/* 皮港 PiPort · site-v2.css · v3.1「航道蓝图」
   浅底 + 坐标网格 + 航道虚线连接港口节点。
   品牌色（以 LOGO 蓝为主）：LOGO 蓝 #0236AD · 深蓝 #071F55 · 能量橙 #FF8A00（点缀 <10%）· 智慧绿 #00B894 */

:root {
  --navy: #0A2158;
  --navy-2: #061640;
  --cobalt: #0236AD;
  --orange: #FF8A00;
  --green: #00B894;
  --paper: #F7F9FC;
  --card: #FFFFFF;
  --ink: #12233F;
  --muted: #5A6B85;
  --line: #DCE4F0;
  --grid: rgba(2, 54, 173, 0.05);
  --max: 1180px;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(7, 31, 85, 0.09);
  --grid-bg: repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 34px),
             repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 34px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", Inter, system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select { font: inherit; }
h1, h2, h3 { color: var(--navy); letter-spacing: -0.02em; line-height: 1.28; font-weight: 700; }
h1 { font-size: clamp(34px, 5vw, 58px); }
h2 { font-size: clamp(24px, 3.2vw, 36px); }
h3 { font-size: clamp(17px, 2vw, 21px); }
h1 em { font-style: normal; color: var(--cobalt); }
:focus-visible { outline: 3px solid rgba(2, 54, 173, 0.35); outline-offset: 3px; }

.shell { max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; }

/* ---------- 导航 ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(247, 249, 252, 0.9);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-shell { max-width: 1240px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 20px; }
.logo-link { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-link img { height: 40px; width: auto; object-fit: contain; }
.logo-word { font-size: 19px; font-weight: 800; color: var(--navy); letter-spacing: 0.01em; white-space: nowrap; }
.logo-word b { color: var(--cobalt); font-weight: 800; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 4px; font-size: 14px; color: var(--navy); }
.nav-links a:not(.button) { padding: 8px 10px; border-radius: 9px; font-weight: 600; white-space: nowrap; transition: background 0.18s, color 0.18s; }
.nav-links a:not(.button):hover { background: #EAF0FB; color: var(--cobalt); }
.nav-links .button { margin-left: 8px; }
.menu-button { display: none; margin-left: auto; width: 44px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); cursor: pointer; }
.menu-button span { display: block; width: 20px; height: 2px; background: var(--navy); border-radius: 2px; margin: 4px auto; }

/* ---------- 按钮 ---------- */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--cobalt); color: #fff; font-weight: 700; font-size: 15px;
  min-height: 46px; padding: 10px 26px; border-radius: 999px; border: 1.5px solid var(--cobalt);
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s; white-space: nowrap; cursor: pointer;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(2, 54, 173, 0.28); }
.button--small { min-height: 38px; padding: 6px 18px; font-size: 13.5px; }
.button--secondary { background: transparent; color: var(--cobalt); }
.button--ghost { background: transparent; border-color: rgba(255, 255, 255, 0.55); color: #fff; }
.button--ghost:hover { box-shadow: 0 8px 20px rgba(255, 255, 255, 0.14); }
.button--orange { background: var(--orange); border-color: var(--orange); color: #fff; }
.button--orange:hover { box-shadow: 0 8px 20px rgba(255, 138, 0, 0.3); }
.button-row { display: flex; gap: 14px; flex-wrap: wrap; }

.kicker {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; letter-spacing: 0.16em;
  color: var(--cobalt); text-transform: uppercase; margin-bottom: 14px;
}
.kicker::before { content: ""; width: 26px; height: 2px; background: currentColor; }
.kicker--light { color: #9DB8FF; }
.text-link { color: var(--cobalt); font-weight: 600; font-size: 14.5px; }
.text-link:hover { text-decoration: underline; }

