
}
.eyebrow::before { width: 28px; height: 1px; background: currentColor; content: ""; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 700; letter-spacing: -.065em; line-height: 1.1; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--brand-deep);
  border-radius: 99px;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
  transition: color .18s ease, background .18s ease, transform .18s ease;
}
.button:hover, .button:focus-visible { color: #fff; background: var(--brand-deep); transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--brand-deep); }
.button-primary:hover, .button-primary:focus-visible { background: var(--brand-blue); }
.button-light { border-color: rgba(255,255,255,.6); color: #fff; }
.button-light:hover, .button-light:focus-visible { color: var(--brand-deep); background: #fff; }
.text-link {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
}
.text-link span { color: var(--brand-blue); transition: transform .18s ease; }
.text-link:hover span, .text-link:focus-visible span { transform: translateX(4px); }

.brand-hero {
  position: relative;
  display: grid;
  min-height: min(820px, 100vh);
  grid-template-columns: minmax(0, .98fr) minmax(420px, 1.02fr);
  gap: 6vw;
  overflow: hidden;
  padding: 154px clamp(22px, 8vw, 140px) 82px;
  background:
    radial-gradient(circle at 96% 10%, rgba(88,194,230,.18), transparent 32%),
    linear-gradient(121deg, #fbfaf5 0%, #f3f6f4 54%, #e2f2f8 100%);
}
.brand-hero::before {
  position: absolute;
  top: 21%;
  left: -10%;
  width: 48vw;
  aspect-ratio: 1;
  border: 1px solid rgba(8,123,184,.12);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(8,123,184,.025), 0 0 0 150px rgba(8,123,184,.018);
  content: "";
}
.brand-hero-copy {
  position: relative;
  z-index: 1;
  align-self: center;
  max-width: 670px;
}
.brand-hero h1 {
  margin-bottom: 30px;
  font-size: clamp(52px, 6.9vw, 110px);
}
.brand-hero-copy > p:not(.eyebrow) {
  max-width: 460px;
  margin-bottom: 32px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.9;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.brand-hero-art {
  position: relative;
  min-height: 520px;
  align-self: center;
}
.hero-orbit {
  position: absolute;
  border: 1px solid rgba(8,123,184,.22);
  border-radius: 50%;
}
.hero-orbit-one { inset: 1% 2% 6% 8%; }
.hero-orbit-two { inset: 13% 14% 18% 20%; border-color: rgba(8,123,184,.18); }
.hero-card {
  position: absolute;
  display: flex;
  width: clamp(145px, 16vw, 216px);
  aspect-ratio: .74;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(16px, 2vw, 25px);
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 7px 7px 38px 7px;
  box-shadow: var(--shadow);
  transform: rotate(var(--rotate));
}
.hero-card span { font-size: 11px; font-weight: 700; letter-spacing: .14em; }
.hero-card b { font-family: var(--serif); font-size: clamp(23px, 2.5vw, 38px); letter-spacing: -.09em; line-height: .85; }
.hero-card i { font-size: 11px; font-style: normal; }
.hero-card-blue { --rotate: -13deg; top: 14%; left: 5%; color: #fff; background: linear-gradient(148deg, #063e70, #1bb2de); }
.hero-card-amber { --rotate: 8deg; top: 37%; right: 2%; color: #59411b; background: linear-gradient(145deg, #fff1ce, #e4ae4b); }
.hero-card-green { --rotate: -3deg; right: 30%; bottom: 1%; color: #204738; background: linear-gradient(150deg, #f0fff4, #8fcab2); }
.brand-hero-art > p {
  position: absolute;
  top: 7%;
  right: 4%;
  margin: 0;
  color: rgba(7,52,84,.28);
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 70px);
  font-weight: 700;
  letter-spacing: -.09em;
  line-height: .84;
  text-align: right;
}
.brand-hero-art > p em { color: var(--brand-blue); font-family: var(--sans); font-size: 10px; font-style: normal; letter-spacing: .2em; }

