/* 来数调研官网 · 企业蓝 / 参考腾讯问卷的蓝、白、浅灰配色 */
:root{
  --brand:#1f6fff;--brand-2:#77a6ff;--cyan:#57bdca;--gold:#8b9dbd;--gold-2:#c8d5e9;
  --navy-deep:#161d2b;--navy:#202735;--navy-2:#39475c;--navy-3:#64748b;
  --bg:#fff;--bg-soft:#f5f7fb;--bg-blue:#edf3ff;--line:#e7ebf2;--line-strong:#cfd8e6;
  --text:#202735;--muted:#727b8b;--white:#fff;--radius:12px;--radius-sm:6px;
  --shadow-sm:0 4px 18px #243f6905;--shadow:0 12px 36px #243f690b;--shadow-lg:0 24px 60px #19386a15;
  --font:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;--font-display:var(--font);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{font:15px/1.8 var(--font);background:#fff;color:var(--text);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}
img,svg{vertical-align:middle;max-width:100%}a{color:inherit;text-decoration:none}ul{list-style:none}
::selection{color:#124698;background:#dce9ff}:focus-visible{outline:3px solid #8db5ff;outline-offset:4px}
[hidden]{display:none!important}
.skip-link{position:fixed;left:20px;top:-100px;z-index:300;padding:10px 20px;background:#fff;border:1px solid var(--brand);border-radius:6px}.skip-link:focus{top:15px}
.view{display:none}.view.active{display:block}.container{max-width:1280px;margin:auto;padding:0 40px;min-width:0}
.section{padding:88px 0}.section-soft{background:var(--bg-soft)}.section-blue{background:#f1f6ff}
.section-head{max-width:900px;text-align:center;margin:0 auto 44px}.kicker{display:block;color:var(--brand);font-size:14px;font-weight:500;letter-spacing:.02em;margin-bottom:12px}
.section-head h2{font-size:34px;font-weight:600;line-height:1.5;letter-spacing:-.025em}.section-head p{font-size:15px;color:var(--muted);margin-top:15px;line-height:1.9}.section-head.l{text-align:left;margin-left:0}
.grid{display:grid;gap:24px;min-width:0}.grid>*{min-width:0}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.text-link{display:inline-flex;align-items:center;gap:9px;color:var(--brand);font-size:14px;font-weight:500}.text-link svg{width:17px;height:17px;transition:transform .2s}.text-link:hover svg{transform:translateX(4px)}
.btn{border:1px solid transparent;border-radius:6px;display:inline-flex;justify-content:center;align-items:center;gap:14px;min-height:44px;padding:11px 23px;font-size:14px;line-height:1.6;font-weight:500;transition:background .2s,box-shadow .2s,transform .2s}
.btn svg{width:18px;height:18px}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:#135ee4;box-shadow:0 5px 16px #1f6fff20}
.btn-lg{padding:14px 28px;font-size:16px;min-height:52px}.btn-ghost,.btn-ghost-dark{background:#fff;border-color:var(--line-strong);color:#39475c}.btn-ghost:hover,.btn-ghost-dark:hover{color:var(--brand);border-color:#8db5ff;background:#f7faff}
.btn-white{background:#fff;color:var(--brand);border-color:#fff}.btn-white:hover{background:#f0f5ff;box-shadow:0 6px 20px #003ab11a}.btn-outline-white{background:transparent;color:#fff;border-color:#ffffff80}.btn-outline-white:hover{background:#ffffff16;border-color:#fff}

/* 简洁产品导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:#fffffffa;border-bottom:1px solid #edf0f5;backdrop-filter:blur(12px)}.nav.scrolled{box-shadow:0 3px 18px #162e5106}
.nav-inner{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{display:inline-flex;align-items:center;flex-shrink:0}.brand-lockup{width:170px;height:auto;display:block}
.nav-links{display:flex;align-items:center;gap:3px}.nav-links>a{position:relative;font-size:14px;color:#525d6f;padding:12px 12px;white-space:nowrap;font-weight:400;transition:color .2s}.nav-links>a:hover,.nav-links>a.active{color:var(--brand)}
.nav-links>a.active::after{content:'';position:absolute;width:20px;height:2px;background:var(--brand);bottom:3px;left:calc(50% - 10px)}.nav-cta{margin-left:18px}.nav-cta .btn{padding:11px 24px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:6px;flex-shrink:0}.nav-toggle span{width:18px;height:2px;background:#3a475d;transition:transform .2s,opacity .2s}.nav-toggle.open span:first-child{transform:translateY(7px) rotate(45deg)}.nav-toggle.open span:nth-child(2){opacity:0}.nav-toggle.open span:last-child{transform:translateY(-7px) rotate(-45deg)}

/* 蓝色首屏与产品界面 */
.hero{position:relative;margin-top:80px;padding:68px 0 170px;text-align:center;color:#fff;background:linear-gradient(118deg,#0b50d8 0%,#1767ed 44%,#2385ef 77%,#1b9dd3 100%);overflow:hidden}
.hero::before{content:'';position:absolute;width:770px;height:770px;right:-170px;top:-440px;border:1px solid #ffffff12;border-radius:50%;box-shadow:0 0 0 64px #ffffff04,0 0 0 128px #ffffff03,0 0 0 192px #ffffff03;pointer-events:none}
.hero::after{content:'';position:absolute;width:700px;height:700px;left:-520px;bottom:-390px;border:1px solid #ffffff14;border-radius:50%;box-shadow:0 0 0 70px #ffffff02;pointer-events:none}