/* ---------- 航道图形 ---------- */
.route-art { position: absolute; top: 10px; left: 24px; width: min(640px, calc(100% - 48px)); height: auto; color: var(--cobalt); opacity: 0.45; pointer-events: none; }
.route-art .dot { stroke: #fff; stroke-width: 2; }
.route-art .dot--orange { fill: var(--orange); }
.route-art .dot--cobalt { fill: var(--cobalt); }
.route-art .dot--green { fill: var(--green); }

/* ---------- hero ---------- */
.hero, .page-hero { background: var(--grid-bg), linear-gradient(180deg, #FFFFFF 0%, var(--paper) 100%); border-bottom: 1px solid var(--line); position: relative; }
.hero--home .shell { padding-top: 96px; padding-bottom: 64px; }
.hero-copy { max-width: 780px; position: relative; }
.hero-lead { margin-top: 18px; font-size: clamp(16px, 1.8vw, 19px); color: var(--muted); max-width: 660px; }
.hero-note { margin-top: 16px; font-size: 13.5px; color: var(--muted); letter-spacing: 0.02em; }

.gateway-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; position: relative; }
.gateway-grid--four { grid-template-columns: repeat(4, 1fr); }
.gateway-grid--four .gateway strong { font-size: 16px; }
.gateway {
  background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px 20px 26px; display: flex; flex-direction: column; gap: 5px;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s; position: relative; overflow: hidden;
}
.gateway::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--cobalt); }
.gateway--orange::before { background: var(--orange); }
.gateway:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--cobalt); }
.gateway--orange:hover { border-color: var(--orange); }
.gateway small { font-size: 12.5px; color: var(--muted); letter-spacing: 0.06em; }
.gateway strong { font-size: 18px; color: var(--navy); }
.gateway span { margin-top: 6px; font-size: 13.5px; color: var(--cobalt); font-weight: 600; }
.gateway--orange span { color: var(--orange); }

.page-hero .shell { padding-top: 88px; padding-bottom: 54px; }
.page-hero h1 { max-width: 840px; position: relative; }
.page-hero p { margin-top: 16px; max-width: 720px; color: var(--muted); font-size: clamp(15px, 1.7vw, 18px); position: relative; }
.page-hero .kicker { position: relative; }

/* ---------- 区块 ---------- */
.section { padding: 76px 0; }
.section--fog { background: #EEF2F9; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section--blue { background: var(--navy); color: #E7EEFC; }
.section--navy { background: var(--navy-2); color: #E7EEFC; }
.section--blue h2, .section--navy h2, .section--blue h3, .section--navy h3, .section-head.light h2 { color: #fff; }
.section--blue p, .section--navy p { color: #C4D2EC; }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 16.5px; }
.section-head.light p { color: #C4D2EC; }
.section-action { margin-top: 32px; }
.lead { font-size: clamp(15.5px, 1.8vw, 18px); color: var(--muted); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.three-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.four-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 36px 0; }
.four-cols > div { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.four-cols span { font-size: 12.5px; font-weight: 700; color: var(--orange); display: block; margin-bottom: 8px; }
.four-cols strong { color: var(--navy); display: block; font-size: 16.5px; }
.four-cols small { color: var(--muted); display: block; margin-top: 5px; line-height: 1.6; }

/* ---------- 列表 ---------- */
.check-list { margin: 18px 0; }
.check-list li { position: relative; padding: 9px 0 9px 30px; color: var(--ink); border-bottom: 1px solid var(--line); }
.check-list li::before {
  content: ""; position: absolute; left: 2px; top: 17px; width: 10px; height: 10px; border-radius: 50%;
  border: 2.5px solid var(--green);
}
.check-list--light li { color: #DDE7F8; border-color: rgba(255, 255, 255, 0.2); }
.check-list--light li::before { border-color: var(--orange); }
.check-list--muted li::before { border-color: var(--muted); }