.content-section, .product-section, .cooperation-band { padding-right: clamp(22px, 8vw, 140px); padding-left: clamp(22px, 8vw, 140px); }
.brand-intro {
  display: grid;
  grid-template-columns: 1fr .88fr;
  gap: 10vw;
  padding-top: clamp(92px, 13vw, 168px);
  padding-bottom: clamp(92px, 13vw, 168px);
  background: var(--paper);
}
.brand-intro h2, .section-heading h2 { margin-bottom: 0; font-size: clamp(42px, 5.2vw, 76px); }
.brand-intro-copy { align-self: end; padding-bottom: 7px; }
.brand-intro-copy > p { max-width: 480px; margin-bottom: 25px; color: var(--ink-soft); font-size: 16px; line-height: 1.95; }

.product-section { padding-top: clamp(86px, 11vw, 146px); padding-bottom: clamp(86px, 11vw, 146px); background: #eef5f6; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 60px; }
.section-heading .text-link { margin-bottom: 10px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2.5vw, 34px); }
.product-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(7,52,84,.08);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 13px 30px rgba(7,52,84,.05);
  transition: transform .25s ease, box-shadow .25s ease;
}
.product-card:hover { box-shadow: 0 23px 46px rgba(7,52,84,.13); transform: translateY(-6px); }
.product-art {
  position: relative;
  display: flex;
  height: clamp(270px, 31vw, 400px);
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  padding: 22px;
}
.product-art::before {
  position: absolute;
  top: 11%;
  left: 13%;
  width: 74%;
  aspect-ratio: 1;
  border-radius: 50%;
  content: "";
}
.product-art > span { position: absolute; z-index: 1; top: 20px; left: 22px; font-size: 10px; font-weight: 700; letter-spacing: .11em; }
.product-art > img { position: relative; z-index: 1; width: 80%; max-height: 94%; object-fit: contain; mix-blend-mode: multiply; transform: translateY(12px); }
.product-art > b { position: relative; z-index: 1; font-family: var(--serif); font-size: clamp(38px, 4.8vw, 67px); letter-spacing: -.1em; line-height: .8; text-align: center; }
.product-card-blue .product-art { background: linear-gradient(140deg, #e9f8fd, #b9e2ef); color: #074a70; }
.product-card-blue .product-art::before { border: 1px solid rgba(8,123,184,.24); box-shadow: 0 0 0 35px rgba(255,255,255,.18); }
.product-card-amber .product-art { background: linear-gradient(140deg, #fff7e7, #f2ce86); color: #6e4a0b; }
.product-card-amber .product-art::before { background: rgba(255,255,255,.34); }
.product-card-green .product-art { background: linear-gradient(140deg, #eff9f2, #b9dfcb); color: #174835; }
.product-card-green .product-art::before { border: 18px solid rgba(255,255,255,.28); }
.product-card-copy { padding: 25px clamp(20px, 2.5vw, 30px) 29px; }
.product-card-copy > p:first-child { margin-bottom: 10px; color: var(--brand-blue); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.product-card h3, .product-card h2 { margin-bottom: 13px; font-family: var(--serif); font-size: clamp(25px, 2.4vw, 34px); letter-spacing: -.06em; line-height: 1.12; }
.product-summary { min-height: 48px; margin-bottom: 21px; color: var(--ink-soft); font-size: 13px; }

