:root{--green:#096548;--green-dark:#064d3a;--ink:#102034;--muted:#64717b;--cream:#f9f5ef;--line:#e8e3dc;--blue:#166dc9;--brown:#915328;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:#fff;font-family:'Noto Sans TC','PingFang TC','Microsoft JhengHei',system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.28}h2{font-size:clamp(1.6rem,2.5vw,2.15rem);letter-spacing:-.03em}h3{font-size:1.06rem}p{color:var(--muted)}.container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.skip{position:absolute;left:10px;top:-100px;z-index:100;background:#fff;padding:10px}.skip:focus{top:10px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid #eee;backdrop-filter:blur(10px)}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.16rem;white-space:nowrap}.brand-sep{color:#a4a4a4}.main-nav{display:flex;align-items:center;gap:23px;font-size:.9rem;font-weight:650}.main-nav>a:not(.btn):hover{color:var(--green)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;border-radius:999px;padding:12px 25px;font-weight:750;font-size:.94rem;transition:transform .15s,background .15s;white-space:nowrap;border:1px solid transparent}.btn:hover{transform:translateY(-2px)}.btn-green{background:var(--green);color:white}.btn-green:hover{background:var(--green-dark)}.btn-outline{border-color:#9cbcb0;background:white;color:var(--green-dark)}.btn-soft{background:#ccebd7;color:#07513b}.btn-blue{background:#176dd2;color:white}.nav-login{border-radius:7px;padding:10px 19px}.menu-toggle{display:none}.hero{background:radial-gradient(ellipse at 82% 26%,#d8d0c3 0%,#f8f4ee 38%,#fff 77%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:40% 60%;min-height:555px;align-items:center;gap:12px;padding-block:48px 58px}.eyebrow{color:var(--green);font-size:.82rem;letter-spacing:.09em;font-weight:800;margin-bottom:16px}.hero h1{font-size:clamp(2.4rem,4vw,3.5rem);letter-spacing:-.05em;margin-bottom:20px}.keywords{font-weight:800;color:var(--ink);font-size:1.05rem;white-space:nowrap}.keywords b{color:#486052;margin-inline:4px}.hero-desc{font-size:1.02rem;line-height:1.9;max-width:510px;color:#364452}.hero-actions{display:flex;gap:12px;margin-top:28px}.hero-actions .btn{min-width:156px}.fine{font-size:.83rem;margin-top:16px}.device-stage{position:relative;min-height:400px;display:flex;align-items:center;justify-content:center;padding:20px 45px 30px 0}.laptop{position:relative;width:100%;max-width:650px;filter:drop-shadow(0 22px 24px #1b251d2b)}.laptop-screen{background:#14191d;padding:11px;border:3px solid #262d30;border-radius:17px 17px 7px 7px}.laptop-screen img{display:block;width:100%;aspect-ratio:1250/468;object-fit:cover;border-radius:4px}.laptop-base{height:14px;margin:0 -25px;background:linear-gradient(#b6b9b8,#636a6b 75%,#d2d4d2);border-radius:0 0 55% 55%}.phone{position:absolute;width:23%;max-width:150px;right:0;bottom:18px;border:6px solid #161b1e;border-radius:24px;background:#fff;padding:4px;box-shadow:0 15px 20px #0003;overflow:hidden}.phone img{display:block;width:100%;border-radius:15px}.phone-notch{position:absolute;top:7px;left:35%;width:30%;height:8px;background:#161b1e;border-radius:10px;z-index:2}.device-note{position:absolute;top:3px;right:0;transform:rotate(-7deg);background:#ecf6ec;padding:10px 12px;border-radius:9px;font-size:.75rem;font-weight:800;color:var(--green-dark);box-shadow:0 3px 12px #0001}.problem{background:#f3f8f4;padding:38px 0}.problem-inner{display:grid;grid-template-columns:32% 1fr;gap:30px;align-items:center}.problem h2{font-size:1.65rem;margin-bottom:10px}.problem p{margin:0}.problem-flow{display:flex;align-items:center;justify-content:space-between;gap:8px}.source,.flow-result{display:flex;align-items:center;flex-direction:column;gap:7px;text-align:center;min-width:66px}.source span{width:60px;height:60px;border-radius:50%;display:grid;place-items:center;background:white;color:#286c62;font-size:1.7rem;font-weight:800}.source small,.flow-result small{font-size:.74rem;color:#586a70}.flow-arrow{font-size:2.1rem;color:var(--green)}.flow-result{background:#e0eee4;border-radius:14px;padding:16px;min-width:125px}.flow-result strong{font-size:1rem}.section{padding:70px 0}.section-heading{margin-bottom:26px}.section-heading .eyebrow{margin-bottom:8px}.section-heading h2{margin-bottom:8px}.section-heading p:last-child{margin:0}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature-card{border:1px solid var(--line);border-radius:13px;padding:23px;min-height:185px;background:#fff}.feature-icon{display:grid;place-items:center;width:55px;height:55px;border-radius:50%;background:#e8f2ed;color:var(--green);font-size:1.7rem;margin-bottom:14px}.feature-icon.orange{color:#ef8c1a;background:#fff4e6}.feature-card h3{margin-bottom:6px}.feature-card p{font-size:.9rem;margin:0}.disclaimer{font-size:.78rem;margin:17px 0 0;color:#6e7780}.collaboration{background:#fbfaf8}.roles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}.roles article{padding:18px}.roles span{display:grid;place-items:center;width:70px;height:70px;margin:0 auto 15px;border-radius:50%;background:#e9f2ee;color:var(--green);font-size:2rem}.roles h3{margin-bottom:4px}.roles p{font-size:.84rem}.device-strip{margin-top:20px;padding:17px 22px;border-radius:12px;background:white;border:1px solid var(--line);font-weight:750;text-align:center}.device-strip span{color:var(--muted);font-weight:400;margin-left:14px}.pricing-section{background:#fff}.pricing-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px}.pricing-heading .eyebrow{margin-bottom:8px}.pricing-heading h2{margin-bottom:6px}.pricing-heading p:last-child{margin:0}.billing{display:flex;gap:10px;align-items:center;white-space:nowrap;font-size:.82rem}.segmented{display:flex;border:1px solid #d4dfd9;border-radius:40px;padding:4px;background:#f7faf8}.segmented button{border:0;background:none;padding:7px 12px;border-radius:40px;color:#527064}.segmented button.active{background:var(--green);color:#fff}.pricing-notice{font-size:.79rem;color:#9b602f;margin-bottom:14px}.pricing-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.plan{border:1px solid #dfe4e7;border-radius:12px;padding:23px 18px;display:flex;flex-direction:column;min-width:0}.plan.lite{background:#f5fcf7;border-color:#a5d5b5}.plan.pro{border:2px solid var(--blue);background:#f7fbff;padding:22px 17px}.plan-code{font-weight:800;color:#30604e;font-size:.75rem;letter-spacing:.07em}.plan-tag{background:#13734e;color:white;border-radius:20px;padding:4px 10px;font-size:.7rem;font-weight:800;align-self:start;margin-top:6px}.plan-tag.blue{background:#1672d4}.plan h3{font-size:1.45rem;margin:14px 0 4px}.plan-audience{font-size:.82rem;margin:0 0 14px}.price{display:flex;align-items:baseline;gap:4px;color:var(--ink);margin:0}.price