:root {
  color-scheme: light;
  --navy: #082d57;
  --blue: #0a4f9c;
  --blue-bright: #176fc1;
  --red: #df263b;
  --ink: #14273a;
  --muted: #5e7082;
  --line: #dbe5ee;
  --ice: #edf5fb;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(8, 45, 87, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 99; padding: 10px 14px; background: var(--navy); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #ffb000; outline-offset: 4px; }

.site-header { position: relative; z-index: 10; border-bottom: 1px solid rgba(219, 229, 238, .9); background: rgba(255, 255, 255, .96); }
.nav-row { min-height: 86px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; margin-right: auto; flex-shrink: 0; }
.brand img { width: 58px; height: 58px; border-radius: 50%; }
.brand strong, .brand small { display: block; }
.brand strong { color: var(--navy); font-size: 1.08rem; letter-spacing: .04em; }
.brand small { color: var(--muted); font-size: .82rem; }
.nav-main { display: flex; gap: 22px; }
.nav-main a { text-decoration: none; font-size: .92rem; color: #354b60; }
.nav-main a:hover { color: var(--blue); }
.menu-toggle { display: none; border: 1px solid var(--line); border-radius: 8px; background: white; color: var(--navy); padding: 8px 12px; font: inherit; font-weight: 700; }
.nav-call { padding: 11px 18px; border-radius: 999px; background: var(--navy); color: white; text-decoration: none; font-weight: 700; }

.hero { position: relative; overflow: hidden; min-height: 660px; display: grid; align-items: center; background: linear-gradient(120deg, #f8fbfe 0%, #e8f3fa 55%, #d9ebf7 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 430px; height: 430px; right: -100px; top: -170px; border: 80px solid rgba(10, 79, 156, .1); }
.hero::after { width: 260px; height: 260px; left: 45%; bottom: -190px; border: 55px solid rgba(223, 38, 59, .08); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); gap: 72px; align-items: center; padding-block: 80px; }
.eyebrow, .section-label { margin: 0 0 12px; color: var(--red); font-size: .82rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 24px; color: var(--navy); font-size: clamp(2.7rem, 5.6vw, 5.3rem); line-height: 1.08; letter-spacing: -.05em; }
h1 span { color: var(--blue); }
h2 { margin-bottom: 0; color: var(--navy); font-size: clamp(2rem, 3.6vw, 3.2rem); line-height: 1.18; letter-spacing: -.035em; }
.hero-lede { max-width: 670px; margin-bottom: 32px; color: #415a70; font-size: 1.14rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 22px; border-radius: 8px; text-decoration: none; font-weight: 800; }
.button-primary { background: var(--red); color: white; box-shadow: 0 12px 26px rgba(223, 38, 59, .2); }
.button-secondary { border: 1px solid #9fb5c7; background: rgba(255,255,255,.7); color: var(--navy); }
.trust-list { display: flex; flex-wrap: wrap; gap: 22px 36px; margin: 0; }
.trust-list div { min-width: 145px; }
.trust-list dt { color: var(--muted); font-size: .78rem; }
.trust-list dd { margin: 0; color: var(--navy); font-size: .94rem; font-weight: 800; }
.hero-visual { position: relative; margin: 0; overflow: hidden; border: 8px solid rgba(255,255,255,.82); border-radius: 20px; background: #cfdeea; box-shadow: var(--shadow); transform: rotate(1.6deg); }
.hero-visual img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.hero-visual figcaption { display: flex; justify-content: space-between; gap: 16px; padding: 12px 14px; background: rgba(255,255,255,.94); color: var(--muted); font-size: .75rem; }
.hero-visual figcaption span { color: var(--navy); font-weight: 900; }
.scenic-carousel { transform: none; }
.scenic-slide[hidden], .carousel-controls[hidden] { display: none; }
.scenic-slide { margin: 0; }
.scenic-slide img[hidden], .photo-unavailable[hidden] { display: none; }
.photo-unavailable { aspect-ratio: 16 / 9; display: grid; place-items: center; margin: 0; padding: 24px; text-align: center; background: var(--ice); color: var(--muted); }
.scenic-slide figcaption { flex-direction: column; gap: 3px; font-size: .875rem; }
.photo-credit { padding: 0 14px 12px; margin: 0; background: white; color: var(--muted); font-size: .75rem; overflow-wrap: anywhere; }
.photo-credit a { text-underline-offset: 3px; }
.carousel-controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; padding: 12px; background: white; border-top: 1px solid var(--line); }
.carousel-controls button { min-height: 44px; min-width: 44px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; background: white; color: var(--navy); font: inherit; font-size: .875rem; cursor: pointer; }
.carousel-controls button[aria-pressed="true"] { background: var(--navy); color: white; }
.contact-actions strong { overflow-wrap: anywhere; }

