:root {
  color-scheme: light;
  --ink: #18233b;
  --muted: #657187;
  --soft: #8893a7;
  --blue: #2468ef;
  --blue-deep: #1649b5;
  --line: rgba(89, 113, 159, .17);
  --surface: #fff;
  --shadow: 0 24px 70px rgba(64, 87, 139, .1);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  /* 统一背景：整站蓝色渐变（用户要求：不要白一块蓝一块）。
     —— 用固定渐变 + 极浅的色相偏移做出层次，避免"分块感"。 */
  --page-bg: linear-gradient(168deg, #f2f7ff 0%, #eaf2ff 26%, #e6efff 52%, #eaf3ff 74%, #f4f8ff 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 0; }
body {
  margin: 0;
  color: var(--ink);
  font: 16px/1.7 var(--font);
  /* 背景统一为蓝色渐变，并固定在视口 —— 滚动时不会出现"白一块蓝一块" */
  background: var(--page-bg);
  background-attachment: fixed;
}
/* 第 3 条：全站文案不可选中/复制（作品集展示页，防止内容被直接搬运） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
/* 但代码/技术栈这类需要可复制的内容仍允许选中（不牺牲可用性） */
[data-selectable], [data-selectable] * { -webkit-user-select: text; user-select: text; }
button, a { }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }
svg, canvas { display: block; }
/* 选中高亮保留（虽然正文禁选，但允许选中的区域仍有品牌色反馈） */
::selection { color: #fff; background: var(--blue); }
:focus-visible { outline: 3px solid #5d8dff; outline-offset: 4px; }
.skip-link { position: fixed; z-index: 200; top: -70px; left: 16px; padding: 10px 16px; border-radius: 14px; color: #fff; background: var(--blue-deep); }
.skip-link:focus { top: 14px; }
.wrap { width: min(100% - 88px, 1220px); margin-inline: auto; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 21px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .17em; }
.eyebrow::before { content: ""; width: 20px; height: 1px; background: currentColor; }
.section-title { margin-bottom: 24px; font-size: clamp(36px, 4.4vw, 62px); font-weight: 720; letter-spacing: -.065em; line-height: 1.22; }
.section-title em, .closing em { color: var(--blue); font-style: normal; }
.section-lead { max-width: 580px; margin-bottom: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }

/* Liquid Glass is reserved for navigation, controls, and the hero exhibit. */
.top-nav { position: fixed; z-index: 100; top: 20px; left: 50%; display: flex; align-items: center; justify-content: space-between; gap: 24px; width: min(calc(100% - 48px), 1080px); min-height: 62px; padding: 7px 8px 7px 21px; transform: translateX(-50%); border: 1px solid rgba(255,255,255,.8); border-radius: 100px; background: rgba(255,255,255,.61); box-shadow: 0 12px 38px rgba(51, 80, 143, .13), inset 0 1px 0 rgba(255,255,255,.95); backdrop-filter: blur(24px) saturate(155%); transition: top .35s, width .35s, min-height .35s, background .35s, box-shadow .35s; }
.top-nav::after { content: ""; position: absolute; inset: 1px; z-index: -1; border-radius: inherit; background: linear-gradient(145deg, rgba(255,255,255,.55), transparent 46%, rgba(255,255,255,.18)); pointer-events: none; }
.top-nav.is-scrolled { top: 11px; width: min(calc(80% - 38px), 800px); min-height: 55px; background: rgba(255,255,255,.78); box-shadow: 0 10px 28px rgba(51,80,143,.15), inset 0 1px 0 #fff; }
.nav-brand { display: inline-flex; align-items: center; gap: 9px; flex: none; color: #17243e; font-size: 15px; font-weight: 800; letter-spacing: -.035em; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 29px; height: 29px; border-radius: 10px; color: #fff; background: linear-gradient(140deg, #70acff 0%, #296fee 52%, #5a55d6 100%); box-shadow: inset 0 1px 1px rgba(255,255,255,.6), 0 5px 12px rgba(40,102,221,.25); font-size: 17px; font-weight: 720; }
.nav-links { display: flex; gap: 27px; color: #526077; font-size: 12px; font-weight: 650; white-space: nowrap; }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--blue); }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; gap: 14px; flex: none; min-height: 44px; padding: 0 18px; border-radius: 99px; color: #fff; background: #1e62dc; box-shadow: 0 6px 15px rgba(36,104,239,.2), inset 0 1px 0 rgba(255,255,255,.3); font-size: 12px; font-weight: 750; white-space: nowrap; transition: transform .2s, box-shadow .2s; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 18px rgba(36,104,239,.26); }