.hero-content{position:relative;z-index:1}.hero-kicker{font-size:15px;font-weight:400;letter-spacing:.1em;color:#dbeaff;margin-bottom:18px}
.hero h1{font-size:52px;line-height:1.4;font-weight:600;letter-spacing:.015em}.hero-sub{color:#d8e7ff;font-size:16px;line-height:1.9;margin:22px auto 0;max-width:760px}.hero-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;margin-top:30px}.hero-actions .btn{min-width:188px}.hero-keywords{display:flex;justify-content:center;align-items:center;gap:19px;margin-top:29px;color:#c4ddff;font-size:12px}.hero-keywords i{height:10px;width:1px;background:#ffffff3d}
.product-showcase{position:relative;z-index:2;margin-top:-120px;max-width:1180px}
.product-screen{border:1px solid #e4e9f1;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 18px 50px #254c9415}
.screen-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 22px;border-bottom:1px solid var(--line);min-height:60px;background:#fff}
.screen-brand{display:flex;align-items:center;gap:8px;white-space:nowrap}.screen-brand svg{width:22px;height:22px;color:var(--brand)}.screen-brand b{font-size:15px;font-weight:600}.screen-brand>span{font-size:11px;color:#7e8797;padding-left:13px;margin-left:5px;border-left:1px solid var(--line)}.screen-title{font-size:12px;color:#526078;display:flex;gap:9px;align-items:center}.screen-title span{font-size:9px;background:#f0f4fa;color:#8b96a7;padding:1px 6px;border-radius:3px}.screen-label{font-size:10px;color:#9ba5b5}
.screen-layout{display:grid;grid-template-columns:175px minmax(0,1fr) 225px;min-height:315px}
.screen-toolbox{padding:23px 19px;border-right:1px solid var(--line);background:#fff}.screen-eyebrow{display:block;font-size:11px;font-weight:500;color:#64738a;margin-bottom:16px}.screen-tools{display:grid;grid-template-columns:1fr 1fr;gap:10px}.screen-tools>div{display:flex;align-items:center;flex-direction:column;gap:4px;padding:9px 3px;border:1px solid #e9edf4;border-radius:5px;color:#5f6b7e;font-size:10px;background:#fff}.screen-tools i{font-style:normal;font-size:14px;color:#7294c9;line-height:1.3}.screen-tool-note{font-size:10px;color:#a1abbb;line-height:1.8;margin-top:18px}
.screen-editor{background:#f3f6fb;padding:0 23px 23px;min-width:0}.screen-editor-tabs{display:flex;gap:24px;padding:12px 0;font-size:10px;color:#8a95a8}.screen-editor-tabs b{font-weight:500;color:var(--brand)}.screen-paper{background:#fff;padding:21px 26px 20px;border:1px solid #e9edf4;box-shadow:0 3px 10px #243f6903;border-radius:4px}.paper-title{text-align:center;font-size:16px;font-weight:600;color:#30415c;margin-bottom:7px}.screen-paper>p{text-align:center;font-size:10px;color:#9ca5b3;margin-bottom:21px}.paper-question{display:flex;align-items:start;gap:7px;position:relative;flex-wrap:wrap}.paper-question>span{font-size:10px;color:var(--brand);font-weight:600;line-height:20px}.paper-question strong{font-size:12px;font-weight:500;line-height:20px}.paper-question small{font-size:9px;color:#a0a9b8;margin:0 0 0 auto;line-height:20px}.paper-options{margin-top:12px;padding-left:21px;display:grid;gap:7px}.paper-options>div{display:flex;align-items:center;gap:8px;font-size:10px;color:#778399;border:1px solid #eef0f5;padding:8px 11px;border-radius:4px}.paper-options i{width:10px;height:10px;border:1px solid #c4cfdf;border-radius:50%;flex-shrink:0}.paper-options .chosen{background:#f1f6ff;border-color:#b9d2ff;color:#3b79dc}.paper-options .chosen i{border:3px solid #4c87ed}.paper-options span{margin-left:auto;color:#86a8dc;font-size:9px}
.screen-summary{border-left:1px solid var(--line);padding:23px 25px;background:#fff}.screen-stages{display:grid;gap:17px}.screen-stages>div{display:flex;align-items:center;gap:11px}.screen-stages i{height:22px;width:22px;flex-shrink:0;font-size:10px;display:grid;place-items:center;background:#f2f4f8;color:#9ca9bd;border-radius:50%;font-style:normal;position:relative}.screen-stages>div:not(:last-child) i::after{content:'';position:absolute;height:22px;width:1px;background:#e9edf4;top:26px;left:50%}.screen-stages .done i{background:#eaf2ff;color:var(--brand)}.screen-stages .current i{background:var(--brand);color:#fff}.screen-stages b{display:block;font-size:11px;font-weight:500;color:#71809a;line-height:1.5}.screen-stages small{display:block;font-size:9px;color:#a7b0bf;line-height:1.5;margin-top:3px}.screen-stages .current b{color:var(--brand)}.screen-summary-note{font-size:10px;color:#96a6be;border-top:1px solid #edf0f5;padding-top:14px;margin-top:22px;line-height:1.8}
.capability-band{padding:44px 0 49px;background:#fff}.capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.capability-item{display:flex;align-items:center;gap:13px;min-width:0}.capability-item>svg{width:29px;height:29px;flex-shrink:0;color:#4b86e9}.capability-item b{display:block;font-size:15px;font-weight:500;margin-bottom:4px}.capability-item span{display:block;font-size:11px;color:#919bad;line-height:1.7}

