5.1. Discussion of the Clusters and Key Characteristics
The k-means cluster analysis identified two attitudinally distinct groups of Chinese tourists based on their orientation toward sustainability in the hotel context: Cluster 1—environmentally engaged travelers and Cluster 2—conventional comfort travelers. This segmentation aligns with the established frameworks in the sustainable tourism literature that distinguish tourists by their value-driven versus convenience-driven behavioral profiles [
18,
40]. These results reinforce calls within the literature to move beyond demographic segmentation and adopt more nuanced attitudinal and psychographic approaches to understanding sustainable consumer behavior [
25,
42].
Cluster 1, environmentally engaged travelers, was characterized by a high perception of sustainability, underpinned by strong environmental concern, a sense of personal responsibility, and a commitment to engaging with eco-conscious practices. Their attitudinal and behavioral orientation reflects the value–belief–norm (VBN) theory, which emphasizes how internalized environmental norms and moral obligations drive pro-environmental behavior [
17,
33]. Consistent with findings by Zhang (2022), these travelers—typically younger, urban individuals from Tier 1 cities—are increasingly willing to support eco-certified accommodations and are even prepared to pay a premium for authentic sustainable experiences [
22]. This group assigned a significantly higher importance to sustainability-related values across the entire hotel service journey, particularly in the ethical/environmental and social dimensions during the post-consumption stage. Their receptivity to symbolic cues—such as eco-labels, third-party certifications, and transparency in reporting—supports the signaling theory proposition that sustainability information functions as a proxy for trust and service quality in the high-intangibility context of hospitality [
51]. These findings also substantiate the multidimensional value framework presented in
Section 2.4, demonstrating that this group derives not only functional value but also affective, moral, and social value from sustainable hospitality touchpoints [
72,
73,
74].
In contrast, Cluster 2, conventional comfort travelers, exhibited lower environmental awareness and weaker alignment with sustainability-oriented decision-making. Although they did not explicitly reject sustainability, their service evaluations were less influenced by ethical or collective considerations. Instead, they prioritized emotional and functional value, especially during the consumption stage, where cleanliness, convenience, and comfort dominated their perceptions. This aligns with prior findings suggesting that many Chinese tourists—especially those from lower-tier cities or with limited exposure to sustainability education—are more influenced by practical benefits than abstract ethical ideals [
18,
31]. This group’s emphasis on in-stay functionality echoes insights from the infrastructure practice theory, which posits that built environments and service design can enable or constrain sustainable behavior depending on ease, clarity, and comfort [
59]. For these travelers, sustainability practices must be seamlessly integrated into service design, such as via refillable dispensers or intuitive recycling systems, to be effective.
The empirical differences between the two clusters were most pronounced in several structural paths. Specifically, Environmentally Engaged Travelers exhibited significantly stronger path coefficients for ethical/environmental value across all three service stages, as well as for functional value in both the pre- and post-consumption stages, and social value in the post-consumption stage. This pattern reflects the temporally dynamic nature of sustainability perception, supporting the conceptualization of perceived value as a context-sensitive construct shaped by the progression of guest interactions throughout the service journey [
46]. This reflects their holistic integration of sustainability into the travel experience, from intention and booking to post-stay engagement, echoing findings by Teng et al. (2023), who emphasized that emotional and moral congruence enhances tourist satisfaction in green hotel contexts [
89].
The structural path differences between the two clusters were most evident in how they evaluated ethical/environmental value across all three service stages. Environmentally engaged travelers also reported stronger responses to functional value in the pre- and post-consumption stages and to social value in the post-consumption stage. These results underscore the temporally dynamic nature of perceived value, which, as outlined in
Section 2.4, is shaped through a series of interactions across the pre-consumption, consumption, and post-consumption stages [
46]. This pattern confirms that sustainable value is not static, but rather co-created through guest interaction, experience interpretation, and emotional engagement, aligning with the service-dominant logic [
47].
For conventional comfort travelers, emotional value still played a moderate role during the consumption stage. This partially supports the findings of Lee (2011), who determined that even low-involvement tourists may respond positively to green practices when they are framed around convenience or emotional resonance rather than ethical obligation [
31]. Their moderate engagement with sustainability also reinforces the importance of framing and contextual delivery, as advocated by Prebensen and Rosengren (2016), who emphasized that value co-creation begins before the actual service experience and must be consistently reinforced [
55].
