/*
Theme Name: Kanglong Network
Theme URI: https://chinaiqffreezer.com/
Author: Kanglong
Description: Industrial WordPress theme for the Kanglong IQF equipment and processing solution network.
Version: 1.2.0
Requires at least: 6.6
Requires PHP: 8.1
Text Domain: kanglong-network
*/

:root {
  --kn-ink: #102033;
  --kn-muted: #5d7085;
  --kn-line: #d7e5ef;
  --kn-surface: #f3f8fc;
  --kn-ice: #e6f6ff;
  --kn-primary: #1677b9;
  --kn-primary-dark: #0b5f91;
  --kn-accent: #2cb7d9;
  --kn-white: #fff;
  --kn-shadow: 0 18px 50px rgba(16, 32, 51, .12);
  --kn-radius: 8px;
  --kn-width: 1240px;
}

.network-solutions {
  --kn-primary: #087f74;
  --kn-primary-dark: #05665e;
  --kn-accent: #e2a93b;
  --kn-ice: #e8f7f3;
  --kn-surface: #f2f8f6;
}

* { box-sizing: border-box; }
html { max-width: 100%; overflow-x: clip; scroll-behavior: smooth; }
body { max-width: 100%; margin: 0; overflow-x: clip; color: var(--kn-ink); background: #fff; font-family: Arial, Helvetica, sans-serif; line-height: 1.65; }
body.admin-bar .kn-header { top: 32px; }
a { color: var(--kn-primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
img { display: block; max-width: 100%; height: auto; }
.kn-container { width: min(var(--kn-width), calc(100% - 40px)); margin: 0 auto; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.screen-reader-text:focus { position: fixed; z-index: 9999; top: 12px; left: 12px; width: auto; height: auto; clip: auto; padding: 12px 16px; background: #fff; }

.kn-topbar { background: var(--kn-ink); color: rgba(255,255,255,.82); font-size: 12px; }
.kn-topbar-inner { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.kn-topbar a { color: #fff; text-decoration: none; }
.kn-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--kn-line); backdrop-filter: blur(14px); }
.kn-header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.kn-brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 14px; max-width: 405px; color: var(--kn-ink); text-decoration: none; }
.kn-brand img { width: 205px; max-width: 42vw; height: auto; max-height: 52px; object-fit: contain; }
.kn-brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--kn-primary); color: #fff; font-weight: 900; }
.kn-brand-copy { min-width: 142px; }
.kn-brand-copy strong { display: block; font-size: 17px; line-height: 1.08; white-space: nowrap; }
.kn-brand-copy small { display: block; margin-top: 5px; color: var(--kn-muted); font-size: 9px; line-height: 1.3; letter-spacing: .055em; text-transform: uppercase; }
.kn-nav { display: flex; flex: 0 1 auto; align-items: center; justify-content: flex-end; gap: 18px; }
.kn-nav ul { display: flex; align-items: center; gap: clamp(13px, 1.4vw, 22px); list-style: none; margin: 0; padding: 0; }
.kn-nav a { color: var(--kn-ink); text-decoration: none; font-size: 13px; font-weight: 700; white-space: nowrap; }
.kn-nav a:hover, .kn-nav .current-menu-item > a { color: var(--kn-primary); }
.kn-nav-cta, .wp-element-button, .wp-block-button__link { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 18px; border: 0; border-radius: 6px; color: #fff !important; background: var(--kn-primary); font-weight: 800; line-height: 1.2; text-align: center; text-decoration: none; }
.kn-nav > .kn-nav-cta { max-width: 178px; font-size: 12px; white-space: normal; }
.kn-nav-cta:hover, .wp-element-button:hover, .wp-block-button__link:hover { background: var(--kn-primary-dark); }
.kn-menu-toggle { display: none; border: 1px solid var(--kn-line); background: #fff; border-radius: 6px; min-width: 44px; min-height: 44px; font-size: 22px; }

.kn-main { min-height: 60vh; }
.kn-content > section, .kn-article-content > section { padding: 78px max(20px, calc((100vw - var(--kn-width)) / 2)); }
.kn-content > section:nth-child(even) { background: var(--kn-surface); }
.network-hero { position: relative; isolation: isolate; min-height: clamp(590px, 72vh, 720px); display: grid; align-content: center; overflow: hidden; color: #fff; background: #0d2941; }
.network-hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: url("assets/hero-equipment.webp") center/cover no-repeat; }
.network-solutions .network-hero::before { background-image: url("assets/hero-solutions.webp"); }
.network-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(8, 28, 45, .76); }
.network-solutions .network-hero::after { background: rgba(4, 39, 38, .78); }
.network-hero > * { width: min(780px, 100%); }
.network-hero .eyebrow { color: #8bd7f5; }
.network-solutions .network-hero .eyebrow { color: #93e1d5; }
.network-hero h1 { margin: 14px 0 22px; max-width: 14ch; color: #fff; font-size: clamp(48px, 5.6vw, 76px); line-height: .98; letter-spacing: -.035em; text-wrap: balance; }
.network-hero p { font-size: 18px; color: rgba(255,255,255,.82); }
.kn-content .network-hero p, .kn-article-content .network-hero p { color: rgba(255,255,255,.9); }
.network-hero p:last-child { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 30px; }
.network-hero p:last-child > a:not(.wp-element-button) { color: #fff; font-weight: 800; }
.eyebrow { color: var(--kn-primary); font-size: 12px; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.kn-content h2 { max-width: 850px; margin: 0 0 24px; font-size: clamp(34px, 4.8vw, 56px); line-height: 1.04; letter-spacing: -.025em; }
.kn-content h3 { margin: 0 0 12px; font-size: 24px; line-height: 1.2; }
.kn-content p, .kn-content li { color: var(--kn-muted); font-size: 17px; }
.kn-content section > p { max-width: 850px; }
.kn-content section > ul, .kn-content section > ol { max-width: 900px; padding-left: 22px; }
.equipment-grid, .solution-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; margin-top: 34px; }
.equipment-grid article, .solution-grid article { min-height: 220px; padding: 31px; border: 1px solid var(--kn-line); border-radius: var(--kn-radius); background: #fff; box-shadow: 0 8px 30px rgba(16,32,51,.06); transition: transform .2s ease, box-shadow .2s ease; }
.equipment-grid article:hover, .solution-grid article:hover { transform: translateY(-4px); box-shadow: var(--kn-shadow); }
.equipment-grid h3 a, .solution-grid h3 a { color: var(--kn-ink); text-decoration: none; }
.equipment-grid h3 a:hover, .solution-grid h3 a:hover { color: var(--kn-primary); }
.kn-content section > h3 { margin-top: 28px; }
.kn-content section > h3 + p { margin-top: 0; }