/* 应用场景 */
.scene-section{background:#f4f6fb}.card{position:relative;background:#fff;padding:29px 26px;border:1px solid var(--line);border-radius:var(--radius);transition:border-color .2s,box-shadow .2s,transform .2s;min-width:0}.card:hover{border-color:#bbd0f5;box-shadow:var(--shadow);transform:translateY(-3px)}.card h3{color:var(--navy);font-size:18px;font-weight:600;line-height:1.6;margin-bottom:11px}.card p{color:var(--muted);font-size:14px;line-height:1.9}.card .ico{width:44px;height:44px;border-radius:8px;background:#eef4ff;display:grid;place-items:center;margin-bottom:19px}.card .ico svg{width:23px;height:23px;stroke:var(--brand)}.card .no{position:absolute;right:25px;top:26px;font-size:11px;color:#a9b7cc}.card .tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}.card .tags span{color:#6689bf;background:#f0f5ff;border:1px solid #e5edfc;padding:4px 9px;border-radius:4px;font-size:11px}.card-more{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:var(--brand);margin-top:18px}.card-more svg{width:15px;height:15px}
.case-card{display:flex;flex-direction:column;padding:27px 27px 24px;border-color:#edf0f6;box-shadow:0 3px 12px #24416a02;border-radius:10px}.case-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}.case-icon{width:36px;height:36px;background:#edf4ff;color:var(--brand);display:grid;place-items:center;border-radius:7px}.case-icon svg{width:22px;height:22px}.case-category{color:#8f9bb0;font-size:11px}.case-card h3{font-size:18px;font-weight:500;line-height:1.65;margin-bottom:11px}.case-card>p{font-size:13px;line-height:1.95;margin-bottom:23px;flex:1}.case-focus{display:flex;flex-wrap:wrap;gap:7px;border-top:1px solid #edf0f5;padding-top:17px}.case-focus span{background:#f4f7fc;border-radius:4px;padding:3px 8px;color:#8b9ab1;font-size:10px}.section-tail{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px}.section-tail>p{font-size:11px;color:#8c98aa}.section-tail .text-link{font-size:13px}

/* 可交互工作流程 */
.workflow-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:820px;margin:0 auto 49px;border-bottom:1px solid #e8edf5;gap:14px}.workflow-tab{position:relative;border:0;background:transparent;color:#7d889a;display:flex;align-items:center;justify-content:center;gap:10px;padding:15px 9px 19px;font-size:15px}.workflow-tab span{font-size:11px;font-family:Arial,sans-serif;color:#a1afc4}.workflow-tab::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:2px;background:transparent}.workflow-tab.active{color:var(--brand);font-weight:500}.workflow-tab.active span{color:#518df5}.workflow-tab.active::after{background:var(--brand)}.workflow-tab:hover{color:var(--brand)}
.workflow-panel{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:80px;padding:0 30px;min-height:375px}.workflow-copy{min-width:0}.workflow-number{font-size:12px;color:var(--brand);font-weight:500}.workflow-copy h3{font-size:30px;font-weight:600;line-height:1.6;margin:15px 0 18px}.workflow-copy>p{font-size:14px;color:var(--muted);line-height:1.95;max-width:430px}.feature-list{margin:22px 0 25px;display:grid;gap:9px}.feature-list li{font-size:13px;color:#61718b;display:flex;gap:10px;align-items:start}.feature-list li::before{content:'✓';color:var(--brand);font-size:12px}
.workflow-demo{min-width:0;border:1px solid #e4eaf5;border-radius:10px;box-shadow:0 12px 40px #264f9b0b;background:#fff;padding:26px;min-height:340px}.demo-header{display:flex;justify-content:space-between;gap:12px;align-items:center;padding-bottom:18px;border-bottom:1px solid #edf0f6;margin-bottom:22px}.demo-header b{font-size:14px;font-weight:500}.demo-header>span{font-size:10px;color:#8a9bb5}.template-demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.template-demo{padding:20px 16px;border:1px solid #e7edf6;border-radius:6px;background:#fcfdff;display:flex;align-items:start;flex-direction:column}.template-demo svg{width:25px;height:25px;color:#78a1e4;margin-bottom:12px}.template-demo b{font-size:12px;font-weight:500}.template-demo span{font-size:9px;color:#99a7bd;margin-top:5px}.template-demo.blank{border-color:#a9c8ff;background:#f5f9ff}.template-demo.blank svg{color:var(--brand)}.demo-caption{font-size:10px;line-height:1.8;color:#a0aec3;margin-top:19px}