@media (min-width: 901px) and (max-width: 1200px) {
  .nav-row { flex-wrap: wrap; padding-block: 12px; gap: 16px; }
  .nav-main { order: 3; width: 100%; justify-content: center; }
}

.fact-band { background: var(--navy); color: white; }
.fact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; padding-block: 46px; }
.fact-band h2 { color: white; font-size: clamp(1.7rem, 2.7vw, 2.45rem); }
.fact-band p:last-child { margin: 0; color: #cfdeeb; }
.section { padding-block: 96px; }
.section-intro { max-width: 760px; margin-bottom: 48px; }
.section-intro > p:last-child { margin: 20px 0 0; color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-grid article { min-height: 270px; padding: 28px 24px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(180deg, white, #f8fbfd); }
.service-grid article > span { color: var(--red); font-size: .78rem; font-weight: 900; letter-spacing: .13em; }
.service-grid h3, .region-grid h3, .process-list h3 { margin: 28px 0 12px; color: var(--navy); font-size: 1.22rem; }
.service-grid p, .region-grid p, .process-list p { margin-bottom: 0; color: var(--muted); }
.regions { position: relative; overflow: hidden; background: var(--navy); color: white; }
.regions::before { content: "东北 / NORTHEAST"; position: absolute; right: -30px; top: 10px; color: rgba(255,255,255,.035); font-size: clamp(5rem, 13vw, 11rem); font-weight: 900; line-height: 1; white-space: nowrap; }
.section-intro-light { position: relative; }
.section-intro-light h2 { color: white; }
.section-intro-light > p:last-child { color: #bed0df; }
.region-grid { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.region-card { min-height: 350px; display: flex; flex-direction: column; padding: 30px; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; background: linear-gradient(145deg, rgba(255,255,255,.10), rgba(255,255,255,.035)); }
.region-card h3 { margin: 46px 0 10px; color: white; font-size: 2rem; }
.region-card p { color: #c5d6e4; }
.region-card > span { margin-top: auto; padding-top: 28px; color: white; font-size: .86rem; font-weight: 800; letter-spacing: .08em; }
.region-index { margin: 0; color: #6fa7d5 !important; font-size: .82rem; font-weight: 800; }
.region-liaoning { border-top: 4px solid #df263b; }
.region-jilin { border-top: 4px solid #76a995; }
.region-heilongjiang { border-top: 4px solid #b7d4ea; }
.process-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: start; }
.process-heading { position: sticky; top: 32px; }
.process-heading > p:not(.section-label) { margin: 22px 0; color: var(--muted); }
.text-link { color: var(--blue); font-weight: 900; text-underline-offset: 5px; }
.process-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 54px 1fr; gap: 22px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.process-list li > span { color: var(--red); font-size: .84rem; font-weight: 900; }
.process-list h3 { margin: 0 0 6px; }
.process-list p { margin-top: 0; }
.about { background: #f6f9fc; }
.about-grid { display: grid; grid-template-columns: .5fr 1.5fr; gap: 80px; align-items: center; }
.about-grid > div:last-child { max-width: 760px; }
.about-grid > div:last-child > p:not(.section-label) { color: var(--muted); }
.about-stamp { width: 230px; aspect-ratio: 1; display: grid; align-content: center; justify-items: center; border: 1px solid #b9ccdc; border-radius: 50%; color: var(--navy); background: white; box-shadow: var(--shadow); }
.about-stamp span, .about-stamp small { color: var(--muted); }
.about-stamp strong { font-size: 2rem; }
.split-heading, .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.credential-card { padding: 34px; border: 1px solid var(--line); border-top: 4px solid var(--blue); border-radius: 14px; background: white; box-shadow: 0 16px 50px rgba(8,45,87,.08); }
.legal-name { color: var(--navy); font-size: 1.25rem; font-weight: 900; }
.credential-card dl { margin: 0; }
.credential-card dl div { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 15px 0; border-top: 1px solid var(--line); }
.credential-card dt { color: var(--muted); }
.credential-card dd { margin: 0; color: var(--ink); font-weight: 700; }
.contact { background: var(--ice); }
.contact-actions { display: grid; gap: 14px; }
.contact-actions a { display: flex; justify-content: space-between; gap: 28px; padding: 20px 24px; border-radius: 10px; background: white; color: var(--navy); text-decoration: none; box-shadow: 0 12px 32px rgba(8,45,87,.08); }
.contact-actions span { color: var(--muted); }
.site-footer { padding-block: 32px; background: #061f3a; color: #c3d1de; }
.footer-row { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; font-size: .88rem; }
.footer-row p { margin: 0; }
.footer-row a { color: white; }
.mobile-call { display: none; }

