@charset "utf-8";

:root {
    --brand: #0B3D91;
    --brand-2: #1E6FD9;
    --brand-3: #4C9AFF;
    --accent: #00B4C8;
    --ink: #141B2D;
    --ink-2: #2C3648;
    --muted: #5B6577;
    --muted-2: #8A93A5;
    --line: #E4E9F0;
    --bg: #FFFFFF;
    --bg-soft: #F6F8FC;
    --bg-deep: #071A3C;
    --radius: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 10px rgba(11, 61, 145, .06);
    --shadow: 0 10px 34px rgba(11, 61, 145, .10);
    --shadow-lg: 0 24px 60px rgba(7, 26, 60, .18);
    --max: 1200px;
    --ease: cubic-bezier(.22, .61, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ============ 导航 ============ */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 72px;
    transition: background .3s var(--ease), box-shadow .3s var(--ease), height .3s var(--ease);
    background: transparent;
}
.nav.scrolled {
    background: rgba(255, 255, 255, .92);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    box-shadow: 0 1px 0 var(--line), 0 6px 24px rgba(11, 61, 145, .06);
    height: 64px;
}
.nav-inner { height: 100%; display: flex; align-items: center; gap: 32px; }

.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark {
    width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
    background: linear-gradient(140deg, var(--brand-2), var(--brand) 60%, #061C43);
    display: grid; place-items: center;
    box-shadow: 0 4px 14px rgba(30, 111, 217, .35);
}
.logo-mark svg { width: 21px; height: 21px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name { font-size: 16px; font-weight: 700; letter-spacing: .3px; color: #fff; transition: color .3s; }
.logo-sub { font-size: 10.5px; letter-spacing: 2.2px; color: rgba(255, 255, 255, .62); text-transform: uppercase; transition: color .3s; }
.nav.scrolled .logo-name { color: var(--ink); }
.nav.scrolled .logo-sub { color: var(--muted-2); }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
    position: relative; padding: 8px 14px; font-size: 14.5px; font-weight: 500;
    color: rgba(255, 255, 255, .86); border-radius: 8px; transition: color .25s, background .25s;
}
.nav-links a::after {
    content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
    background: var(--accent); border-radius: 2px;
    transform: scaleX(0); transform-origin: center; transition: transform .28s var(--ease);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav.scrolled .nav-links a { color: var(--ink-2); }
.nav.scrolled .nav-links a:hover, .nav.scrolled .nav-links a.active { color: var(--brand-2); }

.nav-cta {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600;
    background: rgba(255, 255, 255, .14); color: #fff;
    border: 1px solid rgba(255, 255, 255, .28);
    transition: all .25s var(--ease); white-space: nowrap;
}
.nav-cta svg { width: 15px; height: 15px; }
.nav-cta:hover { background: #fff; color: var(--brand); border-color: #fff; }
.nav.scrolled .nav-cta { background: var(--brand-2); border-color: var(--brand-2); color: #fff; }
.nav.scrolled .nav-cta:hover { background: var(--brand); border-color: var(--brand); }

.hamburger { display: none; margin-left: auto; width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer; padding: 10px; }
.hamburger span { display: block; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s var(--ease), opacity .2s, background .3s; }
.hamburger span + span { margin-top: 5px; }
.nav.scrolled .hamburger span { background: var(--ink); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ 首屏 ============ */
.hero {
    position: relative; overflow: hidden;
    background: linear-gradient(160deg, #061C43 0%, #0B3D91 45%, #123E86 100%);
    padding: 148px 0 0; color: #fff;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
    -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
}
.glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.glow-1 { width: 620px; height: 620px; background: #1E6FD9; top: -230px; right: -140px; }
.glow-2 { width: 460px; height: 460px; background: #00B4C8; bottom: -220px; left: -140px; opacity: .3; }
.hero-lines { position: absolute; inset: 0; opacity: .5; }
.hero-lines svg { width: 100%; height: 100%; }

.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; padding-bottom: 88px; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 9px;
    padding: 6px 15px; border-radius: 999px; margin-bottom: 26px;
    background: rgba(0, 180, 200, .14); border: 1px solid rgba(0, 180, 200, .34);
    font-size: 13px; font-weight: 500; color: #7FE3EE; letter-spacing: .4px;
}
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(0, 180, 200, .22); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }

.hero h1 { font-size: clamp(32px, 4.4vw, 54px); line-height: 1.2; font-weight: 800; letter-spacing: -.5px; margin-bottom: 20px; }
.hero h1 .grad {
    background: linear-gradient(100deg, #7FDFFF 0%, #4C9AFF 55%, #A9CBFF 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: 17px; line-height: 1.85; color: rgba(255, 255, 255, .78); max-width: 540px; margin-bottom: 34px; }
.hero .lead b { color: #fff; font-weight: 600; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    padding: 13px 28px; border-radius: 10px; font-size: 15px; font-weight: 600;
    transition: all .28s var(--ease); border: 1.5px solid transparent; cursor: pointer;
}
.btn svg { width: 16px; height: 16px; transition: transform .28s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: #fff; color: var(--brand); box-shadow: 0 8px 24px rgba(0, 0, 0, .18); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(0, 0, 0, .24); }
.btn-ghost { border-color: rgba(255, 255, 255, .36); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { background: rgba(255, 255, 255, .15); border-color: rgba(255, 255, 255, .6); }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
    padding: 6px 13px; border-radius: 8px; font-size: 13px;
    background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
    color: rgba(255, 255, 255, .82);
}

/* 首屏右侧：运维看板示意 */
.panel {
    position: relative; border-radius: 18px; padding: 22px;
    background: linear-gradient(155deg, rgba(255, 255, 255, .13), rgba(255, 255, 255, .05));
    border: 1px solid rgba(255, 255, 255, .2);
    box-shadow: var(--shadow-lg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.panel-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.panel-head .t { font-size: 13.5px; font-weight: 600; color: rgba(255, 255, 255, .95); display: flex; align-items: center; gap: 8px; }
.panel-head .t i { width: 7px; height: 7px; border-radius: 50%; background: #37D67A; box-shadow: 0 0 0 3px rgba(55, 214, 122, .25); }
.panel-head .b { font-size: 11px; padding: 3px 9px; border-radius: 6px; background: rgba(55, 214, 122, .16); color: #6FE9A3; font-weight: 600; }

.ring-row { display: flex; align-items: center; gap: 20px; margin-bottom: 20px; }
.ring { position: relative; width: 108px; height: 108px; flex-shrink: 0; }
.ring svg { width: 108px; height: 108px; transform: rotate(-90deg); }
.ring .track { fill: none; stroke: rgba(255, 255, 255, .13); stroke-width: 9; }
.ring .bar { fill: none; stroke: url(#ringGrad); stroke-width: 9; stroke-linecap: round; stroke-dasharray: 283; stroke-dashoffset: 283; transition: stroke-dashoffset 1.8s var(--ease); }
.ring-num { position: absolute; inset: 0; display: grid; place-items: center; flex-direction: column; }
.ring-num b { font-size: 25px; font-weight: 800; line-height: 1; }
.ring-num small { font-size: 10.5px; color: rgba(255, 255, 255, .6); }

.ring-legend { flex: 1; display: flex; flex-direction: column; gap: 11px; }
.lg { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: rgba(255, 255, 255, .8); }
.lg i { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }
.lg .v { margin-left: auto; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; }

.bars { display: flex; align-items: flex-end; gap: 8px; height: 74px; margin-bottom: 18px; padding-top: 4px; }
.bars .b { flex: 1; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, var(--brand-3), rgba(76, 154, 255, .22)); height: 0; transition: height 1.1s var(--ease); position: relative; }
.bars .b.acc { background: linear-gradient(180deg, #22D3EE, rgba(34, 211, 238, .2)); }

.panel-list { display: flex; flex-direction: column; gap: 9px; }
.pl { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 9px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .1); font-size: 12.5px; }
.pl .dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.pl .dot.ok { background: #37D67A; } .pl .dot.run { background: #FFB020; } .pl .dot.new { background: #4C9AFF; }
.pl .txt { color: rgba(255, 255, 255, .88); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pl .st { margin-left: auto; font-size: 11px; font-weight: 600; color: rgba(255, 255, 255, .6); flex-shrink: 0; }

/* 数据条 */
.stats { position: relative; z-index: 3; display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px); border-radius: var(--radius-lg) var(--radius-lg) 0 0; box-shadow: 0 -10px 40px rgba(0, 0, 0, .1); }
.stat { padding: 30px 24px; text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: 0; top: 26%; bottom: 26%; width: 1px; background: var(--line); }
.stat .n { font-size: 34px; font-weight: 800; color: var(--brand); line-height: 1.1; font-variant-numeric: tabular-nums; letter-spacing: -.5px; }
.stat .n em { font-style: normal; font-size: 18px; margin-left: 2px; }
.stat .l { font-size: 13.5px; color: var(--muted); margin-top: 5px; }