.hero { position: relative; isolation: isolate; min-height: 760px; overflow: hidden; padding: 175px 0 94px; background: radial-gradient(circle at 78% 43%, rgba(144,193,255,.46), transparent 34%), radial-gradient(circle at 52% 10%, rgba(245,226,255,.65), transparent 33%), linear-gradient(125deg, #fff 2%, #f7f9ff 48%, #edf4ff 100%); }
.hero::before { content: ""; position: absolute; inset: auto -15% -62% 34%; height: 860px; border-radius: 50%; border: 1px solid rgba(100,149,230,.14); box-shadow: 0 0 0 75px rgba(255,255,255,.12), 0 0 0 160px rgba(182,211,255,.08); transform: rotate(-22deg); pointer-events: none; }
#hero-canvas { position: absolute; z-index: -1; inset: 0; width: 100%; height: 100%; opacity: .48; pointer-events: none; }
.hero-grid, .hero-frame { display: none; }
.hero .wrap { position: relative; min-height: 580px; }
.hero-content { position: relative; z-index: 2; width: min(620px, 55%); padding-top: 49px; }
.hero-status { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 8px 14px; border: 1px solid rgba(88,130,212,.15); border-radius: 99px; color: #587095; background: rgba(255,255,255,.58); font-size: 10px; font-weight: 780; letter-spacing: .13em; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #43bb8e; box-shadow: 0 0 0 4px rgba(67,187,142,.13); }
.hero h1 { margin: 0 0 15px; font-size: clamp(78px, 9vw, 142px); font-weight: 760; letter-spacing: -.09em; line-height: .97; white-space: nowrap; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero h1 > span { color: #92b6ff; }
.hero-subtitle { margin-bottom: 20px; font-size: clamp(27px, 3.1vw, 45px); font-weight: 710; letter-spacing: -.065em; line-height: 1.36; }
.hero-subtitle em { color: var(--blue); font-style: normal; }
.hero-description { max-width: 530px; margin-bottom: 30px; color: #5f6f87; font-size: 15px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; }
.button-primary, .button-secondary { display: inline-flex; align-items: center; justify-content: center; gap: 21px; min-height: 48px; padding: 0 21px; border-radius: 99px; font-size: 12px; font-weight: 750; transition: transform .22s, box-shadow .22s, background .22s; }
.button-primary { color: #fff; background: #2067e8; box-shadow: 0 12px 24px rgba(34,102,224,.2); }
.button-secondary { border: 1px solid rgba(55,88,147,.16); color: #294778; background: rgba(255,255,255,.69); box-shadow: inset 0 1px 0 rgba(255,255,255,.9); backdrop-filter: blur(12px); }
.button-primary:hover, .button-secondary:hover { transform: translateY(-3px); }
.button-primary:hover { box-shadow: 0 16px 27px rgba(34,102,224,.26); }
.button-secondary:hover { background: #fff; }
/* hero 底部说明行：原 padding-top 18px 让横线上沿紧贴按钮（用户反馈"横线和按钮连在一起"），
   现把横线下移、与按钮留出 34px 间距，文字再往下 14px，层次清晰不粘连。 */
.hero-metadata { display: flex; justify-content: space-between; gap: 15px; margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(90,126,180,.18); color: #8290a5; font-size: 10px; font-weight: 750; letter-spacing: .11em; }
.hero-node-label { display: none; }
.hero-visual { position: absolute; top: 7px; right: -22px; width: min(45%, 526px); height: 490px; perspective: 900px; pointer-events: none; }
.visual-halo { position: absolute; inset: 13% 5% 11%; border-radius: 50%; background: radial-gradient(circle at 50% 49%, rgba(255,255,255,.88) 0 15%, rgba(170,205,255,.42) 40%, rgba(153,156,245,.12) 59%, transparent 71%); filter: blur(18px); animation: halo-breathe 7s ease-in-out infinite alternate; }
.visual-ring { position: absolute; inset: 4% 4%; border: 1px solid rgba(65,125,231,.18); border-radius: 50%; transform: rotate(-27deg) scaleY(.74); box-shadow: inset 0 0 18px rgba(255,255,255,.9), 0 0 0 32px rgba(255,255,255,.1); }
.visual-ring::before { content: ""; position: absolute; top: 22%; left: 5%; width: 11px; height: 11px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 8px rgba(255,255,255,.32), 0 0 18px #fff; }
.glass-flow { position: absolute; top: 45px; left: 10%; width: 84%; min-height: 390px; overflow: hidden; padding: 24px; border: 1px solid rgba(255,255,255,.93); border-radius: 35px; background: linear-gradient(135deg, rgba(255,255,255,.66), rgba(235,246,255,.36) 50%, rgba(255,255,255,.48)); box-shadow: 0 36px 70px rgba(82,124,198,.22), inset 0 2px 1px rgba(255,255,255,.95), inset 0 -1px 0 rgba(255,255,255,.8); backdrop-filter: blur(34px) saturate(170%); transform: rotateY(-10deg) rotateZ(5deg); animation: glass-float 8s ease-in-out infinite; }
.glass-flow::before { content: ""; position: absolute; top: -65%; left: -22%; width: 66%; height: 190%; transform: rotate(24deg); background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent); }
.flow-top { position: relative; display: flex; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid rgba(77,113,177,.16); color: #6680a5; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.flow-top b { color: #1f67df; }
.flow-track { position: relative; display: grid; gap: 11px; padding: 19px 0 15px; }
.flow-track::before { content: ""; position: absolute; top: 39px; bottom: 38px; left: 21px; width: 1px; background: linear-gradient(#8ab9ff, #d3e5ff); }
.flow-step { position: relative; display: flex; align-items: center; gap: 16px; min-height: 51px; padding: 8px 13px; border: 1px solid rgba(255,255,255,.82); border-radius: 18px; background: rgba(255,255,255,.47); box-shadow: 0 6px 19px rgba(93,132,190,.06), inset 0 1px 0 rgba(255,255,255,.9); color: #26446d; font-size: 14px; font-weight: 760; }
.flow-step:nth-child(3) { border-color: rgba(98,150,240,.45); background: rgba(228,239,255,.8); box-shadow: 0 12px 30px rgba(46,109,217,.13), inset 0 1px 0 #fff; }
.flow-step i { position: relative; z-index: 1; display: grid; place-items: center; flex: none; width: 26px; height: 26px; border-radius: 50%; background: linear-gradient(140deg, #f8fcff, #c9dfff); color: #296fe2; font-size: 11px; font-style: normal; }
.flow-step:nth-child(3) i { color: #fff; background: #2c73ed; box-shadow: 0 0 0 5px rgba(44,115,237,.12); }
.flow-step small { margin-left: auto; color: #7692b4; font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.flow-bottom { position: relative; display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid rgba(77,113,177,.16); color: #7085a4; font-size: 10px; font-weight: 750; letter-spacing: .1em; }
.flow-bottom strong { color: #32a97b; font-size: 11px; }
.float-chip { position: absolute; right: -34px; top: 8px; display: flex; align-items: center; gap: 9px; padding: 13px 17px; border: 1px solid rgba(255,255,255,.95); border-radius: 18px; color: #28446e; background: rgba(255,255,255,.7); box-shadow: 0 17px 32px rgba(68,116,192,.17), inset 0 1px 0 #fff; backdrop-filter: blur(20px); font-size: 11px; font-weight: 780; transform: rotate(-6deg); animation: chip-float 7s ease-in-out infinite alternate; }
.float-chip span { width: 8px; height: 8px; border-radius: 50%; background: #3bc591; box-shadow: 0 0 0 4px rgba(59,197,145,.15); }