/* ---------- 卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  display: flex; flex-direction: column; gap: 10px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--cobalt); }
.feature-card p { color: var(--muted); font-size: 14.5px; flex: 1; }
.card-index { align-self: flex-start; font-size: 11.5px; font-weight: 800; letter-spacing: 0.09em; color: var(--cobalt); background: #EAF0FB; border-radius: 7px; padding: 4px 9px; }

.two-entry { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.entry-card {
  background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius); padding: 26px;
  display: flex; flex-direction: column; gap: 8px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.entry-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--cobalt); }
.entry-card span { font-size: 11.5px; font-weight: 800; letter-spacing: 0.12em; color: var(--cobalt); }
.entry-card p { color: var(--muted); font-size: 14.5px; flex: 1; }
.entry-card b { color: var(--cobalt); font-size: 14.5px; }

.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.solution-grid--two { grid-template-columns: repeat(2, 1fr); }
.solution-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  display: flex; flex-direction: column; gap: 8px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.solution-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--cobalt); }
.solution-card span { font-size: 11.5px; font-weight: 800; letter-spacing: 0.1em; color: var(--muted); }
.solution-card p { color: var(--muted); font-size: 14.5px; flex: 1; }
.solution-card b { color: var(--cobalt); font-size: 14.5px; font-weight: 600; }

.industry-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.industry-chip {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 15px 13px; min-height: 92px;
  display: flex; flex-direction: column; justify-content: center; gap: 3px; transition: border-color 0.18s, transform 0.18s;
}
.industry-chip:hover { border-color: var(--cobalt); transform: translateY(-2px); }
.industry-chip small { font-size: 11.5px; color: var(--muted); }
.industry-chip strong { font-size: 13.5px; color: var(--navy); line-height: 1.4; }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-grid--single { grid-template-columns: minmax(0, 560px); }
.case-card {
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--green);
  border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 8px;
  transition: transform 0.18s, box-shadow 0.18s;
}
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.case-card span { font-size: 12.5px; color: var(--muted); letter-spacing: 0.04em; }
.case-card p { color: var(--muted); font-size: 14.5px; flex: 1; }
.case-card b { color: var(--cobalt); font-size: 14.5px; font-weight: 600; }
.case-meta { color: var(--muted); font-size: 14px; margin-bottom: 16px; }

.dim-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.dim-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.dim-card span { font-size: 12.5px; font-weight: 700; color: var(--orange); }
.dim-card h3 { margin: 6px 0 8px; }
.dim-card p { color: var(--muted); font-size: 14.5px; }

.matrix { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.matrix > div {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px;
  font-size: 13px; font-weight: 700; color: var(--cobalt);
}
.matrix strong { display: block; color: var(--navy); font-size: 15.5px; margin-top: 5px; line-height: 1.55; font-weight: 700; }
.matrix--four { grid-template-columns: repeat(2, 1fr); }

.route-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 10px; }
.route-grid > div { background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius); padding: 26px; }
.route-grid span { font-weight: 800; color: var(--orange); font-size: 13px; }
.route-grid h3 { margin: 10px 0 6px; }
.route-grid p { font-size: 14px; }
.section--blue .route-grid { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

/* ---------- 流程与层级 ---------- */
.system-flow { display: flex; align-items: stretch; gap: 12px; margin: 30px 0 32px; flex-wrap: wrap; }
.system-flow > div {
  flex: 1; min-width: 160px; background: rgba(255, 255, 255, 0.07); border: 1px dashed rgba(157, 184, 255, 0.55);
  border-radius: 14px; padding: 18px 20px;
}
.system-flow b { display: block; color: #fff; font-size: 15.5px; margin-bottom: 4px; }
.system-flow span { font-size: 13px; color: #AFC4E8; }
.system-flow i { align-self: center; color: var(--orange); font-style: normal; font-weight: 800; font-size: 20px; }