.kn-page-hero { padding: 80px 0; background: var(--kn-ice); }
.kn-page-hero h1 { max-width: 850px; margin: 12px 0; font-size: clamp(42px, 6vw, 68px); line-height: 1; }
.kn-page-hero p { max-width: 720px; color: var(--kn-muted); font-size: 18px; }
.kn-article { padding: 64px 0 90px; }
.kn-article-content { max-width: 820px; }
.kn-article-content h2 { margin-top: 46px; font-size: 32px; line-height: 1.2; }
.kn-article-content p, .kn-article-content li { color: #425d70; font-size: 17px; line-height: 1.85; }

.kn-footer-cta { padding: 62px 0; color: #fff; background: var(--kn-primary-dark); }
.kn-footer-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.kn-footer-cta h2 { max-width: 720px; margin: 0; font-size: clamp(30px,4vw,48px); line-height: 1.05; }
.kn-footer-cta .kn-nav-cta { color: var(--kn-primary-dark) !important; background: #fff; }
.kn-footer { padding: 58px 0 24px; color: rgba(255,255,255,.74); background: var(--kn-ink); }
.kn-footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 50px; }
.kn-footer h2, .kn-footer h3 { color: #fff; }
.kn-footer h2 { margin-top: 0; }
.kn-footer a { color: rgba(255,255,255,.86); }
.kn-footer ul { list-style: none; margin: 0; padding: 0; }
.kn-footer li + li { margin-top: 10px; }
.kn-footer-bottom { margin-top: 45px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }
.kn-floating { position: fixed; z-index: 45; right: 18px; top: 50%; display: grid; gap: 9px; transform: translateY(-50%); }
.kn-floating a { min-width: 126px; padding: 12px 14px; border-radius: 6px; color: #fff; background: var(--kn-primary); box-shadow: var(--kn-shadow); font-size: 13px; font-weight: 800; text-decoration: none; }
.kn-floating a:first-child { background: #1fae5b; }

@media (max-width: 1080px) {
  body.admin-bar .kn-header { top: 46px; }
  .kn-topbar { display: none; }
  .kn-menu-toggle { display: inline-grid; place-items: center; }
  .kn-header-inner { min-height: 74px; }
  .kn-nav { display: none; position: absolute; inset: 74px 0 auto; padding: 20px max(20px, calc((100vw - var(--kn-width)) / 2)); background: #fff; border-bottom: 1px solid var(--kn-line); box-shadow: var(--kn-shadow); }
  .kn-nav.is-open { display: block; }
  .kn-nav ul { display: grid; gap: 0; }
  .kn-nav li { border-bottom: 1px solid var(--kn-line); }
  .kn-nav a { display: block; padding: 14px 0; }
  .kn-nav-cta { margin-top: 18px; }
  .network-hero { min-height: 570px; }
  .network-hero h1 { font-size: clamp(43px, 10vw, 66px); }
  .equipment-grid, .solution-grid { grid-template-columns: 1fr; }
  .kn-footer-grid { grid-template-columns: 1fr 1fr; }
  .kn-footer-grid > div:first-child { grid-column: 1 / -1; }
  .kn-footer-cta-inner { display: block; }
  .kn-footer-cta .kn-nav-cta { margin-top: 24px; }
  .kn-floating { display: none; }
}

@media (max-width: 600px) {
  .kn-container { width: min(100% - 28px, var(--kn-width)); }
  .kn-brand { gap: 9px; }
  .kn-brand img { width: 145px; max-width: 46vw; }
  .kn-brand-copy { min-width: 0; }
  .kn-brand-copy strong { font-size: 14px; white-space: normal; }
  .kn-brand-copy small { display: none; }
  .kn-content > section, .kn-article-content > section { padding: 58px 18px; }
  .network-hero { min-height: 500px; }
  .network-hero h1 { max-width: 15ch; font-size: clamp(34px, 9.5vw, 42px); line-height: 1.04; }
  .network-hero p { font-size: 16px; }
  .kn-content h2 { font-size: 32px; }
  .kn-page-hero { padding: 58px 0; }
  .kn-page-hero h1 { font-size: clamp(34px, 9vw, 44px); line-height: 1.06; }
  .kn-content .network-hero, .kn-article-content .network-hero { padding-left: 18px; padding-right: 18px; }
  .kn-content .network-hero p:last-child, .kn-article-content .network-hero p:last-child { margin-bottom: 0; }
  .wp-element-button, .wp-block-button__link { width: 100%; max-width: 100%; white-space: normal; }
  .equipment-grid article, .solution-grid article { min-height: 0; padding: 24px; }
  .kn-footer-grid { grid-template-columns: 1fr; }
  .kn-footer-grid > div:first-child { grid-column: auto; }
}