.signal-strip { position: relative; z-index: 2; margin-top: 34px; padding-top: 0; flex: none; width: 100%; align-self: stretch; }
/* 第 2 条：引导条由 4 条改为 6 条（对齐工作流的六个真实阶段），排版随之改 6 列 */
.signal-strip .wrap { display: grid; grid-template-columns: repeat(6, 1fr); overflow: hidden; border: 1px solid rgba(255,255,255,.88); border-radius: 23px; background: rgba(255,255,255,.88); box-shadow: 0 18px 42px rgba(82,112,162,.09), inset 0 1px 0 #fff; }
.signal { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 62px; padding: 12px 6px; border-right: 1px solid var(--line); color: #354562; font-size: 11px; font-weight: 750; white-space: nowrap; }
@media (max-width: 1080px) { .signal-strip .wrap { grid-template-columns: repeat(3, 1fr); } .signal { min-height: 58px; } }
@media (max-width: 560px) { .signal-strip .wrap { grid-template-columns: repeat(2, 1fr); } }
.signal:last-child { border-right: 0; }
.signal span { color: var(--blue); font-size: 11px; font-weight: 830; letter-spacing: .08em; }

.premise { padding: 143px 0 122px; }
.premise-head { display: grid; grid-template-columns: .96fr 1fr; align-items: end; gap: 92px; }
.premise-head .section-title { margin-bottom: 0; }
.premise-line { display: flex; align-items: center; gap: 19px; margin-top: 75px; padding: 25px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: #66758e; font-size: 19px; font-weight: 600; letter-spacing: -.03em; }
.premise-line b { color: var(--blue); font-weight: 500; }
.premise-line span:nth-of-type(2) { color: #1c3154; font-weight: 780; }
.premise-line .arrow { margin-left: auto; color: var(--blue); }

.capabilities { padding: 0 0 135px; }
.capabilities-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 37px; }
.capabilities-head .section-title { margin-bottom: 0; }
.capabilities-head .section-lead { max-width: 390px; }
.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.capability { min-height: 446px; overflow: hidden; border: 1px solid rgba(228,234,248,.88); border-radius: 28px; background: #fff; box-shadow: var(--shadow); transition: transform .35s, box-shadow .35s; }
.capability:hover { transform: translateY(-7px); box-shadow: 0 30px 75px rgba(64,87,139,.16); }
.capability-head { padding: 32px 28px 0; }
.capability-kicker { display: block; margin-bottom: 21px; color: var(--blue); font-size: 10px; font-weight: 830; letter-spacing: .16em; }
.capability h3 { margin-bottom: 11px; font-size: 25px; font-weight: 760; letter-spacing: -.05em; }
.capability p { max-width: 330px; margin-bottom: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.capability-visual { position: relative; height: 210px; margin: 26px 28px 0; border-top: 1px solid var(--line); }
.lane { position: absolute; left: 0; right: 0; display: grid; grid-template-columns: 68px 1fr 12px; align-items: center; gap: 9px; height: 25px; color: #7082a2; font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.lane:nth-child(1) { top: 24px; }.lane:nth-child(2) { top: 80px; }.lane:nth-child(3) { top: 136px; }
.lane i { height: 1px; background: #bdd3f5; }.lane:nth-child(2) i { height: 2px; background: #3d81f4; }
.lane b { width: 9px; height: 9px; border: 2px solid #8db9f8; border-radius: 50%; }.lane:nth-child(2) b { background: #3d81f4; border-color: #3d81f4; box-shadow: 0 0 0 5px rgba(61,129,244,.1); }
.lane::after { content: ""; position: absolute; right: 5px; bottom: -24px; height: 23px; border-right: 1px dashed #aac7f2; }.lane:last-child::after { display: none; }
.decision-orbit { position: absolute; top: 23px; left: 50%; width: 145px; height: 145px; transform: translateX(-50%); border: 1px solid #b9cff1; border-radius: 50%; background: radial-gradient(circle, #f0f6ff, transparent 65%); }
.decision-orbit::before, .decision-orbit::after { content: ""; position: absolute; inset: 19px; border: 1px dashed #acc8ef; border-radius: 50%; }.decision-orbit::after { inset: 42px; border: 1px solid #5b99f4; }
.decision-core { position: absolute; top: 95px; left: 50%; transform: translate(-50%, -50%); color: #235bc0; font-size: 11px; font-weight: 850; white-space: nowrap; }
.decision-choice { position: absolute; top: 167px; width: 78px; padding-top: 8px; border-top: 1px solid #b7ccef; color: #8192aa; font-size: 10px; font-weight: 750; text-align: center; }.decision-choice.accept { left: 5%; color: #2b9b74; border-color: #75c9aa; }.decision-choice.return { right: 5%; color: #bd7a61; border-color: #dbac9d; }
.packet-line { position: absolute; left: 12px; right: 12px; height: 45px; border: 1px solid #b9cdee; border-radius: 11px; transform: skewY(-5deg); background: #eef5ff; box-shadow: 0 8px 16px rgba(64,112,178,.07); }.packet-line.one { top: 29px; right: 42px; opacity: .55; }.packet-line.two { top: 71px; right: 27px; opacity: .8; }.packet-line.three { top: 113px; border-color: #7fb0f6; background: #e0edff; }
.packet-line span { display: block; padding: 11px 15px; color: #4d78b5; font-size: 10px; font-weight: 800; transform: skewY(5deg); }.packet-stamp { position: absolute; right: 12px; bottom: 1px; color: #2c9f78; font-size: 9px; font-weight: 800; }