.quality-section {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  min-height: 700px;
  color: #fff;
  background: var(--brand-deep);
}
.quality-art {
  position: relative;
  display: grid;
  min-height: 500px;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(147deg, #03547f, #0f9cc8);
}
.quality-art::before, .quality-art::after { position: absolute; border: 1px solid rgba(255,255,255,.36); border-radius: 50%; content: ""; }
.quality-art::before { width: 67%; aspect-ratio: 1; box-shadow: 0 0 0 55px rgba(255,255,255,.06), 0 0 0 130px rgba(255,255,255,.04); }
.quality-art::after { width: 35%; aspect-ratio: 1; border-style: dashed; }
.quality-art p { position: relative; z-index: 1; margin: 0; font-family: var(--serif); font-size: clamp(47px, 6vw, 86px); font-weight: 700; letter-spacing: -.1em; line-height: .76; text-align: center; }
.quality-art p em { color: #cdeffa; font-family: var(--sans); font-size: 10px; font-style: normal; letter-spacing: .18em; }
.quality-art > span { position: absolute; right: 11%; bottom: 11%; color: rgba(255,255,255,.48); font-family: var(--serif); font-size: 26px; font-weight: 700; }
.quality-copy { align-self: center; max-width: 640px; padding: clamp(80px, 10vw, 150px) clamp(30px, 8vw, 140px); }
.quality-copy .eyebrow { color: #92d8ec; }
.quality-copy h2 { margin-bottom: 25px; font-size: clamp(46px, 5.4vw, 79px); }
.quality-copy > p:not(.eyebrow) { max-width: 470px; color: rgba(255,255,255,.7); font-size: 16px; line-height: 1.95; }
.quality-copy ul { margin: 34px 0 31px; padding: 0; list-style: none; }
.quality-copy li { display: grid; grid-template-columns: 25px 1fr; gap: 16px; padding: 15px 0; border-top: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.82); font-size: 14px; }
.quality-copy li:last-child { border-bottom: 1px solid rgba(255,255,255,.18); }
.quality-copy li b { color: #8edcf2; font-size: 11px; }

.cooperation-band {
  display: grid;
  grid-template-columns: 1fr .75fr;
  gap: 10vw;
  align-items: end;
  padding-top: clamp(92px, 12vw, 160px);
  padding-bottom: clamp(92px, 12vw, 160px);
  background: #f1eee5;
}
.cooperation-band h2 { margin-bottom: 0; color: var(--brand-deep); font-size: clamp(44px, 5vw, 73px); }
.cooperation-band > div:last-child p { max-width: 420px; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }

.site-footer {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 28px 50px;
  padding: 55px clamp(22px, 8vw, 140px) 30px;
  color: rgba(255,255,255,.7);
  background: #06243a;
}
.footer-brand { color: #fff; font-family: var(--serif); font-size: 24px; font-weight: 700; }
.footer-brand span { margin-left: 7px; color: #78cbe5; font-family: var(--sans); font-size: 9px; letter-spacing: .16em; }
.site-footer p { margin: 8px 0 0; font-size: 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: end; gap: 9px 23px; font-size: 12px; }
.site-footer nav a:hover { color: #9cdcf0; }
.footer-note { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.48); }
.footer-copyright { color: rgba(255,255,255,.45); }

.page-hero {
  min-height: 530px;
  padding: 177px clamp(22px, 14vw, 240px) 90px;
  background:
    radial-gradient(circle at 80% 18%, rgba(14,165,233,.12), transparent 24%),
    linear-gradient(135deg, var(--paper), var(--surface));
}
.page-hero h1 { max-width: 860px; margin-bottom: 26px; font-size: clamp(52px, 6.7vw, 100px); }
.page-hero > p:not(.eyebrow) { max-width: 530px; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
.page-hero-brand,
.page-hero-products,
.page-hero-quality,
.page-hero-cooperation {
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 18%, rgba(14,165,233,.12), transparent 24%),
    linear-gradient(135deg, var(--paper), var(--surface));
}
.page-hero-quality .eyebrow { color: var(--brand-blue); }
.page-hero-quality > p:not(.eyebrow) { color: var(--ink-soft); }
.page-hero-product { min-height: 460px; }
.product-tone-blue { background: linear-gradient(140deg, #effbff, #c7e7f0); }
.product-tone-amber { background: linear-gradient(140deg, #fff9eb, #f1d395); }
.product-tone-green { background: linear-gradient(140deg, #eff8ef, #bfddc5); }

.principles { display: grid; grid-template-columns: .9fr 1.2fr; gap: 9vw; padding-top: 120px; padding-bottom: 130px; }
.principles h2, .contact-intro h2 { margin-bottom: 0; font-size: clamp(42px, 5vw, 72px); }
.principle-list { display: grid; }
.principle-list article { display: grid; grid-template-columns: 42px 1fr; column-gap: 18px; padding: 24px 0; border-top: 1px solid var(--line); }
.principle-list article:last-child { border-bottom: 1px solid var(--line); }
.principle-list span, .trust-grid span { color: var(--brand-blue); font-size: 11px; font-weight: 700; }
.principle-list h3 { grid-column: 2; margin-bottom: 7px; font-family: var(--serif); font-size: 26px; letter-spacing: -.06em; }
.principle-list p { grid-column: 2; max-width: 440px; margin-bottom: 0; color: var(--ink-soft); font-size: 14px; }