Overall, the cluster distinctions confirm the utility of attitudinal segmentation in sustainable hospitality. Tourists perceive and evaluate sustainability not uniformly, but through individualized mental models shaped by values, lifestyle, and motivational drivers [
12,
25,
89]. This observation is consistent with prior segmentation research, including Dolnicar and Grün (2009) and Han (2021), who advocate for psychographic segmentation as a more predictive tool than demographic categorization in sustainability contexts [
40,
42]. By applying this segmentation lens to the entire hotel service journey, this study contributes to a more granular understanding of how tourists construct perceived value in sustainable hospitality. Cluster 1 tourists clearly prioritize symbolic, moral, and socially oriented sustainability attributes, while Cluster 2 travelers remain more attuned to functional benefits and emotional comfort. These findings offer both theoretical validation of the multidimensional value framework and practical guidance for designing differentiated sustainability strategies tailored to diverse Chinese tourist profiles.
5.2. Theoretical Implications
This study advances the theoretical discourse on sustainable tourism and service experience by refining how perceived value is conceptualized, segmented, and measured within environmentally responsible hospitality contexts. First, it contributes to the perceived value theory by empirically validating a multidimensional and temporally dynamic framework of value construction. Unlike earlier models that treated perceived value as a static or unidimensional construct (e.g., Sweeney & Soutar, 2001 [
74]), this study disaggregates value into four distinct but interrelated dimensions—functional, emotional, social, and ethical/environmental—and examines their roles across the pre-consumption, consumption, and post-consumption stages of the hotel guest journey [
74]. This aligns with the findings of Sánchez-Fernández and Iniesta-Bonillo (2007) and others advocating for richer, more experience-sensitive value models, particularly in sustainability-driven service environments [
42,
73].
The stage-specific approach adopted in this study enhances the existing theoretical models by demonstrating that value perception evolves in response to service touchpoints and temporal progression. This perspective supports the argument that perceived value is contextually constructed, not simply a cumulative output, and varies by both the attitudinal disposition of the guest and the stage of service interaction [
46,
47]. These findings respond to recent calls for integrative frameworks that merge sustainability signals with consumer psychology in hospitality and tourism, providing an empirical foundation for theory development that more precisely accounts for how and when sustainability efforts are interpreted as meaningful by diverse traveler segments.
Second, by integrating the service journey framework into the context of sustainable hotel experiences, the study offers new theoretical insight into how perceived value is co-created from pre-stay expectations to post-stay reflections. The finding that the emotional value is most salient during the consumption stage, while the functional and ethical/environmental values are more prominent in the pre- and post-consumption stages, adds temporal specificity to the concept of value co-creation within the logic of the service-dominant theory [
47]. This differentiation reinforces the notion that sustainability perception is not a generalized mindset but a stage-specific cognitive–affective response, shaped by the type of engagement and service context. These findings resonate with those of Lee (2011), who emphasized that pro-environmental behaviors in tourism are driven by a dynamic interplay of emotional, cognitive, and contextual factors that evolve over time [
30].
Third, the study provides empirical support for attitudinal segmentation as a powerful theoretical lens for understanding heterogeneity in sustainable consumer behavior. Through the application of k-means clustering, two distinct profiles, environmentally engaged travelers and conventional comfort travelers, were identified. This segmentation model aligns with prior research by Prayag et al. (2017) and Dolnicar and Grün (2009), who found that psychographic variables, particularly personal values and environmental concern, offer greater explanatory power than demographics in predicting sustainable travel behavior [
40,
64]. The distinct patterns in value perception between clusters in this study affirm that internalized beliefs and cognitive orientations not only shape general preferences, but also moderate how sustainability is evaluated across different service stages.