.system { padding: 125px 0 133px; background: transparent; /* 统一蓝渐变 */ }
.system-top { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 60px; margin-bottom: 39px; }
.workflow-tabs { display: inline-flex; gap: 5px; margin-bottom: 31px; padding: 5px; border: 1px solid rgba(255,255,255,.92); border-radius: 100px; background: rgba(255,255,255,.62); box-shadow: 0 9px 25px rgba(67,105,165,.1), inset 0 1px 0 #fff; backdrop-filter: blur(18px) saturate(150%); }
.workflow-tabs button { min-height: 43px; padding: 0 22px; border: 0; border-radius: 99px; color: #5d6f8c; background: transparent; cursor: pointer; font-size: 12px; font-weight: 780; transition: color .22s, background .22s, box-shadow .22s; }
.workflow-tabs button[aria-selected="true"] { color: #fff; background: #2870e8; box-shadow: 0 5px 15px rgba(40,112,232,.25), inset 0 1px 0 rgba(255,255,255,.25); }
.stage-map { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 9px; }
.stage { position: relative; min-height: 145px; padding: 23px 17px 17px; border: 1px solid rgba(255,255,255,.96); border-radius: 19px; color: var(--ink); background: rgba(255,255,255,.7); box-shadow: 0 8px 24px rgba(82,116,170,.07), inset 0 1px 0 #fff; text-align: left; cursor: pointer; transition: transform .25s, box-shadow .25s, background .25s, border-color .25s; }
.stage:hover { transform: translateY(-4px); box-shadow: 0 13px 28px rgba(82,116,170,.11); }
.stage[aria-pressed="true"] { border-color: rgba(77,139,240,.52); background: #fff; box-shadow: 0 15px 36px rgba(56,110,206,.16), inset 0 1px 0 #fff; }
.stage::before { content: ""; position: absolute; top: 20px; right: 16px; width: 8px; height: 8px; border: 1px solid #aac6ee; border-radius: 50%; }.stage[aria-pressed="true"]::before { border-color: #2c73ed; background: #2c73ed; box-shadow: 0 0 0 5px rgba(44,115,237,.1); }
.stage-num { display: block; margin-bottom: 25px; color: #90a0b7; font-size: 10px; font-weight: 810; letter-spacing: .08em; }.stage-title { display: block; font-size: 15px; font-weight: 790; line-height: 1.45; }.stage-owner { display: block; margin-top: 9px; color: #7688a2; font-size: 10px; }.stage[aria-pressed="true"] .stage-title { color: #1e65dc; }
.stage-detail { display: grid; grid-template-columns: 115px 1fr 120px; align-items: center; gap: 30px; min-height: 150px; margin-top: 15px; padding: 25px 30px; border: 1px solid rgba(255,255,255,.95); border-radius: 25px; background: rgba(255,255,255,.87); box-shadow: 0 15px 32px rgba(74,111,172,.08); }
.stage-detail.is-updating { animation: detail-in .42s both; }.stage-detail-number { color: #4384ef; font-size: 65px; font-weight: 780; letter-spacing: -.1em; line-height: 1; }.stage-detail h3 { margin-bottom: 6px; font-size: 19px; font-weight: 780; }.stage-detail p { margin-bottom: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }.stage-detail-meta { color: #7892b8; font-size: 10px; font-weight: 830; letter-spacing: .08em; text-align: right; }