small{font-size:.85rem;font-weight:800}.price strong{font-size:clamp(1.55rem,2.35vw,2.15rem);letter-spacing:-.03em;line-height:1.2}.price span{font-size:.8rem;color:#4d5d65}.billing-note{font-size:.72rem;min-height:19px;margin:5px 0 15px}.plan-limits,.checklist{list-style:none;padding:15px 0;margin:0;border-top:1px solid #e5e8e7;font-size:.86rem}.plan-limits li,.checklist li{position:relative;padding-left:23px;margin:6px 0}.plan-limits li:before{content:'▣';position:absolute;left:0;color:var(--green)}.checklist li:before{content:'✓';position:absolute;left:0;color:white;background:#26946b;width:16px;height:16px;line-height:16px;border-radius:50%;text-align:center;font-size:.7rem;top:4px}.included{font-size:.8rem;font-weight:700;color:#314450;margin:8px 0 0}.plan .btn{margin-top:auto;border-radius:7px;padding:10px 5px;font-size:.86rem}.custom-plan{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#f6f8f9;padding:20px 28px;border-radius:12px;margin-top:15px}.custom-plan h3{margin:0 0 5px}.custom-plan p{margin:0;font-size:.88rem}.security-section{background:#f7faf8}.security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.security-grid article{background:white;border:1px solid #e5ebe6;border-radius:13px;padding:20px}.security-grid span{font-size:1.8rem;color:var(--green)}.security-grid h3{margin:8px 0}.security-grid p{margin:0;font-size:.86rem}.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.audience-grid article{border:1px solid var(--line);border-radius:12px;overflow:hidden;padding-bottom:20px}.audience-grid h3,.audience-grid p{margin-left:20px;margin-right:20px}.audience-grid h3{margin-top:18px;margin-bottom:8px}.audience-grid p{font-size:.9rem;margin-bottom:0}.audience-art{height:140px;display:grid;place-items:center;font-size:5rem;color:#5b8e7d;background:linear-gradient(135deg,#f0f5ef,#dfe9e1)}.art-build{background:linear-gradient(135deg,#e8eff0,#c9d8df);color:#617e92}.art-owner{background:linear-gradient(135deg,#e9e5dd,#d7e4e6);color:#7b8d92}.onboarding-section{background:#fbfaf8}.onboarding-grid{display:grid;grid-template-columns:1fr 270px;gap:30px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.steps b{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#d0ead7;color:#15543c;margin-bottom:15px}.steps h3{font-size:.96rem;margin-bottom:6px}.steps p{font-size:.82rem}.onboarding-note{padding:20px;border-radius:12px;background:#fff2e0}.onboarding-note p{font-size:.82rem}.contact-section{background:linear-gradient(100deg,#0b513e,#104f43 60%,#426a58);color:#fff;padding:62px 0}.contact-section .eyebrow{color:#b8e6c8}.contact-section h2{font-size:2rem}.contact-section p{color:#e6f1e9}.contact-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.contact-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px;max-width:560px}.contact-placeholder{border:1px solid #c5e2d2;background:#fff;color:#164d3b;padding:10px 13px;border-radius:50px;font-size:.78rem;font-weight:750}.site-footer{padding:27px 0;background:#fff}.footer-inner{display:flex;justify-content:space-between;gap:25px;align-items:start}.footer-brand{display:flex;align-items:center;gap:9px;font-weight:800}.site-footer p,.footer-meta,.footer-links{font-size:.77rem;color:#67717b}.footer-links{display:flex;gap:16px}.footer-links a{text-decoration:underline}.footer-meta{text-align:right}@media(max-width:1100px){.main-nav{gap:12px;font-size:.81rem}.brand{font-size:1rem}.hero-grid{grid-template-columns:44% 56%}.hero h1{font-size:2.7rem}.device-note{display:none}.