/* ============ 通用区块 ============ */
.section { padding: 96px 0; }
.section.soft { background: linear-gradient(180deg, #F7F9FD 0%, #EEF3FB 100%); }
.sec-head { max-width: 720px; margin-bottom: 54px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-label {
    display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 700;
    letter-spacing: 1.6px; color: var(--brand-2); text-transform: uppercase; margin-bottom: 16px;
    padding: 6px 14px; border-radius: 999px; background: rgba(30, 111, 217, .08);
    border: 1px solid rgba(30, 111, 217, .16);
}
.sec-label::before { display: none; }
.sec-head.center .sec-label::after { display: none; }
.sec-head h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; line-height: 1.35; letter-spacing: -.3px; margin-bottom: 16px; }
.sec-head p { font-size: 16px; color: var(--muted); line-height: 1.9; }

/* ============ 关于 ============ */
.about-body { max-width: 880px; margin: 0 auto; }
.about-body p { color: var(--ink-2); font-size: 16.5px; line-height: 2.05; margin-bottom: 18px; text-align: center; }
.about-body p:last-child { margin-bottom: 0; }
.about-body p strong { color: var(--brand); font-weight: 600; }

.keypoints { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 58px; }
.kp {
    padding: 34px 28px 32px; text-align: center;
    background: linear-gradient(180deg, #fff 0%, #F6F9FF 100%);
    border: 1px solid var(--line); border-radius: var(--radius-lg);
    transition: transform .36s var(--ease), box-shadow .36s var(--ease), border-color .36s var(--ease);
}
.kp:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(30, 111, 217, .26); }
.kp .ic {
    width: 54px; height: 54px; margin: 0 auto 18px; border-radius: 15px;
    background: linear-gradient(140deg, var(--brand-2), var(--brand));
    display: grid; place-items: center;
    box-shadow: 0 10px 22px rgba(30, 111, 217, .22);
    transition: transform .36s var(--ease);
}
.kp:hover .ic { transform: translateY(-2px) scale(1.06); }
.kp .ic svg { width: 25px; height: 25px; color: #fff; }
.kp h4 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.kp p { font-size: 14px; color: var(--muted); line-height: 1.85; }

/* ============ 主营业务 ============ */
.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.biz {
    position: relative; padding: 30px 26px 28px; background: #fff;
    border: 1px solid var(--line); border-radius: var(--radius);
    transition: all .36s var(--ease); overflow: hidden;
}
.biz::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--brand-2), var(--accent));
    transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.biz:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.biz:hover::before { transform: scaleX(1); }
.biz .ic { width: 46px; height: 46px; border-radius: 12px; background: rgba(30, 111, 217, .09); display: grid; place-items: center; margin-bottom: 18px; transition: all .36s var(--ease); }
.biz:hover .ic { background: linear-gradient(140deg, var(--brand-2), var(--brand)); }
.biz .ic svg { width: 23px; height: 23px; color: var(--brand-2); transition: color .36s; }
.biz:hover .ic svg { color: #fff; }
.biz h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 9px; }
.biz p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.biz .num { position: absolute; right: 22px; top: 22px; font-size: 30px; font-weight: 800; color: rgba(11, 61, 145, .055); line-height: 1; }

/* ============ 解决方案 ============ */
.sol-list { display: flex; flex-direction: column; gap: 22px; }
.sol {
    display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: center;
    padding: 38px 40px; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius-lg); transition: all .36s var(--ease);
}
.sol:hover { box-shadow: var(--shadow); border-color: rgba(30, 111, 217, .3); transform: translateY(-3px); }
.sol .tag { display: flex; flex-direction: column; gap: 6px; }
.sol .tag .idx { font-size: 40px; font-weight: 800; line-height: 1; color: rgba(11, 61, 145, .12); }
.sol .tag .nm { font-size: 19px; font-weight: 700; color: var(--brand); }
.sol .tag .en { font-size: 11px; letter-spacing: 1.6px; color: var(--muted-2); text-transform: uppercase; }
.sol h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.sol p { font-size: 14.5px; color: var(--muted); line-height: 1.9; margin-bottom: 16px; }
.sol .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.sol .chips span { padding: 5px 12px; border-radius: 7px; font-size: 12.5px; background: var(--bg-soft); border: 1px solid var(--line); color: var(--ink-2); }