.governance { padding: 140px 0; background: transparent; /* 统一蓝渐变 */ }.governance-grid { display: grid; grid-template-columns: .83fr 1.17fr; align-items: center; gap: 75px; }.governance-note { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); color: #7d93b5; font-size: 10px; font-weight: 800; letter-spacing: .13em; }
.gate-diagram { position: relative; display: grid; grid-template-columns: 1fr 1fr 1.16fr; align-items: center; gap: 15px; min-height: 330px; padding: 33px; border: 1px solid #e6edfb; border-radius: 29px; background: radial-gradient(circle at 50% 50%, #eaf3ff, #f7faff 66%); box-shadow: var(--shadow); }.gate-diagram::before { content: ""; position: absolute; top: 50%; left: 8%; right: 10%; border-top: 1px solid #c2d7f6; }
.gate-node { position: relative; z-index: 1; display: grid; place-items: center; width: 100%; max-width: 144px; aspect-ratio: 1; margin: auto; border: 1px solid #c4d8f7; border-radius: 50%; background: #fff; box-shadow: 0 12px 30px rgba(71,117,188,.09); text-align: center; }.gate-node.center { border-color: #84b0f5; box-shadow: 0 0 0 10px rgba(88,149,244,.08), 0 14px 32px rgba(71,117,188,.14); }.gate-node small { display: block; color: #638cc8; font-size: 10px; font-weight: 800; }.gate-node strong { display: block; font-size: 16px; font-weight: 800; }.gate-branches { position: relative; z-index: 1; display: grid; gap: 15px; }.gate-branches div { padding: 13px 13px; border: 1px solid #d8e5f7; border-radius: 14px; background: #fff; color: #4b668c; font-size: 11px; font-weight: 760; }.gate-branches .yes { color: #278966; }.gate-branches .no { color: #a46c58; }.gate-caption { position: absolute; right: 28px; bottom: 18px; color: #9aabc3; font-size: 9px; font-weight: 800; letter-spacing: .07em; }

.knowledge { padding: 130px 0; background: transparent; /* 统一蓝渐变 */ }.knowledge-grid { display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 78px; }.knowledge-graphic { position: relative; min-height: 410px; overflow: hidden; border: 1px solid #e6edfb; border-radius: 30px; background: radial-gradient(circle at 48% 39%, #fff, #e9f2ff 72%); box-shadow: var(--shadow); }.knowledge-graphic svg { width: 100%; height: 410px; }.knowledge-graphic .legend { position: absolute; right: 24px; bottom: 18px; color: #8b9fbf; font-size: 9px; font-weight: 800; letter-spacing: .1em; }.knowledge-copy .section-lead { margin-bottom: 28px; }.knowledge-list { border-top: 1px solid var(--line); }.knowledge-list div { display: grid; grid-template-columns: 28px 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); color: #465977; font-size: 13px; }.knowledge-list span { color: var(--blue); font-weight: 800; }

.ownership { padding: 135px 0; background: transparent; /* 统一蓝渐变 */ }.ownership-grid { display: grid; grid-template-columns: .95fr 1fr; gap: 85px; }.ownership-roles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 25px; align-content: start; }.ownership-role { padding: 21px 0; border-top: 1px solid var(--line); }.ownership-role small { display: block; margin-bottom: 8px; color: var(--blue); font-size: 10px; font-weight: 820; letter-spacing: .15em; }.ownership-role strong { font-size: 14px; font-weight: 750; line-height: 1.6; }.build-line { margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--line); color: #8c9ab0; font-size: 10px; font-weight: 780; letter-spacing: .04em; }
/* 结尾区旧版式（横排 + 白蓝渐变）已废弃：现改为整屏居中的品牌收尾，见文件末尾 .closing-inner
   注意：此处不再定义 .closing 的背景，避免与"整站统一蓝渐变"冲突（用户要求：不要白一块蓝一块）。 */
.closing-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
/* 页脚也统一透明背景（原为 #edf3fc 实色，会造成"白一块蓝一块"的观感） */
footer { padding: 22px 0; background: transparent; color: #8594ac; font-size: 10px; font-weight: 720; letter-spacing: .07em; }footer .wrap { display: flex; justify-content: space-between; gap: 20px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .72s ease, transform .72s cubic-bezier(.2,.7,.2,1); }.reveal.is-visible { opacity: 1; transform: none; }
@keyframes halo-breathe { from { transform: scale(.92); opacity: .75; } to { transform: scale(1.09); opacity: 1; } }
@keyframes glass-float { 0%,100% { transform: translateY(0) rotateY(-10deg) rotateZ(5deg); } 50% { transform: translateY(-13px) rotateY(-7deg) rotateZ(4deg); } }
@keyframes chip-float { from { transform: translateY(0) rotate(-6deg); } to { transform: translateY(-12px) rotate(-3deg); } }
@keyframes detail-in { from { opacity: .55; transform: translateY(8px); } to { opacity: 1; transform: none; } }