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.plan{min-height:490px}}@media(max-width:760px){html{scroll-padding-top:72px}.container{width:min(100% - 32px,var(--max))}.header-inner{min-height:64px}.menu-toggle{display:flex;flex-direction:column;gap:5px;border:0;background:none;padding:10px}.menu-toggle span{display:block;width:23px;height:2px;background:var(--ink)}.main-nav{display:none;position:absolute;left:0;right:0;top:64px;background:white;padding:18px 22px 25px;border-bottom:1px solid var(--line);box-shadow:0 12px 18px #0001;flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:10px}.main-nav .nav-login{margin-top:10px}.hero-grid{grid-template-columns:1fr;padding:45px 0 38px;gap:20px}.hero h1{font-size:clamp(2.15rem,8vw,3.1rem)}.hero-desc{font-size:.94rem}.keywords{font-size:.95rem}.device-stage{min-height:260px;padding:20px 35px 15px 0}.phone{width:25%;right:0}.problem-inner{grid-template-columns:1fr}.problem-flow{flex-wrap:wrap;justify-content:center}.flow-result{min-width:95px}.source{min-width:50px}.source span{width:48px;height:48px}.source small{font-size:.65rem}.section{padding:52px 0}.features-grid,.security-grid,.audience-grid{grid-template-columns:repeat(2,1fr)}.roles{grid-template-columns:repeat(2,1fr)}.pricing-heading{align-items:start;flex-direction:column}.onboarding-grid{grid-template-columns:1fr}.contact-inner{align-items:start;flex-direction:column}.contact-links{justify-content:start}.footer-inner{flex-wrap:wrap}.footer-meta{text-align:left}.steps{grid-template-columns:repeat(2,1fr)}}@media(max-width:490px){.brand{font-size:.94rem}.hero-actions{gap:8px}.hero-actions .btn{min-width:0;flex:1;padding:11px 10px;font-size:.85rem}.keywords{font-size:.79rem;letter-spacing:-.02em}.keywords b{margin-inline:1px}.device-stage{min-height:200px;padding-right:24px}.laptop-screen{padding:5px;border-width:2px;border-radius:10px 10px 4px 4px}.laptop-base{height:9px;margin:0 -12px}.phone{border-width:4px;padding:2px;border-radius:15px;bottom:13px}.phone img{border-radius:9px}.phone-notch{height:5px;top:5px}.problem-flow{gap:9px}.flow-arrow{width:100%;text-align:center;transform:rotate(90deg);line-height:1}.features-grid,.security-grid,.audience-grid,.pricing-grid{grid-template-columns:1fr}.feature-card{min-height:auto}.plan{min-height:0}.pricing-heading h2{font-size:1.9rem}.billing{flex-wrap:wrap}.custom-plan{align-items:start;flex-direction:column}.device-strip span{display:block;margin-left:0}.footer-inner{flex-direction:column}.contact-section h2{font-size:1.7rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

.legal-page{max-width:820px}

/* v2: original self-drawn illustrations and SVG icons */
.audience-art{height:auto;aspect-ratio:520/300;overflow:hidden;background:#eef3ef}.audience-art img{display:block;width:100%;height:100%;object-fit:cover}.feature-icon img,.roles span img,.security-grid span img{display:block;width:32px;height:32px}.roles span img{width:36px;height:36px}.security-grid span img{width:34px;height:34px}

/* Design refinement: reference-matched spacious editorial layout */
:root{--ink:#101d30;--green:#076448;--cream:#faf7f1}
.site-header{box-shadow:0 2px 16px #14251a08}