.matrix-demo>b{font-size:13px;font-weight:500;display:block;margin-bottom:19px}.matrix-head,.matrix-row{display:grid;grid-template-columns:1.3fr repeat(3,1fr);align-items:center;text-align:center;gap:7px}.matrix-head{background:#f2f6fc;padding:11px 9px;color:#8a9bb6;font-size:10px}.matrix-row{padding:14px 9px;border-bottom:1px solid #edf0f6}.matrix-row span{font-size:11px;text-align:left;color:#6f7f97}.matrix-row i{width:11px;height:11px;border:1px solid #bdcce3;border-radius:50%;margin:auto}.matrix-row i.selected{border:3px solid #5f92eb}.logic-demo{display:flex;justify-content:space-between;gap:15px;background:#f1f6ff;border-radius:5px;padding:12px 13px;margin-top:22px;font-size:10px;color:#5c84c5}.logic-demo b{font-weight:400}.quota-demo{display:grid;gap:0}.quota-demo>div{padding:13px 0;display:grid;grid-template-columns:76px 1fr;gap:12px;align-items:center;border-bottom:1px solid #edf0f6}.quota-demo>div>span{font-size:11px;color:#98a6ba}.quota-demo b{font-size:12px;font-weight:400;color:#62738e}.demo-tags{display:flex;flex-wrap:wrap;gap:6px}.demo-tags i{font-style:normal;font-size:10px;background:#f0f5ff;color:#6c91ce;padding:4px 7px;border-radius:3px}.demo-notice{display:flex;gap:8px;align-items:center;font-size:11px;line-height:1.8;color:#7d98be;background:#f2f7ff;border-radius:5px;padding:12px 13px;margin-top:20px}.demo-notice svg{height:16px;width:16px;flex-shrink:0}.report-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.report-kpis>div{background:#f5f8fd;border:1px solid #edf1f8;border-radius:5px;padding:12px}.report-kpis span{display:block;font-size:10px;color:#8b9bb3;margin-bottom:4px}.report-kpis b{font-size:22px;font-family:Arial,sans-serif;font-weight:500;color:#3c5b89}.report-kpis small{font-size:10px;margin-left:3px;color:#8a9fbf}.report-bars{display:flex;align-items:end;gap:13px;height:128px;margin:25px 5px 10px;border-bottom:1px solid #e7edf6;background:repeating-linear-gradient(to top,#fff 0,#fff 30px,#f1f4fa 31px,#fff 32px)}.report-bars i{height:var(--bar);background:#78a6f7;flex:1;border-radius:3px 3px 0 0;max-height:100%}.report-bars i:nth-child(2n){background:#b1cbf8}.report-axis{display:flex;justify-content:space-between;font-size:9px;color:#a3b0c3}

/* 样本服务与图表 */
.sample-library-grid{display:grid;grid-template-columns:.95fr 1.05fr;align-items:center;gap:80px}.sample-library-copy h2{font-size:34px;line-height:1.55;font-weight:600;letter-spacing:-.025em}.sample-library-copy>p{font-size:14px;color:var(--muted);max-width:440px;line-height:2;margin-top:20px}.sample-points{display:flex;flex-wrap:wrap;gap:17px;font-size:12px;color:#6c82a3;margin:24px 0 28px}.sample-points span{display:flex;align-items:center;gap:5px}.sample-points span::before{content:'✓';color:#6295eb;font-size:11px}
.audience-panel{background:#fff;border:1px solid #e3eaf5;border-radius:10px;box-shadow:0 10px 35px #254a8205;padding:28px;min-width:0}.audience-header{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #edf0f6;padding-bottom:20px;margin-bottom:23px}.audience-header b{font-size:15px;font-weight:500}.audience-header>span{font-size:10px;color:#7c9fda;padding:3px 8px;border-radius:4px;background:#eff5ff;white-space:nowrap}.audience-filter{margin-bottom:25px}.audience-filter label{display:block;font-size:12px;color:#8997ac;margin-bottom:12px}.audience-filter>div{display:flex;gap:9px;flex-wrap:wrap}.audience-filter>div>span{font-size:12px;color:#637b9e;border:1px solid #e2e9f4;padding:7px 13px;border-radius:5px;background:#fbfcff}.audience-filter>div>span:first-child{color:#4281ed;background:#f1f6ff;border-color:#aacaff}.audience-result{background:#f4f8ff;display:flex;gap:14px;align-items:center;padding:17px;border-radius:6px;margin-top:8px}.audience-result svg{width:29px;height:29px;color:#6999e8;flex-shrink:0}.audience-result b{font-size:12px;font-weight:500;color:#5679ab}.audience-result p{font-size:10px;color:#94a6c1;margin-top:4px;line-height:1.8}
.chart-panel{min-width:0;max-width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:27px;box-shadow:var(--shadow-sm)}.chart-panel h4{font-size:15px;font-weight:500;color:var(--text);margin-bottom:5px}.chart-panel .cap{font-size:12px;color:#929daf;margin-bottom:18px}.chart-heading{display:flex;align-items:start;justify-content:space-between;gap:10px}.chart-tag{font-size:10px;color:#7c9acc;background:#f1f6ff;border-radius:4px;padding:4px 8px;white-space:nowrap}.chart-box{height:260px;width:100%;max-width:100%;min-width:0;overflow:hidden}.chart-box.tall{height:320px}.analytics-note{font-size:11px;color:#98a3b5;text-align:center;margin-top:23px}

/* 内页 */
.page-hero{padding:145px 0 63px!important;background:#f2f6fd!important;border-bottom:1px solid #e7edf7;color:var(--text)!important;position:relative;overflow:hidden}.page-hero::after{content:'';position:absolute;width:480px;height:480px;right:-210px;top:-150px;background:linear-gradient(135deg,#e5eeff88,#f3f7ff00);transform:rotate(35deg);pointer-events:none;border:1px solid #e2ecfc;border-radius:50px}.page-hero>.container{position:relative;z-index:1}.page-hero .kicker{font-size:13px!important;color:var(--brand)!important;font-weight:500!important;letter-spacing:.02em!important;margin-bottom:15px!important}.page-hero h1{font:600 clamp(30px,3.2vw,42px)/1.55 var(--font)!important;letter-spacing:-.02em;color:var(--text)!important;max-width:930px}.page-hero p{font-size:15px!important;line-height:1.95!important;color:var(--muted)!important;max-width:740px!important}.page-hero .btn{margin-top:5px}