.layer-stack { display: grid; gap: 12px; max-width: 880px; }
.layer-stack > div {
  display: grid; grid-template-columns: 52px 200px 1fr; gap: 18px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--cobalt);
  border-radius: 14px; padding: 18px 24px;
}
.layer-stack span { width: 40px; height: 40px; border-radius: 50%; background: #EAF0FB; color: var(--cobalt); display: grid; place-items: center; font-size: 12.5px; font-weight: 800; }
.layer-stack strong { color: var(--navy); font-size: 17px; }
.layer-stack small { color: var(--muted); font-size: 14px; }

.delivery-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.delivery-steps li { background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--cobalt); border-radius: 12px; padding: 16px 14px; position: relative; }
.delivery-steps li:last-child { border-top-color: var(--orange); }
.delivery-steps span { display: block; font-size: 12px; font-weight: 800; color: var(--cobalt); margin-bottom: 5px; }
.delivery-steps strong { color: var(--navy); font-size: 14.5px; }
.delivery-steps--column { grid-template-columns: 1fr; max-width: 560px; }
.delivery-steps--column li { display: flex; gap: 12px; align-items: baseline; border-top: 1px solid var(--line); border-left: 3px solid var(--cobalt); }
.delivery-steps--column li:last-child { border-top-color: var(--line); border-left-color: var(--orange); }

.stage-list { display: grid; gap: 14px; max-width: 900px; }
.stage-list li {
  display: flex; gap: 18px; align-items: baseline; background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 24px;
}
.stage-list span { font-weight: 800; color: var(--orange); font-size: 13px; flex: none; }
.stage-list strong { color: var(--navy); display: block; margin-bottom: 4px; font-size: 16px; }
.stage-list p { color: var(--muted); font-size: 14.5px; }

.flow-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.flow-row > div { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.flow-row span { display: block; font-size: 12px; font-weight: 800; color: var(--orange); margin-bottom: 5px; }
.flow-row strong { color: var(--navy); font-size: 14.5px; }

/* ---------- GEO 块 ---------- */
.geo-def {
  background: var(--card); border: 1.5px solid var(--cobalt); border-radius: var(--radius);
  padding: 28px 32px; margin-bottom: 36px; position: relative; overflow: hidden;
}
.geo-def::before { content: ""; position: absolute; inset: 0; background: var(--grid-bg); opacity: 0.6; pointer-events: none; }
.geo-def .kicker { position: relative; }
.geo-def p { font-size: clamp(16px, 1.9vw, 19px); color: var(--navy); font-weight: 600; line-height: 1.68; position: relative; }
.geo-def small { display: block; margin-top: 12px; color: var(--muted); font-size: 12.5px; position: relative; }

.faq-list { display: grid; gap: 14px; max-width: 900px; }
.faq-list > div { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 26px; }
.faq-list dt { font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.faq-list dt::before { content: "Q · "; color: var(--cobalt); font-weight: 800; }
.faq-list dd { color: var(--muted); font-size: 14.5px; }
.faq-list dd::before { content: "A · "; color: var(--green); font-weight: 800; }

.related-links { display: flex; gap: 20px; flex-wrap: wrap; align-items: center; margin-bottom: 34px; }
.related-links .kicker { margin-bottom: 0; }
.related-links a { color: var(--cobalt); font-weight: 600; font-size: 14.5px; }
.related-links a:hover { text-decoration: underline; }

/* ---------- 提示块 ---------- */
.notice {
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--cobalt);
  border-radius: 14px; padding: 24px 28px; margin-top: 30px;
}
.notice strong { color: var(--navy); display: block; margin-bottom: 6px; font-size: 16.5px; }
.notice p { color: var(--muted); font-size: 14.5px; }
.notice--risk { border-left-color: var(--orange); }