@media (max-width: 900px) {
  .nav-row { flex-wrap: wrap; padding-block: 12px; }
  .nav-main { order: 3; width: 100%; justify-content: space-between; padding: 10px 0 2px; border-top: 1px solid var(--line); }
  .nav-call { font-size: .86rem; }
  .hero { min-height: auto; }
  .hero-grid, .fact-grid, .split-heading, .contact-grid, .process-layout, .about-grid { grid-template-columns: 1fr; gap: 38px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .process-heading { position: static; }
  .hero-visual { width: min(640px, 96%); margin-inline: auto; transform: none; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 1180px); }
  .site-header .brand small { display: none; }
  .brand img { width: 48px; height: 48px; }
  .brand { flex-shrink: 1; min-width: 0; gap: 8px; }
  .brand strong { font-size: .94rem; }
  .nav-row { gap: 12px; }
  .brand img { flex-shrink: 0; }
  .nav-call { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-main { gap: 13px; overflow-x: auto; }
  .nav-main a { white-space: nowrap; }
  .js .nav-main { display: none; }
  .js .nav-main.nav-open { display: flex; }
  .hero-grid { padding-block: 58px; }
  h1 { font-size: clamp(2.2rem, 11vw, 3.2rem); }
  .hero-actions { align-items: stretch; }
  .button { width: 100%; }
  .trust-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .section { padding-block: 70px; }
  .service-grid, .region-grid { grid-template-columns: 1fr; }
  .service-grid article { min-height: auto; }
  .region-card { min-height: 300px; }
  .about-stamp { width: 190px; }
  .credential-card { padding: 24px 20px; }
  .credential-card dl div { grid-template-columns: 1fr; gap: 3px; }
  .contact-actions a { flex-direction: column; gap: 2px; }
  .site-footer { padding-bottom: 88px; }
  .mobile-call { position: fixed; z-index: 30; left: 14px; right: 14px; bottom: 12px; min-height: 52px; display: flex; align-items: center; justify-content: center; border-radius: 10px; background: var(--red); color: white; text-decoration: none; font-weight: 900; box-shadow: 0 14px 32px rgba(15,39,61,.28); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