.product-collection { padding-top: 90px; padding-bottom: 130px; }
.product-grid-page { max-width: 1240px; margin: 0 auto; }
.trust-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; padding-top: 110px; padding-bottom: 110px; background: var(--line); }
.trust-grid article { min-height: 260px; padding: 28px; background: var(--paper); }
.trust-grid h2 { margin: 42px 0 10px; font-size: 25px; }
.trust-grid p { margin-bottom: 0; color: var(--ink-soft); font-size: 13px; }
.evidence-note { max-width: 980px; margin: 0 auto 130px; padding: 50px clamp(24px, 6vw, 80px); border-radius: 18px; color: #fff; background: var(--brand-deep); }
.evidence-note .eyebrow { color: #9ddff0; }
.evidence-note h2 { margin-bottom: 14px; font-size: 37px; }
.evidence-note p:not(.eyebrow) { max-width: 720px; margin-bottom: 0; color: rgba(255,255,255,.72); font-size: 14px; line-height: 1.9; }

.contact-layout { display: grid; grid-template-columns: .75fr 1fr; gap: 11vw; padding-top: 110px; padding-bottom: 130px; }
.contact-intro > p:not(.eyebrow) { max-width: 350px; color: var(--ink-soft); font-size: 15px; }
.cooperation-form { display: grid; gap: 19px; }
.cooperation-form label { display: grid; gap: 7px; color: var(--brand-deep); font-size: 13px; font-weight: 700; }
.cooperation-form input, .cooperation-form textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 5px;
  outline: none;
  color: var(--ink);
  background: #fff;
  font-size: 15px;
  font-weight: 400;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.cooperation-form input:focus, .cooperation-form textarea:focus { border-color: var(--brand-blue); box-shadow: 0 0 0 3px rgba(8,123,184,.12); }
.cooperation-form textarea { resize: vertical; }
.cooperation-form .button { justify-self: start; border: 0; cursor: pointer; }
.form-notice { margin: 0 0 20px; padding: 12px 14px; border-left: 3px solid #d78832; color: #734308; background: #fff4db; font-size: 13px; }
.form-notice-success { border-color: #278567; color: #15523f; background: #e8f7ef; }

.product-detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 9vw; align-items: center; padding-top: 105px; padding-bottom: 135px; }
.detail-visual { display: grid; min-height: 500px; place-items: center; overflow: hidden; border-radius: 20px; }
.detail-visual img { width: 72%; max-height: 470px; object-fit: contain; mix-blend-mode: multiply; }
.detail-visual span { color: rgba(7,52,84,.63); font-family: var(--serif); font-size: clamp(90px, 13vw, 175px); font-weight: 700; letter-spacing: -.12em; line-height: .8; text-align: center; }
.detail-copy { max-width: 520px; }
.detail-copy h2 { margin-bottom: 35px; font-size: clamp(36px, 4vw, 57px); }
.detail-copy dl { margin: 0 0 35px; }
.detail-copy dl > div { display: grid; grid-template-columns: 95px 1fr; gap: 17px; padding: 17px 0; border-top: 1px solid var(--line); }
.detail-copy dl > div:last-child { border-bottom: 1px solid var(--line); }
.detail-copy dt { color: var(--brand-blue); font-size: 13px; font-weight: 700; }
.detail-copy dd { margin: 0; color: var(--ink-soft); font-size: 14px; }