.feat h3{font-weight:600!important}.feat .kicker{font-size:12px!important;font-weight:500!important;letter-spacing:.02em!important}.feat>div>p{font-size:14px!important;line-height:2!important}.feat:nth-child(2n){direction:rtl}.feat:nth-child(2n)>*{direction:ltr}.feat .chart-panel{padding:28px}
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid #dbe6f8;border-radius:10px;background:#f1f6ff;padding:33px 14px;color:var(--text)}.stat-strip>div{padding:0 16px;border-right:1px solid #dce6f7;text-align:center}.stat-strip>div:last-child{border-right:0}.stat-strip .n{font-size:28px;font-weight:500;line-height:1.5;color:#527ab7}.stat-strip .n small{font-size:13px;font-weight:400}.stat-strip .l{font-size:12px;margin-top:5px;color:#94a5c0}
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px;counter-reset:steps}.tl-item{position:relative;padding:27px 5px 6px;border-top:1px solid #dce6f4;counter-increment:steps}.tl-item::before{content:'0' counter(steps);display:block;color:#6e9bdf;font-size:26px;font-weight:400;font-family:Arial,sans-serif;line-height:1;margin-bottom:19px}.tl-item::after{content:'→';position:absolute;right:8px;top:25px;font-size:17px;color:#b3c3da}.tl-item:last-child::after{content:none}.tl-item h3{font-size:16px;font-weight:500;margin-bottom:10px}.tl-item p{font-size:13px;color:var(--muted);line-height:1.95;max-width:245px}
.method-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.method-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:25px 22px;position:relative}.method-card .mno{position:absolute;top:20px;right:20px;font-size:11px;color:#a5b4ca}.method-card h3{font-size:16px;font-weight:500;margin-bottom:12px}.method-card p{font-size:13px;color:var(--muted);line-height:1.9;margin-bottom:15px}.method-card .tags span{display:inline-block;background:#f1f5fc;border-radius:4px;color:#7591bc;font-size:10px;padding:3px 8px;margin:3px 2px}
.scene{display:flex;align-items:start;gap:16px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:25px}.scene .ico{width:40px;height:40px;flex-shrink:0;background:#eef4ff;display:grid;place-items:center;border-radius:8px}.scene .ico svg{width:22px;height:22px;stroke:var(--brand)}.scene h4{font-size:16px;font-weight:500;margin-bottom:6px}.scene p{font-size:13px;line-height:1.9;color:var(--muted)}
.compare{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}.compare table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:13px}.compare th,.compare td{padding:17px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}.compare thead th{background:#eff4fd;color:#5677aa;font-weight:500;font-size:14px}.compare thead th:first-child{background:#e8f0fd}.compare td:first-child{background:#f8faff;color:#526780;font-weight:500}.compare tbody tr:last-child td{border-bottom:0}.compare .ok{color:var(--brand);font-weight:500}.compare .no{color:#a0aec0}
.promise-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;margin-top:34px}.promise-item{display:flex;gap:12px;align-items:start;border:1px solid var(--line);border-radius:9px;background:#fff;padding:22px 18px}.promise-item b{display:block;font-weight:500;font-size:13px;margin-bottom:5px}.promise-item span{display:block;font-size:11px;line-height:1.85;color:var(--muted)}.promise-item .pico{width:35px;height:35px;flex-shrink:0;background:#eff5ff;border-radius:7px;display:grid;place-items:center}.pico svg{height:19px;width:19px;stroke:var(--brand)}.sample-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))!important;gap:18px}.page-hero .sample-summary{border-top:1px solid #dbe6f7!important;padding-top:25px}.page-hero .sample-summary>div>div:first-child{font-size:18px!important;font-weight:500!important;color:#5275a8}.page-hero .sample-summary>div>div:last-child{font-size:12px!important;color:#8b9fbf!important}
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);padding:25px 0}.trust-item{display:flex;align-items:center;gap:12px;padding:6px 18px;border-right:1px solid var(--line)}.trust-item:last-child{border-right:0}.trust-item .tic{width:38px;height:38px;background:#f1f6ff;border-radius:7px;display:grid;place-items:center;flex-shrink:0}.trust-item svg{height:20px;width:20px;stroke:var(--brand)}.trust-item b{font-size:13px;font-weight:500;display:block}.trust-item span{font-size:11px;color:var(--muted)}