.hero{background:radial-gradient(ellipse at 80% 20%,#d8cbbb 0%,#f7f2eb 38%,#fff 80%)}
.hero-grid{grid-template-columns:40% 60%;min-height:595px;gap:0;padding-block:56px 65px}
.hero h1{font-size:clamp(2.5rem,4.25vw,3.65rem);line-height:1.35;letter-spacing:-.055em}
.hero-copy{position:relative;z-index:2}
.device-stage{min-height:450px;overflow:visible}
.laptop{max-width:700px}
.laptop-screen{border-radius:20px 20px 7px 7px}
.phone{max-width:165px;right:-3px;bottom:10px;border-radius:28px}
.device-note{top:0;right:0;background:#eef8ed}
.problem{background:#f2f8f4;padding:46px 0}
.source span{box-shadow:0 5px 16px #0d45300a;width:64px;height:64px}
.source span img{width:40px;height:40px}
.flow-result{min-width:136px}
.section{padding-block:78px}
.feature-card{box-shadow:0 3px 16px #1e342206;transition:transform .18s,box-shadow .18s}
.feature-card:hover,.audience-grid article:hover{transform:translateY(-3px);box-shadow:0 12px 28px #193c2a10}
.pricing-section{background:linear-gradient(180deg,#fff 0%,#fbfdfb 100%)}
.plan{box-shadow:0 7px 20px #24362a0a}
.plan.pro{box-shadow:0 12px 32px #166dc916}
.audience-art{aspect-ratio:1.8;max-height:230px;background:#e5eeea}
.audience-art img{object-fit:cover;filter:saturate(.95)}
.audience-grid article{transition:transform .18s,box-shadow .18s}
.onboarding-section{background:#f4f9f5}
.contact-section{background:linear-gradient(105deg,#064c3a,#0c5e48 60%,#286d59)}
@media(max-width:1100px){.hero-grid{grid-template-columns:43% 57%}.hero h1{font-size:clamp(2.3rem,4vw,3.1rem)}}
@media(max-width:760px){.hero-grid{grid-template-columns:1fr;min-height:auto;padding-block:42px 36px}.device-stage{min-height:300px}.section{padding-block:55px}.hero h1{font-size:clamp(2.15rem,8vw,3rem)}}
@media(max-width:490px){.device-stage{min-height:205px}.source span{width:50px;height:50px}.source span img{width:30px;height:30px}.audience-art{max-height:none}.hero h1{font-size:clamp(2.1rem,9vw,2.65rem)}}

/* V4 — reference-accurate desktop proportions (reference: 1024px-wide full-page concept). */
@media(min-width:761px){
 :root{--max:1140px}
 .header-inner{min-height:48px}.brand{font-size:.98rem}.brand img{width:29px;height:29px}.main-nav{gap:21px;font-size:.76rem}.nav-login{padding:7px 15px}
 .hero{background:radial-gradient(ellipse at 77% 17%,#d7c5b1 0%,#f7f2eb 42%,#fff 78%)}
 .hero-grid{grid-template-columns:42% 58%;min-height:365px;padding-block:30px 32px}.hero h1{font-size:clamp(2.3rem,3.9vw,3.35rem);line-height:1.24;margin-bottom:13px}.hero .eyebrow{margin-bottom:9px}.keywords{font-size:.98rem;margin-bottom:9px}.hero-desc{font-size:.91rem;line-height:1.75}.hero-actions{margin-top:17px}.hero-actions .btn{padding:9px 17px;min-width:128px;font-size:.85rem}.fine{font-size:.75rem;margin:11px 0 0}.device-stage{min-height:315px;padding:0 30px 12px 0}.laptop{max-width:650px}.phone{max-width:128px;bottom:4px;right:-7px}.device-note{font-size:.65rem;top:2px;right:-8px}
 .problem{padding:21px 0}.problem-inner{grid-template-columns:32% 68%;gap:10px}.problem h2{font-size:1.42rem;margin-bottom:7px}.problem p{font-size:.82rem}.source span{width:49px;height:49px}.source span img{width:30px;height:30px}.source small,.flow-result small{font-size:.67rem}.flow-result{min-width:100px;padding:9px}.flow-result img{width:35px;height:35px}.flow-result strong{font-size:.83rem}