[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .72s ease, transform .72s cubic-bezier(.2,.75,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .brand-hero { grid-template-columns: minmax(0, .95fr) minmax(330px, .85fr); padding-right: clamp(22px, 5vw, 62px); padding-left: clamp(22px, 5vw, 62px); }
  .brand-hero-art { min-height: 450px; }
  .quality-section { grid-template-columns: .85fr 1.15fr; }
  .quality-copy { padding-right: clamp(30px, 5vw, 60px); padding-left: clamp(30px, 5vw, 60px); }
  .content-section, .product-section, .cooperation-band { padding-right: clamp(22px, 5vw, 62px); padding-left: clamp(22px, 5vw, 62px); }
  .page-hero { padding-right: clamp(22px, 8vw, 80px); padding-left: clamp(22px, 8vw, 80px); }
  .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  body.admin-bar .site-nav { top: 46px; }
  .site-nav { height: 66px; padding: 0 20px; }
  .brand-mark { font-size: 20px; }
  .brand-mark small { display: none; }
  .menu-toggle {
    display: inline-flex;
    padding: 8px 0;
    border: 0;
    color: var(--brand-deep);
    background: transparent;
    font-size: 12px;
    font-weight: 700;
  }
  .nav-links {
    position: absolute;
    top: 66px;
    right: 12px;
    left: 12px;
    display: grid;
    gap: 0;
    padding: 9px;
    border: 1px solid rgba(7,52,84,.1);
    border-radius: 12px;
    background: rgba(255,255,255,.97);
    box-shadow: 0 16px 35px rgba(7,52,84,.14);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-9px);
    transition: opacity .18s ease, transform .18s ease;
  }
  .nav-links.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .nav-links > a { padding: 12px; }
  .nav-links > a:not(.nav-cta)::after { display: none; }
  .nav-cta { text-align: center; }
  .brand-hero { display: block; min-height: 780px; padding: 122px 22px 40px; }
  .brand-hero-copy { max-width: 590px; }
  .brand-hero h1 { font-size: clamp(48px, 14vw, 72px); }
  .brand-hero-copy > p:not(.eyebrow) { font-size: 15px; }
  .brand-hero-art { min-height: 370px; margin-top: 18px; }
  .hero-card { width: 138px; padding: 15px; }
  .hero-card b { font-size: 26px; }
  .hero-card-blue { top: 6%; left: 2%; }
  .hero-card-amber { top: 29%; right: 2%; }
  .hero-card-green { right: 30%; bottom: 0; }
  .brand-hero-art > p { top: 4%; right: 0; font-size: 46px; }
  .brand-intro, .principles, .contact-layout, .product-detail, .cooperation-band { grid-template-columns: 1fr; gap: 35px; }
  .brand-intro { padding-top: 85px; padding-bottom: 85px; }
  .brand-intro h2, .section-heading h2, .principles h2, .contact-intro h2 { font-size: clamp(39px, 12vw, 56px); }
  .section-heading { display: block; margin-bottom: 35px; }
  .section-heading .text-link { margin-top: 23px; margin-bottom: 0; }
  .product-grid, .trust-grid { grid-template-columns: 1fr; }
  .product-art { height: 330px; }
  .product-grid { gap: 18px; }
  .quality-section { grid-template-columns: 1fr; }
  .quality-art { min-height: 340px; }
  .quality-copy { padding: 74px 22px 85px; }
  .quality-copy h2 { font-size: clamp(43px, 13vw, 60px); }
  .cooperation-band { padding-top: 84px; padding-bottom: 84px; }
  .site-footer { grid-template-columns: 1fr; padding: 46px 22px 28px; }
  .site-footer nav { justify-content: start; }
  .page-hero { min-height: 440px; padding: 130px 22px 64px; }
  .page-hero h1 { font-size: clamp(46px, 13vw, 67px); }
  .page-hero > p:not(.eyebrow) { font-size: 15px; }
  .principles, .product-collection, .contact-layout { padding-top: 80px; padding-bottom: 85px; }
  .trust-grid { padding: 22px; background: var(--paper); }
  .trust-grid article { min-height: 0; padding: 25px 0; border-bottom: 1px solid var(--line); }
  .trust-grid article:last-child { border-bottom: 0; }
  .trust-grid h2 { margin-top: 23px; }
  .evidence-note { margin: 0 22px 80px; padding: 35px 25px; }
  .product-detail { padding-top: 70px; padding-bottom: 85px; }
  .detail-visual { min-height: 360px; }
  .detail-copy h2 { font-size: clamp(36px, 11vw, 52px); }
}