.contact-info{background:#f0f5ff!important;color:var(--text)!important;border:1px solid #dce7fa}.contact-info h3{font-weight:500!important}.contact-info li span{background:#e4eeff!important}.contact-info svg{height:19px;width:19px;stroke:#7b9ed7!important}.contact-info li div div:first-child{color:#8ba0bf!important}.contact-info li div div:last-child{font-size:14px!important;font-weight:500!important}#contactForm input,#contactForm textarea,#contactForm select{background:#fcfdff;border:1px solid #dce5f3!important;border-radius:6px!important;font-size:14px!important}#contactForm input:focus,#contactForm textarea:focus,#contactForm select:focus{border-color:#8fb6fa!important;box-shadow:0 0 0 3px #1f6fff08}#contactForm label{font-size:13px!important;font-weight:500!important}details summary{display:flex;justify-content:space-between;gap:10px}details summary::after{content:'+';color:#83a1cc;font-weight:400;font-size:17px}details[open] summary::after{content:'−'}

/* 行动区域与页脚 */
.cta-band{padding:64px 0;background:#1263ed;color:#fff;position:relative;overflow:hidden}.cta-band::after{content:'';position:absolute;right:-40px;bottom:-175px;width:500px;height:260px;background:#ffffff04;border:1px solid #ffffff0c;transform:rotate(-20deg);border-radius:22px;pointer-events:none}.cta-inner{max-width:920px;text-align:center;position:relative;z-index:1}.cta-inner h2{font-size:34px;font-weight:600;line-height:1.55;letter-spacing:.01em}.cta-inner p{font-size:15px;color:#bfd7ff;margin-top:14px}.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:15px;margin-top:27px}.cta-band .btn-primary{background:#fff;color:var(--brand);border-color:#fff}.cta-band .btn-primary:hover{background:#edf4ff}.cta-band .btn-ghost-dark,.cta-band .btn-ghost{color:#fff;background:transparent;border-color:#ffffff7a}.cta-band .btn-ghost-dark:hover,.cta-band .btn-ghost:hover{background:#ffffff12;border-color:#fff}
.footer{background:#f7f8fb;color:#8792a4;padding:57px 0 25px}.footer-grid{display:grid;grid-template-columns:1.9fr .8fr .8fr 1.4fr;gap:50px;padding-bottom:36px;border-bottom:1px solid #e3e8f1}.footer .logo{margin-bottom:19px}.footer .brand-lockup{width:160px;filter:none}.footer .about-txt{font-size:12px;line-height:2.05;color:#8e9aaf;max-width:300px}.footer-wordmark{font-size:9px;letter-spacing:.13em;color:#a3afc2;margin-top:18px}.footer h5{font-size:13px;color:#4f5e75;font-weight:500;margin-bottom:15px}.footer a{font-size:12px;padding:5px 0;display:block;transition:color .2s}.footer a:hover{color:var(--brand)}.f-contacts li{display:flex;align-items:start;gap:9px;font-size:11px;line-height:1.9;padding:6px 0}.f-contacts svg{height:14px;width:14px;stroke:#99acc7;flex-shrink:0;margin-top:3px}.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:10px;color:#a4b0c2;padding-top:22px}.ph{font-size:11px;color:#9cadc3;font-style:normal}
.toast{position:fixed;z-index:200;bottom:28px;left:50%;max-width:90vw;padding:14px 23px;border-radius:8px;font-size:13px;text-align:center;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);color:var(--text);opacity:0;visibility:hidden;transform:translate(-50%,20px);transition:opacity .2s,transform .2s}.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}.rv{opacity:0;transform:translateY(16px);transition:opacity .5s,transform .5s}.rv.in{opacity:1;transform:none}

@media(min-width:1600px){.hero{padding-top:80px}.hero h1{font-size:56px}}
@media(max-width:1180px){
 .container{padding-inline:32px}.brand-lockup{width:150px}.nav-inner{gap:20px}.nav-links>a{font-size:13px;padding-inline:8px}.nav-cta{margin-left:10px}.nav-cta .btn{font-size:13px;padding:10px 18px}.workflow-panel{gap:50px;padding-inline:0}.screen-layout{grid-template-columns:160px minmax(0,1fr) 200px}.screen-summary{padding:23px 20px}.screen-editor{padding-inline:20px}.screen-paper{padding-inline:20px}.paper-question small{display:none}.capability-grid{gap:20px}.capability-item{gap:10px}.capability-item>svg{width:25px;height:25px}.capability-item b{font-size:14px}.capability-item span{font-size:10px}.sample-library-grid{gap:50px}.sample-points{gap:13px}.footer-grid{gap:35px}
}
@media(max-width:980px){
 .nav-inner{height:72px}.brand-lockup{width:159px}.nav-toggle{display:flex}.nav-links{display:none;position:fixed;left:0;right:0;top:72px;background:#fff;max-height:calc(100dvh - 72px);overflow-y:auto;padding:17px 30px 24px;flex-direction:column;align-items:stretch;gap:2px;border-bottom:1px solid var(--line);box-shadow:0 12px 28px #243f690a}.nav-links.open{display:flex}.nav-links>a{font-size:14px;padding:11px 13px;min-height:44px;border-radius:5px}.nav-links>a.active{background:#f0f5ff}.nav-links>a.active::after{display:none}.nav-cta{margin:12px 0 0}.nav-cta .btn{width:100%;font-size:14px;padding:12px 20px}