@media (max-width: 1080px) {
  .wrap { width: min(100% - 56px, 1220px); }.hero { min-height: 730px; }.hero-content { width: 57%; }.hero-visual { right: 0; width: 45%; }.hero h1 { font-size: clamp(73px, 9vw, 110px); }.hero-subtitle { font-size: 34px; }.premise-head, .governance-grid, .knowledge-grid, .ownership-grid { gap: 42px; }.capability-head { padding-inline: 22px; }.capability-visual { margin-inline: 22px; }.stage { padding-inline: 12px; }.stage-title { font-size: 13px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 0; }.wrap { width: min(100% - 36px, 1220px); }.top-nav { top: 11px; width: calc(100% - 24px); min-height: 54px; padding: 5px 5px 5px 13px; gap: 8px; }.top-nav.is-scrolled { top: 7px; width: calc(80vw - 19px); min-height: 50px; }.nav-brand { font-size: 13px; }.brand-mark { width: 26px; height: 26px; font-size: 15px; }.nav-links { display: none; }.nav-cta { min-height: 40px; padding: 0 13px; gap: 7px; font-size: 11px; }
  .hero { min-height: 0; padding: 115px 0 70px; }.hero .wrap { min-height: 0; }.hero-content { width: 100%; padding-top: 0; }.hero-status { margin-bottom: 20px; font-size: 9px; }.hero h1 { font-size: clamp(61px, 15vw, 105px); }.hero-subtitle { margin-bottom: 14px; font-size: clamp(25px, 6vw, 37px); }.hero-description { max-width: 620px; margin-bottom: 22px; font-size: 13px; }.button-primary, .button-secondary { min-height: 44px; padding: 0 17px; font-size: 11px; }.hero-visual { position: relative; top: auto; right: auto; width: min(100%, 440px); height: 360px; margin: 35px auto 0; transform: none; }.glass-flow { top: 18px; left: 10%; width: 80%; min-height: 315px; padding: 17px; border-radius: 27px; transform: rotateY(-9deg) rotateZ(4deg); }.flow-top { padding-bottom: 11px; font-size: 8px; }.flow-track { gap: 6px; padding: 11px 0; }.flow-track::before { top: 30px; bottom: 26px; left: 17px; }.flow-step { min-height: 42px; gap: 10px; padding: 5px 9px; border-radius: 13px; font-size: 11px; }.flow-step i { width: 20px; height: 20px; font-size: 9px; }.flow-step small { font-size: 8px; }.flow-bottom { padding-top: 9px; font-size: 8px; }.flow-bottom strong { font-size: 9px; }.float-chip { right: 0; bottom: -7px; padding: 10px 12px; font-size: 9px; }.hero-metadata { position: static; margin-top: 24px; font-size: 9px; }.hero-metadata span:last-child { display: none; }
  .signal-strip { margin-top: -13px; }.signal-strip .wrap { grid-template-columns: repeat(2, 1fr); border-radius: 19px; }.signal { min-height: 60px; padding: 11px 14px; font-size: 12px; }.signal:nth-child(2) { border-right: 0; }.signal:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .premise, .system, .governance, .knowledge, .ownership { padding: 88px 0; }.section-title { font-size: clamp(34px, 8vw, 48px); }.section-lead { font-size: 14px; }.premise-head, .system-top, .governance-grid, .knowledge-grid, .ownership-grid { grid-template-columns: 1fr; gap: 20px; }.premise-line { margin-top: 43px; font-size: 15px; }.capabilities { padding-bottom: 90px; }.capabilities-head { display: block; }.capabilities-head .section-title { margin-bottom: 15px; }.capability-grid { grid-template-columns: 1fr; }.capability { min-height: 394px; }.capability-visual { height: 190px; }.lane:nth-child(1) { top: 17px; }.lane:nth-child(2) { top: 69px; }.lane:nth-child(3) { top: 121px; }.decision-orbit { top: 12px; }.decision-core { top: 84px; }.decision-choice { top: 159px; }.packet-line.one { top: 20px; }.packet-line.two { top: 60px; }.packet-line.three { top: 100px; }
  .system-top { margin-bottom: 28px; }.workflow-tabs { display: flex; width: 100%; }.workflow-tabs button { flex: 1; min-width: 0; padding: 0 5px; font-size: 11px; }.stage-map { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }.stage { min-height: 108px; padding: 14px; }.stage-num { margin-bottom: 10px; }.stage-detail { grid-template-columns: 56px 1fr; gap: 12px; min-height: 130px; padding: 18px; }.stage-detail-number { font-size: 45px; }.stage-detail h3 { font-size: 15px; }.stage-detail p { font-size: 11px; }.stage-detail-meta { grid-column: 2; text-align: left; }
  .gate-diagram { min-height: 280px; padding: 18px; gap: 7px; }.gate-node { max-width: 104px; }.gate-node small { font-size: 8px; }.gate-node strong { font-size: 12px; }.gate-branches div { padding: 8px; font-size: 9px; }.gate-caption { right: 17px; bottom: 11px; font-size: 8px; }.knowledge-graphic, .knowledge-graphic svg { min-height: 310px; height: 310px; }.ownership-roles { margin-top: 22px; }.build-line { margin-top: 38px; line-height: 1.8; }.closing { padding: 60px 0; }.closing .wrap { display: block; }.closing p { margin-bottom: 25px; font-size: 28px; }footer .wrap { display: block; }footer .wrap span { display: block; }
}
@media (max-width: 390px) { .hero h1 { font-size: 60px; }.hero-subtitle { font-size: 25px; }.hero-description { font-size: 12px; }.flow-step small { display: none; }.section-title { font-size: 33px; }.signal { font-size: 11px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }.reveal { opacity: 1; transform: none; } }