/* ---------- 联系卡 ---------- */
.contact-card {
  margin-top: 46px; background: var(--navy);
  border-radius: calc(var(--radius) + 6px); padding: 42px 46px; display: grid;
  grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center; color: #E7EEFC;
  position: relative; overflow: hidden;
}
.contact-card::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 34px), repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 34px); pointer-events: none; }
.contact-card h2 { color: #fff; margin-bottom: 10px; }
.contact-card-copy { position: relative; }
.contact-card-copy p { color: #C4D2EC; font-size: 15px; max-width: 540px; }
.contact-links { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 16px; }
.contact-links a { color: #9DB8FF; font-weight: 600; font-size: 14px; }
.contact-links a:hover { color: #fff; }
.contact-card-action { text-align: center; position: relative; }
.phone-cta {
  display: inline-flex; flex-direction: column; gap: 2px; background: var(--orange); color: #fff;
  border-radius: 18px; padding: 18px 36px; transition: transform 0.15s, box-shadow 0.15s;
}
.phone-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 138, 0, 0.35); }
.phone-cta small { font-size: 12.5px; opacity: 0.92; letter-spacing: 0.06em; }
.phone-cta strong { font-size: clamp(22px, 2.6vw, 28px); letter-spacing: 0.04em; }
.contact-note { margin-top: 12px; font-size: 13px; color: #9DB8FF; }

.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact-grid h2 { font-size: 19px; margin: 18px 0 8px; }
.contact-grid p { color: var(--muted); font-size: 14.5px; }
.contact-scenes { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-scenes h2 { margin: 0 0 8px; }
.big-phone { display: inline-block; font-size: clamp(30px, 4.5vw, 44px); font-weight: 800; color: var(--cobalt); letter-spacing: 0.02em; margin: 6px 0; }
.big-phone:hover { text-decoration: underline; }

/* ---------- 区域 ---------- */
.region-teaser { display: grid; grid-template-columns: 1.2fr 1fr; gap: 44px; align-items: center; }
.region-teaser .button { margin-top: 18px; }
.region-nodes { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
.region-nodes span {
  width: 76px; height: 76px; border-radius: 50%; border: 1.5px dashed rgba(157, 184, 255, 0.6);
  display: flex; align-items: center; justify-content: center; font-size: 14px; color: #DDE7F8;
  background: rgba(255, 255, 255, 0.05);
}
.region-nodes span:nth-child(3n+1) { border-color: rgba(255, 138, 0, 0.7); }
.region-nodes span:nth-child(3n) { border-color: rgba(0, 184, 148, 0.7); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.tag-cloud span { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 8px 18px; font-size: 14px; color: var(--navy); font-weight: 600; }

/* ---------- 其他 ---------- */
.job-strip { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.job-strip a {
  background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 12px 26px;
  font-weight: 700; color: var(--navy); font-size: 15px; transition: border-color 0.18s, color 0.18s;
}
.job-strip a:hover { border-color: var(--cobalt); color: var(--cobalt); }
.brand-board img { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); }
.legal-copy { max-width: 800px; }
.legal-copy section { padding: 24px 0; border-bottom: 1px solid var(--line); }
.legal-copy h2 { font-size: 20px; margin-bottom: 8px; }
.legal-copy p { color: var(--muted); }

.not-found { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 80px 24px; background: var(--grid-bg), var(--paper); }
.not-found > div { max-width: 720px; }
.not-found span { font-size: 84px; font-weight: 800; color: var(--cobalt); opacity: 0.3; display: block; line-height: 1.1; }
.not-found h1 { font-size: clamp(26px, 4vw, 40px); margin: 8px 0 10px; }
.not-found p { color: var(--muted); margin-bottom: 22px; }
.not-found .button-row { justify-content: center; margin-bottom: 10px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-2); color: #C4D2EC; margin-top: 84px; }
.footer-grid { max-width: var(--max); margin: 0 auto; padding: 56px 24px 30px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-mark { width: 50px; height: 50px; padding: 7px; border-radius: 13px; background: #fff; display: grid; place-items: center; }
.footer-mark img { width: 100%; height: 100%; object-fit: contain; }
.footer-brand strong { color: #fff; display: block; font-size: 18px; }
.footer-brand small { color: #8FA6CC; font-size: 11.5px; letter-spacing: 0.08em; }
.footer-grid h3 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-grid a { display: block; padding: 4px 0; font-size: 14px; color: #C4D2EC; }
.footer-grid a:hover { color: var(--orange); }
.footer-grid p { font-size: 13.5px; line-height: 1.9; color: #8FA6CC; }
.footer-phone { font-size: 22px !important; font-weight: 800; color: #fff !important; letter-spacing: 0.04em; }
.footer-bottom {
  max-width: var(--max); margin: 0 auto; padding: 18px 24px 30px; border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px; color: #8FA6CC;
}
.footer-bottom a { display: inline; color: #C4D2EC; padding: 0; }