 .hero{margin-top:72px;padding-top:62px}.hero h1{font-size:46px}.hero-sub{font-size:15px}.screen-layout{grid-template-columns:140px minmax(0,1fr) 170px}.screen-top{padding:14px 18px;gap:12px}.screen-brand>span{display:none}.screen-title{font-size:11px}.screen-summary{padding:20px 16px}.screen-editor{padding-inline:15px}.screen-paper{padding:20px 17px}.paper-title{font-size:14px}.paper-question strong{font-size:11px}.screen-toolbox{padding:20px 14px}.paper-options{padding-left:0}.screen-stages small{font-size:8px}.screen-stages b{font-size:10px}.screen-summary-note{font-size:9px}.screen-layout{min-height:310px}
 .capability-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 35px;max-width:760px}.capability-item>svg{width:28px;height:28px}.capability-item b{font-size:14px}.capability-item span{font-size:11px}.capability-band{padding:38px 0}.section{padding:72px 0}.section-head h2{font-size:30px}.case-card{padding:24px 21px}.case-card h3{font-size:16px}.case-card>p{font-size:12px}.case-focus span{font-size:9px}.workflow-panel{gap:33px}.workflow-copy h3{font-size:26px}.workflow-copy>p{font-size:13px}.feature-list li{font-size:12px}.workflow-demo{padding:21px}.template-demo{padding:17px 12px}.template-demo span{font-size:8px}.sample-library-grid{gap:35px}.sample-library-copy h2{font-size:30px}.sample-library-copy>p{font-size:13px}.sample-points{gap:12px;font-size:11px}.audience-panel{padding:23px}.audience-header b{font-size:13px}.audience-filter>div{gap:7px}.audience-filter>div>span{font-size:11px;padding:6px 10px}.audience-result{padding:13px;gap:10px}.audience-result b{font-size:11px}.audience-result p{font-size:9px}.audience-result svg{width:25px;height:25px}.grid-4,.method-grid,.promise-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.sample-summary{grid-template-columns:repeat(2,minmax(0,1fr))!important}.footer-grid{gap:25px;grid-template-columns:1.6fr .7fr .7fr 1.3fr}.footer .brand-lockup{width:140px}.footer .about-txt{font-size:11px}.f-contacts li{font-size:10px}.feat{gap:32px!important}
}
@media(max-width:760px){
 .container{padding-inline:24px}.section{padding:59px 0}.section-head{margin-bottom:30px}.section-head h2{font-size:27px;line-height:1.55}.section-head p{font-size:13px;margin-top:12px}.kicker{font-size:12px;margin-bottom:11px}.grid-2,.grid-3{grid-template-columns:1fr}.grid{gap:17px}
 .hero{padding:51px 0 126px}.hero h1{font-size:38px;line-height:1.5;letter-spacing:0}.hero-kicker{font-size:12px;letter-spacing:.06em;margin-bottom:18px}.hero-sub{font-size:13px;line-height:1.95;margin-top:19px}.hero-actions{gap:12px;margin-top:25px}.hero-actions .btn{min-width:0;padding:13px 20px;font-size:14px;gap:10px}.hero-actions .btn svg{height:16px;width:16px}.hero-keywords{gap:12px;font-size:10px;margin-top:24px}.hero::before{width:520px;height:520px;right:-230px;top:-280px}.hero::after{display:none}.product-showcase{margin-top:-90px;padding-inline:24px}.product-screen{border-radius:8px}.screen-top{min-height:49px;padding:12px 15px}.screen-brand{gap:7px}.screen-brand b{font-size:12px}.screen-brand svg{width:18px;height:18px}.screen-title{display:none}.screen-label{font-size:9px}.screen-layout{grid-template-columns:minmax(0,1fr);min-height:0}.screen-toolbox,.screen-summary{display:none}.screen-editor{padding:0 17px 18px}.screen-editor-tabs{font-size:9px;padding:12px 0;gap:22px}.screen-paper{padding:18px 19px 17px}.paper-title{font-size:14px}.screen-paper>p{font-size:9px;margin-bottom:18px}.paper-question{gap:6px}.paper-question strong{font-size:11px;flex:1}.paper-question>span{font-size:9px}.paper-options{padding-left:0;margin-top:10px;gap:7px}.paper-options>div{font-size:9px;padding:8px 9px}.paper-options span{font-size:8px}.capability-band{padding:30px 0 36px}.capability-grid{gap:22px 15px}.capability-item{align-items:start;gap:9px}.capability-item>svg{width:21px;height:21px;margin-top:2px}.capability-item b{font-size:12px;margin-bottom:5px}.capability-item span{font-size:10px;line-height:1.8;max-width:150px}
 .case-card{padding:25px}.case-top{margin-bottom:18px}.case-card h3{font-size:18px}.case-card>p{font-size:13px;margin-bottom:20px}.case-icon{width:35px;height:35px}.case-category{font-size:11px}.case-focus span{font-size:10px}.section-tail{display:block;margin-top:23px}.section-tail>p{font-size:10px}.section-tail .text-link{margin-top:12px;font-size:12px}