.premise-solution { margin-top: 66px; padding: 34px; border: 1px solid #e2ebfc; border-radius: 30px; background: linear-gradient(135deg, #eef5ff, #fff 58%, #f5f8ff); box-shadow: 0 22px 55px rgba(69,105,165,.08); }
.premise-solution-intro { display: grid; grid-template-columns: .96fr 1fr; align-items: end; gap: 45px; }
.premise-solution-label { margin-bottom: 13px; color: var(--blue); font-size: 10px; font-weight: 830; letter-spacing: .16em; }
.premise-solution h3 { margin: 0; font-size: clamp(25px, 3vw, 38px); font-weight: 750; letter-spacing: -.055em; line-height: 1.36; }
.premise-solution-intro > p { max-width: 500px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.premise-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 29px; }
.premise-flow-step { position: relative; min-height: 112px; padding: 17px 18px; border: 1px solid #e2ebf9; border-radius: 18px; background: #fff; transition: transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s, border-color .28s; cursor: default; }
/* 第 3 条：鼠标悬停上浮（复用 .capability 的既有动效语言，保持一致） */
.premise-flow-step:hover { transform: translateY(-6px); border-color: rgba(77,139,240,.45); box-shadow: 0 18px 38px rgba(64,112,178,.16); }
@media (prefers-reduced-motion: reduce) { .premise-flow-step { transition: none; } .premise-flow-step:hover { transform: none; } }
.premise-flow-step:not(:last-child)::after { content: "→"; position: absolute; z-index: 1; top: 42px; right: -13px; display: grid; place-items: center; width: 17px; height: 20px; color: #5b8de8; font-size: 18px; }
.premise-flow-step span { display: block; margin-bottom: 7px; color: var(--blue); font-size: 10px; font-weight: 820; letter-spacing: .1em; }
.premise-flow-step strong { display: block; font-size: 15px; font-weight: 780; }
.premise-flow-step small { display: block; margin-top: 3px; color: #7889a3; font-size: 11px; }

@media (max-width: 1080px) {
  .premise-solution-intro { gap: 30px; }
}
@media (max-width: 760px) {
  .premise-solution { margin-top: 43px; padding: 23px; border-radius: 23px; }
  .premise-solution-intro { grid-template-columns: 1fr; gap: 16px; }
  .premise-solution-intro > p { font-size: 13px; }
  .premise-flow { grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 22px; }
  .premise-flow-step { min-height: 105px; padding: 13px; }
  .premise-flow-step::after { display: none !important; }
  .premise-flow-step strong { font-size: 13px; }
  .premise-flow-step small { font-size: 10px; }
}

/* ==========================================================================
   整屏分页与视觉统一（2026-10-10 用户定案）
   --------------------------------------------------------------------------
   需求要点：
   1. hero 上方留白过多 → 压缩，各板块**固定为一屏**，滚动时整屏切换、不"跳页"；
   2. 背景统一蓝色渐变，消除原先白/蓝相间的"分块感"；
   实现策略：给每个 section 统一「最小高度 = 一屏 − 顶部导航占位」+ 纵向居中，
   并用 scroll-snap 让每次滚动正好停在一屏（内容不足一屏时也不会露出半截下屏）。
   ========================================================================== */

/* 滚动容器：整屏吸附（mandatory = 强制吸附，滚一次正好一页） */
html {
  scroll-snap-type: y mandatory;
}

/* 统一各板块：**固定一屏高**（height 而非 min-height —— 内容多也不会长过一屏，
   从而保证"一屏只装一页"）+ **垂直居中**（第 3 条：原 flex-start 会让内容少时下方空一大块，
   显得没居中）。顶部留白由各板块 padding 控制，避免压到固定导航。 */
.hero,
.premise,
.capabilities,
.system,
.governance,
.knowledge,
.ownership,
.closing {
  height: 100svh;
  max-height: 100svh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  /* 背景统一：不再各自刷白/刷蓝，全部透出 body 的蓝渐变 */
  background: transparent;
}

/* hero 例外：保持自己的上留白策略（导航 82px + 呼吸位），不做垂直居中，
   否则大标题会被顶到中间、上方又出现用户反馈过的"留白太多"。 */
.hero { justify-content: flex-start; }
/* hero 内容区：把标题组与底部引导条之间的空白均匀化，避免中下部留白过多 */
.hero > .wrap { display: flex; flex-direction: column; justify-content: center; min-height: 0; }
.hero-content { margin-bottom: 0; }

/* 各板块原有的上下 padding 大幅收紧（原为 120~175px，是"留白太多"的主因）
   —— 顶部统一 96px 让出固定导航，底部 44px */
.hero { height: 100svh; padding: 132px 0 40px; }
.hero .wrap { min-height: 0; }
.hero-content { padding-top: 0; }
.hero h1 { font-size: clamp(64px, 7.4vw, 116px); margin-bottom: 22px; }
.hero-subtitle { margin-bottom: 22px; font-size: clamp(24px, 2.6vw, 38px); line-height: 1.42; }
.hero-description { margin-bottom: 30px; }
/* hero 右侧展示区随高度自适应，避免小屏溢出 */
.hero-visual { top: 44%; transform: translateY(-50%); height: 430px; }
.glass-flow { min-height: 330px; }

.premise { padding: 92px 0 92px; }
.premise-line { margin-top: 44px; padding: 19px 0; }
.premise-solution { margin-top: 44px; }

.capabilities { padding: 92px 0 92px; }
.capability { min-height: 0; }  /* 取消 446px 固定高，改由内容撑开，避免破屏 */

.system { padding: 90px 0 90px; }
.governance { padding: 90px 0 90px; }
.knowledge { padding: 90px 0 90px; }
.ownership { padding: 90px 0 90px; }