.floating-phone {
  position: fixed; right: 22px; bottom: 26px; z-index: 70; background: var(--orange); color: #fff;
  font-weight: 800; font-size: 14.5px; padding: 13px 22px; border-radius: 999px;
  box-shadow: 0 10px 26px rgba(255, 138, 0, 0.4); transition: transform 0.15s;
}
.floating-phone:hover { transform: translateY(-2px); }

/* ---------- 联系动作与二维码 ---------- */
.contact-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
.feishu-cta {
  display: inline-flex; align-items: center; border: 1.5px solid rgba(255, 255, 255, 0.5); color: #fff;
  border-radius: 999px; padding: 12px 22px; font-weight: 600; font-size: 14.5px; transition: background 0.18s, border-color 0.18s;
}
.feishu-cta:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; }
.qr-figure { display: inline-block; background: #fff; border-radius: 16px; padding: 14px 14px 10px; text-align: center; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18); }
.qr-figure img { width: 206px; height: auto; border-radius: 8px; margin: 0 auto; }
.qr-figure figcaption { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
.qr-figure--light { border: 1px solid var(--line); box-shadow: var(--shadow); margin: 14px 0 20px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .menu-button { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 18px; right: 18px; flex-direction: column; align-items: stretch;
    background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 14px; gap: 2px;
    box-shadow: 0 20px 40px rgba(13, 43, 94, 0.16);
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.button) { padding: 11px 14px; }
  .nav-links .button { margin: 10px 0 0; }
  .feature-grid, .solution-grid, .case-grid, .dim-grid, .three-cols, .route-grid { grid-template-columns: repeat(2, 1fr); }
  .gateway-grid--four { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(4, 1fr); }
  .four-cols { grid-template-columns: repeat(2, 1fr); }
  .delivery-steps { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .layer-stack > div { grid-template-columns: 44px 1fr; }
  .layer-stack small { grid-column: 2; }
}

@media (max-width: 760px) {
  .shell { padding: 0 18px; }
  .hero--home .shell { padding-top: 60px; padding-bottom: 44px; }
  .page-hero .shell { padding-top: 56px; padding-bottom: 40px; }
  .section { padding: 54px 0; }
  .logo-link img { height: 38px; }
  .gateway-grid, .gateway-grid--four, .two-entry, .split, .contact-grid, .region-teaser { grid-template-columns: 1fr; gap: 24px; }
  .logo-word { font-size: 16px; }
  .contact-actions { flex-direction: column; align-items: flex-start; }
  .feature-grid, .solution-grid, .solution-grid--two, .case-grid, .dim-grid, .three-cols, .route-grid, .four-cols, .matrix, .matrix--four, .flow-row { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .delivery-steps { grid-template-columns: 1fr 1fr; }
  .system-flow { flex-direction: column; }
  .system-flow i { transform: rotate(90deg); align-self: flex-start; margin-left: 24px; }
  .contact-card { grid-template-columns: 1fr; padding: 30px 26px; }
  .contact-card-action { text-align: left; }
  .region-nodes { justify-content: flex-start; }
  .region-nodes span { width: 66px; height: 66px; font-size: 13px; }
  .route-art { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; }
  .stage-list li { flex-direction: column; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}