 .workflow-tabs{gap:6px;margin-bottom:29px}.workflow-tab{flex-direction:column;gap:5px;font-size:12px;padding:11px 3px 14px}.workflow-tab span{font-size:10px}.workflow-panel{grid-template-columns:1fr;gap:29px;min-height:0;padding:0}.workflow-copy h3{font-size:26px;line-height:1.55;margin:11px 0 14px}.workflow-copy>p{max-width:100%;font-size:13px}.workflow-number{font-size:11px}.feature-list{margin:18px 0 20px;gap:8px}.feature-list li{font-size:12px}.text-link{font-size:13px}.workflow-demo{min-height:0;padding:22px}.template-demo{padding:19px 14px}.template-demo span{font-size:9px}.demo-header{padding-bottom:16px;margin-bottom:19px}.demo-header b{font-size:13px}.demo-caption{font-size:9px}.matrix-head{font-size:9px}.matrix-row span{font-size:10px}.logic-demo{font-size:9px;padding:11px 10px;gap:7px}.quota-demo>div{grid-template-columns:65px 1fr;gap:8px}.quota-demo b{font-size:11px}.report-kpis>div{padding:10px 8px}.report-kpis b{font-size:20px}.report-kpis span{font-size:9px}.report-bars{gap:10px}.demo-notice{font-size:10px}
 .sample-library-grid{grid-template-columns:1fr;gap:32px}.sample-library-copy h2{font-size:28px}.sample-library-copy>p{font-size:13px;margin-top:16px;max-width:100%}.sample-points{margin:19px 0 24px;font-size:11px;gap:15px}.sample-library-copy .btn{font-size:14px;min-height:46px;padding:12px 20px}.audience-panel{padding:23px}.audience-header b{font-size:13px}.audience-header>span{font-size:9px}.audience-filter>div>span{font-size:11px}.audience-result b{font-size:11px}.audience-result p{font-size:9px}.chart-panel{padding:23px 20px}.chart-panel h4{font-size:14px}.chart-panel .cap{font-size:11px}.chart-tag{font-size:9px}.chart-box{height:230px}.analytics-note{font-size:10px;margin-top:20px}
 .page-hero{padding:119px 0 43px!important}.page-hero h1{font-size:29px!important;line-height:1.6!important}.page-hero p{font-size:13px!important}.page-hero::after{right:-330px;top:-100px;opacity:.6}.page-hero .kicker{font-size:12px!important}.feat{grid-template-columns:1fr!important;gap:26px!important;padding:32px 0!important}.feat:nth-child(2n){direction:ltr}.feat h3{font-size:25px!important}.feat>div>p{font-size:13px!important}.feat .chart-panel{padding:23px}.grid[style*="gap:56px"],.grid[style*="gap:44px"]{gap:29px!important}.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0}.stat-strip>div:nth-child(2){border-right:0}.stat-strip .n{font-size:25px}.timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:27px 23px}.tl-item h3{font-size:15px}.tl-item p{font-size:12px}.method-grid{gap:14px}.method-card{padding:21px 18px}.method-card p{font-size:12px}.promise-strip{gap:12px}.promise-item{padding:18px 15px}.promise-item .pico{display:none}.promise-item b{font-size:12px}.promise-item span{font-size:10px}.sample-summary{gap:18px 14px}.page-hero .sample-summary>div>div:first-child{font-size:16px!important}.page-hero .sample-summary>div>div:last-child{font-size:11px!important}.trust-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.card{padding:25px 23px}.card h3{font-size:17px}.card p{font-size:13px}
 .cta-band{padding:50px 0}.cta-inner h2{font-size:27px}.cta-inner p{font-size:13px}.cta-actions{gap:12px;margin-top:23px}.cta-actions .btn{font-size:14px;min-height:46px;padding:12px 20px;gap:10px}.cta-actions .btn svg{width:16px;height:16px}.footer{padding:42px 0 23px}.footer-grid{grid-template-columns:1fr 1fr;gap:27px 24px;padding-bottom:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:1/-1}.footer .brand-lockup{width:155px}.footer .about-txt{font-size:11px;max-width:100%}.footer-wordmark{font-size:9px;margin-top:14px}.footer h5{font-size:12px;margin-bottom:9px}.footer a{font-size:11px;padding:7px 0}.footer .logo{padding-top:0;margin-bottom:14px}.f-contacts li{font-size:10px}.footer-bottom{font-size:9px;gap:7px;padding-top:20px}
}
@media(max-width:400px){
 .container{padding-inline:21px}.hero h1{font-size:33px}.hero-kicker{font-size:11px}.hero-sub{font-size:12px}.hero-actions .btn{padding:13px 17px;font-size:13px;gap:9px}.hero-keywords{font-size:9px;gap:11px}.product-showcase{padding-inline:21px}.screen-paper{padding:18px 15px}.screen-paper>p{font-size:8px}.paper-title{font-size:13px}.paper-question strong{font-size:10px}.capability-item b{font-size:11px}.capability-item span{font-size:9px}.capability-item>svg{height:19px;width:19px}.capability-item{gap:8px}.section-head h2{font-size:25px}.workflow-demo{padding:19px}.template-demo{padding:17px 12px}.template-demo b{font-size:11px}.template-demo span{font-size:8px}.workflow-copy h3{font-size:25px}.audience-panel{padding:20px}.audience-header b{font-size:12px}.sample-points{gap:11px}.audience-filter>div>span{font-size:10px;padding:6px 9px}.audience-result{padding:13px;gap:10px}.audience-result b{font-size:10px}.audience-result p{font-size:9px}.method-grid,.grid-4{grid-template-columns:1fr}.sample-summary{grid-template-columns:repeat(2,minmax(0,1fr))!important}.compare th,.compare td{padding:12px 9px;font-size:11px}.compare thead th{font-size:11px}.report-kpis b{font-size:18px}.logic-demo{font-size:8px}.cta-actions .btn{font-size:13px;padding:12px 17px}.cta-inner h2{font-size:25px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}.rv{transform:none}}