 .section{padding:22px 0}.section-heading{margin-bottom:13px}.section-heading .eyebrow,.pricing-heading .eyebrow{display:none}.section-heading h2,.pricing-heading h2{font-size:1.52rem;margin-bottom:3px}.section-heading p:last-child,.pricing-heading p:last-child{font-size:.8rem}
 .features-grid{gap:9px}.feature-card{min-height:0;padding:13px;display:grid;grid-template-columns:48px 1fr;grid-template-rows:auto 1fr;column-gap:9px;align-items:start;border-radius:8px}.feature-icon{grid-row:1/3;width:43px;height:43px;margin:0}.feature-icon img{width:27px;height:27px}.feature-card h3{font-size:.9rem;margin:2px 0 4px}.feature-card p{font-size:.74rem;line-height:1.55}.disclaimer{font-size:.65rem;margin-top:8px}
 .collaboration{background:#fff}.roles{gap:8px}.roles article{padding:6px}.roles span{width:49px;height:49px;margin-bottom:5px}.roles span img{width:29px;height:29px}.roles h3{font-size:.85rem}.roles p{font-size:.73rem;margin-bottom:0}.device-strip{margin-top:8px;padding:9px;font-size:.8rem}
 .pricing-heading{margin-bottom:8px}.pricing-notice{font-size:.68rem;margin-bottom:8px}.pricing-grid{gap:9px}.plan{padding:15px 13px;border-radius:9px}.plan.pro{padding:14px 12px}.plan-code{font-size:.7rem}.plan-tag{font-size:.63rem;padding:2px 8px;margin-top:3px}.plan h3{font-size:1.2rem;margin:7px 0 3px}.plan-audience{font-size:.72rem;margin-bottom:8px}.price strong{font-size:1.82rem}.price small,.price span{font-size:.73rem}.billing-note{margin:3px 0 8px}.plan-limits,.checklist{padding:9px 0;font-size:.73rem}.plan-limits li,.checklist li{margin:4px 0;padding-left:20px}.plan .btn{padding:8px 4px;font-size:.73rem}.included{font-size:.72rem}.custom-plan{margin-top:10px;padding:12px 18px}.custom-plan h3{font-size:.97rem}.custom-plan p{font-size:.74rem}.custom-plan .btn{padding:8px 15px;font-size:.73rem}
 .security-section{background:#fff}.security-grid{grid-template-columns:repeat(6,1fr);gap:7px}.security-grid article{padding:10px 8px;border:0;border-right:1px solid #e5ebe6;border-radius:0;min-width:0}.security-grid span img{width:28px;height:28px}.security-grid h3{font-size:.78rem;margin:5px 0 2px}.security-grid p{font-size:.66rem;line-height:1.45}
 .audience-grid{gap:10px}.audience-grid article{padding-bottom:12px}.audience-art{max-height:110px}.audience-grid h3{font-size:.88rem;margin:10px 12px 4px}.audience-grid p{font-size:.74rem;margin:0 12px}
 .onboarding-grid{grid-template-columns:1fr 260px;gap:15px}.steps{gap:8px}.steps b{width:32px;height:32px;margin-bottom:7px}.steps h3{font-size:.79rem}.steps p{font-size:.7rem}.onboarding-note{padding:12px}.onboarding-note h3{font-size:.86rem}.onboarding-note p{font-size:.71rem;margin-bottom:4px}
 .contact-section{padding:22px 0}.contact-section .eyebrow{display:none}.contact-section h2{font-size:1.52rem;margin-bottom:5px}.contact-section p{font-size:.77rem;margin:0}.contact-links{gap:6px}.contact-placeholder{padding:6px 9px;font-size:.69rem}.site-footer{padding:13px 0}.footer-brand{font-size:.8rem}.footer-brand img{width:22px}.site-footer p,.footer-meta,.footer-links{font-size:.66rem}
}
@media(min-width:761px) and (max-width:1100px){.container{width:calc(100% - 100px)}.hero-grid{grid-template-columns:43% 57%}.hero h1{font-size:2.65rem}.device-stage{min-height:275px}.main-nav{gap:13px;font-size:.7rem}.plan{padding:12px 9px}.plan.pro{padding:11px 8px}.plan h3{font-size:1.08rem}.price strong{font-size:1.56rem}}