.closing { padding: 72px 0; }

/* 第 10 条：末尾板块重做 —— 用品牌名收尾（Agent_Flux_.）+ 副标题，整屏居中 */
.closing-inner { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 26px; }
.closing-title { margin: 0; font-size: clamp(56px, 8.2vw, 128px); font-weight: 760; letter-spacing: -.085em; line-height: 1; }
.closing-title em { color: var(--blue); font-style: normal; }
.closing-title > span { color: #92b6ff; }
.closing-dot { color: var(--ink) !important; }
.closing-sub { margin: 0; color: var(--ink); font-size: clamp(22px, 2.6vw, 38px); font-weight: 710; letter-spacing: -.06em; line-height: 1.42; }
.closing-sub em { color: var(--blue); font-style: normal; }
.closing-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 6px; }
.closing-actions .button-primary { padding: 0 27px; min-height: 52px; }

/* 笔记本高度不足（≤780px）时：**保持一屏吸附**，改为收紧内部间距与字号，不再取消一屏 */
@media (max-height: 780px) {
  .hero { padding: 104px 0 32px; }
  .hero h1 { font-size: clamp(52px, 6.4vw, 84px); margin-bottom: 16px; }
  .hero-subtitle { font-size: clamp(20px, 2.2vw, 30px); margin-bottom: 16px; }
  .hero-description { margin-bottom: 22px; font-size: 14px; }
  .hero-metadata { margin-top: 18px; padding-top: 12px; }
  .premise, .capabilities, .system, .governance, .knowledge, .ownership { padding: 92px 0 44px; }
  .closing { padding: 56px 0; }
  .section-title { font-size: clamp(30px, 3.6vw, 46px); margin-bottom: 16px; }
  .capability { min-height: 0; }
}
/* 窄屏/手机：改为自适应高度 + 取消整屏吸附（手机上一屏装不下长内容，强撑会溢出） */
@media (max-width: 760px) {
  html { scroll-snap-type: none; }
  .hero, .premise, .capabilities, .system, .governance, .knowledge, .ownership, .closing {
    height: auto;
    max-height: none;
    min-height: 0;
    overflow: visible;
    padding: 104px 0 56px;
  }
}
/* 尊重「减少动效」偏好：关闭滚动吸附 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; scroll-snap-type: none; }
}

/* 说明：hero 底部说明行已改为流内元素（见上方 .hero-metadata 规则），此处旧的 absolute 覆盖方案已移除。 */

/* ==========================================================================
   导航高亮发光（2026-10-11 用户要求）
   --------------------------------------------------------------------------
   需求：「导航条的数量和内容，和网页的板块没有对应上」+「到了对应的板块，
   希望有发光效果表示正在这一行」。
   做法：导航项与 7 个内容板块一一对应（data-section），用 IntersectionObserver/
   滚动监听给当前板块对应的导航项加 .is-active，呈现蓝色发光 + 下划线。
   ========================================================================== */
.nav-links { gap: 32px; }
.nav-links a {
  position: relative;
  padding: 6px 2px;
  transition: color .3s, text-shadow .3s;
  white-space: nowrap;
  letter-spacing: .08em;
}
.nav-links a.is-active {
  color: var(--blue);
  font-weight: 780;
  text-shadow: 0 0 12px rgba(36, 104, 239, .55), 0 0 26px rgba(36, 104, 239, .28);
}
@media (max-width: 1080px) { .nav-links { gap: 22px; } .nav-links a { font-size: 11px; } }

/* ==========================================================================
   第 4 条：滚动切换的「放慢 + 淡出淡入」效果（2026-10-11 用户要求）
   --------------------------------------------------------------------------
   用户原话：「上下滑动的动画太快了，放慢并做淡出淡入效果」。
   实现：
   1. 滚动行为放慢 —— html scroll-behavior 由 CSS 接管（配合 JS 自定义缓动 900ms）；
   2. 板块切换淡入淡出 —— 未进入视口的板块降透明度 + 轻微缩放，进入后 520ms 淡入到 1；
   3. 尊重 prefers-reduced-motion（关闭全部动效）。
   ========================================================================== */
.hero, .premise, .capabilities, .system, .governance,
.knowledge, .ownership, .closing {
  transition: opacity .52s ease, transform .52s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
/* 未激活的板块：淡出并轻微下沉（营造"翻页"的层次感） */
.hero:not(.is-current), .premise:not(.is-current), .capabilities:not(.is-current),
.system:not(.is-current), .governance:not(.is-current), .knowledge:not(.is-current),
.ownership:not(.is-current), .closing:not(.is-current) {
  opacity: .55;
  transform: scale(.992);
}
/* 当前板块：完全显现 */
.is-current { opacity: 1; transform: scale(1); }

@media (prefers-reduced-motion: reduce) {
  .hero, .premise, .capabilities, .system, .governance,
  .knowledge, .ownership, .closing { transition: none; opacity: 1; transform: none; }
}

/* 第 3 条：末尾板块的页脚小字置底（用户要求「图2 的小字应该是置底」）。
   做法：closing 内容居中，footer 用 margin-top:auto 压到板块最底部；
   并把 closing 的内边距调匀，避免 footer 紧贴视口下沿。 */
.closing { justify-content: center; padding: 0; }
.closing-inner { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px; }
.closing > .wrap, .closing footer { width: 100%; }
.closing footer { margin-top: auto; padding: 20px 0 26px; border-top: 1px solid var(--line); }
.closing footer .wrap { width: min(100% - 88px, 1220px); margin-inline: auto; }