Additionally, this research builds on that of Han et al. (2023) [
17], who documented a growing attitudinal divergence among Chinese tourists toward sustainability. While previous studies primarily identified an emerging segment of environmentally conscious travelers in Tier 1 cities [
17], this study extends those findings by empirically mapping how these attitudinal differences manifest in the evaluation of sustainable service features throughout the guest journey. In doing so, it bridges the gap between abstract environmental concern and real-time behavioral responses, offering a more applied perspective on the attitudinal antecedents of green hotel experience evaluations.
Finally, the integration of attitudinal segmentation, multidimensional value theory, and service journey temporality contributes a novel framework that links sustainability orientation to stage-specific service evaluations. This reinforces the theoretical relevance of adopting experience-based and psychologically informed models in sustainable hospitality research. By empirically validating how value is interpreted differently across guest segments and service phases, this study provides a granular and behaviorally grounded contribution to the broader field of sustainable service theory, enabling more precise and theoretically coherent approaches to future segmentation, positioning, and value co-creation strategies.
5.3. Managerial Implications
The identification of two attitudinally distinct guest segments, environmentally engaged travelers and conventional comfort travelers, offers actionable guidance for hospitality managers aiming to tailor sustainability strategies to diverse consumer profiles. To effectively implement these insights, sustainability initiatives should be designed with sensitivity to both attitudinal differences and the temporal stages of the hotel service journey. This dual lens facilitates alignment between service delivery and perceived value, thereby enhancing both guest satisfaction and the impact of sustainability programs.
For environmentally engaged travelers, who demonstrate high responsiveness to the ethical and social value dimensions throughout the guest journey, sustainability messaging and service design must emphasize authenticity, transparency, and long-term environmental responsibility. During the pre-consumption stage, hotels should highlight third-party certifications, carbon offset options, and partnerships with local conservation or community initiatives to establish trust. In the consumption stage, storytelling elements—such as narratives around local sourcing, biodiversity conservation, or fair labor practices—can reinforce alignment with these guests’ personal values. In the post-consumption stage, personalized communications (e.g., environmental impact summaries showing energy or water saved) can further validate the guest’s contribution, reinforcing brand trust and loyalty. These practices directly respond to the value dimensions outlined in
Section 2.4 and are known to enhance guest identification and advocacy behavior, especially among sustainability-oriented segments [
44,
73].
In contrast, conventional comfort travelers, who prioritize functional and emotional value, especially during the in-stay phase, require a more pragmatic approach. Sustainability features should be framed in terms of convenience, comfort, and enhanced sensory experience, rather than abstract environmental benefits. For instance, highlighting how energy-efficient technologies improve room temperature stability, or how locally sourced ingredients enhance food quality, is likely to resonate more with this segment. Emotional value can be supported through aesthetically pleasing, biophilic design and calming, eco-conscious environments. As shown in the literature [
31], guests with lower environmental orientation may still appreciate sustainability initiatives when they are clearly positioned as value-enhancing rather than value-restricting.
Across both segments, message consistency throughout the guest journey is critical. Sustainability should be embedded into the brand narrative in a coherent, credible, and visible manner, from booking through check-out and follow-up engagement. Digital platforms should display eco-certifications and allow guests to select green options during booking. In-room materials should explain how systems operate and how guest behaviors support sustainability goals. Post-stay communications can offer data-driven sustainability feedback and incentivize repeat green behavior. As supported by previous research [
13], maintaining this coherence across all touchpoints reinforces perceived authenticity and mitigates green skepticism, particularly among environmentally attuned guests.
Importantly, the use of attitudinal segmentation, as demonstrated through k-means clustering in this study, provides a more effective framework for hospitality managers than traditional demographic segmentation. As tourist behavior increasingly reflects psychographic and value-based motivations, hospitality businesses should consider incorporating attitudinal variables into CRM systems, guest feedback mechanisms, and personalized marketing campaigns. This allows for more precise targeting, tailored service offerings, and strategic resource allocation. Particularly in evolving markets such as outbound Chinese tourism, where expectations are rapidly shifting, such segmentation can support proactive service adaptation [
17,
42].
In summary, aligning sustainability strategies with the emotional, ethical, and functional value priorities of different tourist segments, while ensuring consistent delivery across the service journey, enables hotels to meet diverse guest expectations, enhance brand credibility, and strengthen their contribution to the long-term advancement of sustainable hospitality.