/* ============ 案例 ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case {
    display: flex; flex-direction: column; padding: 30px 28px; border-radius: var(--radius);
    background: #fff; border: 1px solid var(--line); transition: all .36s var(--ease); position: relative;
}
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.case .yr { font-size: 12.5px; font-weight: 700; color: var(--brand-2); letter-spacing: 1px; margin-bottom: 12px; display: flex; align-items: center; gap: 9px; }
.case .yr i { width: 18px; height: 2px; background: var(--brand-2); border-radius: 2px; }
.case h4 { font-size: 16.5px; font-weight: 700; line-height: 1.55; margin-bottom: 12px; }
.case p { font-size: 13.5px; color: var(--muted); line-height: 1.85; flex: 1; }
.case .meta { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; }
.case .meta .cli { color: var(--muted-2); }
.case .meta .amt { font-weight: 700; color: var(--brand); font-variant-numeric: tabular-nums; }

/* ============ 资质荣誉 ============ */
.honor-band { background: linear-gradient(135deg, var(--brand) 0%, #103B84 55%, #0A2A63 100%); padding: 84px 0; color: #fff; position: relative; overflow: hidden; }
.honor-band::before {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse 70% 90% at 50% 50%, #000, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 90% at 50% 50%, #000, transparent 75%);
}
.honor-band .sec-head h2, .honor-band .sec-label { color: #fff; }
.honor-band .sec-head p { color: rgba(255, 255, 255, .72); }
.honor-band .sec-label { color: #7FE3EE; background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .2); }
.honor-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor {
    padding: 28px 24px; border-radius: var(--radius); text-align: center;
    background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14);
    transition: all .34s var(--ease);
}
.honor:hover { background: rgba(255, 255, 255, .13); transform: translateY(-5px); border-color: rgba(0, 180, 200, .5); box-shadow: 0 14px 30px rgba(0, 0, 0, .22); }
.honor .ic { width: 48px; height: 48px; margin: 0 auto 15px; border-radius: 50%; background: rgba(0, 180, 200, .18); border: 1px solid rgba(0, 180, 200, .34); display: grid; place-items: center; }
.honor .ic svg { width: 22px; height: 22px; color: #7FE3EE; }
.honor h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 7px; }
.honor p { font-size: 12.5px; color: rgba(255, 255, 255, .66); line-height: 1.7; }

/* ============ 联系 ============ */
.contact-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 52px; align-items: start; }
.contact-info .item { display: flex; gap: 17px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.contact-info .item:first-child { padding-top: 0; }
.contact-info .ic { width: 44px; height: 44px; border-radius: 11px; background: rgba(30, 111, 217, .09); display: grid; place-items: center; flex-shrink: 0; }
.contact-info .ic svg { width: 20px; height: 20px; color: var(--brand-2); }
.contact-info .lb { font-size: 12.5px; color: var(--muted-2); letter-spacing: .5px; margin-bottom: 4px; }
.contact-info .vl { font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.6; }
.contact-info .vl a:hover { color: var(--brand-2); }
.contact-info .vl small { display: block; font-size: 13px; font-weight: 400; color: var(--muted); margin-top: 2px; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); }
.form-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.form-card .sub { font-size: 13.5px; color: var(--muted); margin-bottom: 24px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.f-g { margin-bottom: 16px; }
.f-g label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 7px; }
.f-g label i { color: #E5484D; font-style: normal; }
.f-g input, .f-g select, .f-g textarea {
    width: 100%; padding: 11px 14px; font-size: 14px; font-family: inherit; color: var(--ink);
    border: 1.5px solid var(--line); border-radius: 9px; background: #fff;
    transition: border-color .25s, box-shadow .25s; outline: none;
}
.f-g textarea { resize: vertical; min-height: 96px; }
.f-g input:focus, .f-g select:focus, .f-g textarea:focus { border-color: var(--brand-2); box-shadow: 0 0 0 3.5px rgba(30, 111, 217, .12); }
.f-g input::placeholder, .f-g textarea::placeholder { color: var(--muted-2); }
.form-card .btn-primary { width: 100%; margin-top: 6px; background: var(--brand-2); color: #fff; }
.form-card .btn-primary:hover { background: var(--brand); }
.form-note { font-size: 12px; color: var(--muted-2); text-align: center; margin-top: 14px; }
.form-msg { display: none; margin-top: 16px; padding: 12px 16px; border-radius: 9px; font-size: 13.5px; background: rgba(55, 214, 122, .1); border: 1px solid rgba(55, 214, 122, .32); color: #17803D; }
.form-msg.show { display: block; }
.form-msg.err { background: rgba(229, 72, 77, .08); border-color: rgba(229, 72, 77, .3); color: #C4272C; }

/* ============ 页脚 ============ */
.footer { background: var(--bg-deep); color: rgba(255, 255, 255, .68); padding: 66px 0 0; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 44px; padding-bottom: 46px; }
.foot-brand .logo-name { color: #fff; }
.foot-brand .logo-sub { color: rgba(255, 255, 255, .45); }
.foot-brand p { font-size: 13.5px; line-height: 1.95; margin: 18px 0 22px; max-width: 330px; }
.foot-social { display: flex; gap: 10px; }
.foot-social a { width: 36px; height: 36px; border-radius: 9px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .12); display: grid; place-items: center; transition: all .28s; }
.foot-social a:hover { background: var(--brand-2); border-color: var(--brand-2); transform: translateY(-3px); }
.foot-social svg { width: 17px; height: 17px; color: rgba(255, 255, 255, .8); }
.foot-col h4 { font-size: 14.5px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.foot-col ul { display: flex; flex-direction: column; gap: 11px; }
.foot-col a { font-size: 13.5px; transition: color .25s, padding-left .25s; }
.foot-col a:hover { color: var(--brand-3); padding-left: 4px; }
.foot-col li.plain { font-size: 13.5px; line-height: 1.8; }
.foot-bar { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0 30px; display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; font-size: 12.5px; }
.foot-bar .fl { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.foot-bar .fr { margin-left: auto; display: flex; gap: 18px; }
.foot-bar a:hover { color: #fff; }

/* ============ 动画 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; } .reveal.d4 { transition-delay: .4s; }

.back-top {
    position: fixed; right: 26px; bottom: 26px; z-index: 90;
    width: 44px; height: 44px; border-radius: 50%; border: 0; cursor: pointer;
    background: var(--brand-2); color: #fff; display: grid; place-items: center;
    box-shadow: 0 8px 22px rgba(30, 111, 217, .4);
    opacity: 0; visibility: hidden; transform: translateY(12px);
    transition: all .32s var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--brand); transform: translateY(-3px); }
.back-top svg { width: 18px; height: 18px; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
    .hero-inner { grid-template-columns: 1fr; gap: 44px; }
    .hero { padding-top: 120px; }
    .hero-visual { max-width: 460px; }
    .biz-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-body p { font-size: 15.5px; line-height: 1.95; }
    .foot-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
}

@media (max-width: 860px) {
    .nav-links {
        position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch;
        gap: 0; padding: 12px 20px 22px; background: #fff;
        box-shadow: 0 16px 32px rgba(11, 61, 145, .12);
        transform: translateY(-12px); opacity: 0; visibility: hidden; transition: all .3s var(--ease);
    }
    .nav-links.open { transform: none; opacity: 1; visibility: visible; }
    .nav-links a { padding: 13px 8px; color: var(--ink-2) !important; border-bottom: 1px solid var(--line); border-radius: 0; font-size: 15px; }
    .nav-links a::after { display: none; }
    .nav-cta { display: none; }
    .hamburger { display: block; }
    .section { padding: 66px 0; }
    .stats { grid-template-columns: repeat(2, 1fr); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
    .stat:nth-child(3)::before, .stat:nth-child(3) { border-top: 1px solid var(--line); }
    .stat:nth-child(3)::before { display: none; }
    .stat:nth-child(4)::before { top: 26%; }
    .sol { grid-template-columns: 1fr; gap: 20px; padding: 28px 24px; }
    .sol .tag { flex-direction: row; align-items: baseline; gap: 12px; }
    .sol .tag .idx { font-size: 30px; }
    .honor-band { padding: 62px 0; }
    .keypoints { grid-template-columns: 1fr; gap: 16px; margin-top: 44px; }
    .kp { padding: 26px 22px; }
    .kp h4 { font-size: 16px; }
    .about-body p { text-align: left; }
    .foot-grid { grid-template-columns: 1fr; }
    .foot-bar .fr { margin-left: 0; }
}

@media (max-width: 560px) {
    .wrap { padding: 0 18px; }
    .hero { padding-top: 104px; }
    .hero-inner { padding-bottom: 60px; }
    .hero h1 { font-size: 28px; }
    .hero .lead { font-size: 15px; }
    .btn { padding: 12px 22px; font-size: 14px; }
    .biz-grid, .case-grid, .honor-grid { grid-template-columns: 1fr; }
    .kp .ic { width: 48px; height: 48px; }
    .f-row { grid-template-columns: 1fr; }
    .form-card { padding: 24px 20px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat { padding: 22px 14px; }
    .stat .n { font-size: 27px; }
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}